Hello. I am Seoultech Univ. student. I'm enjoying your video. Could I ask you a question? There is no PEM in a Fluent program.(33:31) Isn't it always on Ansys 20 version????
Hello dear Cocoa, you are welcome! If it is the academic version, it is missing it I guess even if you type the script I showed in the video. The last academic version is missing lots of features. Danke!
Thank you very much for this tutorial. My graduation project was about sofc analysis, i think i can use these informations to set a sofc analysis. Thank you very much again
Great and I am also dealing with SOFC. Are you using same geometry like pem fc. How we have to define the anode, electrolyte and cathode. Is it fluid type or solid type?
Hello dear, simply the free student version is not full and not suitable for commercial applications. You have to get the full license (commercial or academic). Thanks
sir @1:41:32 i am not getting pem+ cool mixture as mixture properties. i am getting only fc mixture. number of volumetric species =4 can u tell me why coolant mixture is not loading?
Hello dear Avi, I am not sure, if you are using the student version, it may be the reason because it is not a full version. If not, try to repeat the steps again carefully. Danke!
Hello, sir! Thank you for this detailed explanation. I even analyzed it with a cooling model, but I have a question in the porous-jump setting. At 27:46, the top of the gdl naturally divides into three parts, but it's not divided like that in my model. So I made the entire top side porous-jump, but it can't be analyzed. When designing a model with an inventor, did you design the top of the gdl separately?
Hello dear Su, you're welcome! In Inventor, each part was generated. Then theyw ere assembeled in ANSYS. The porous jump was the contact between the GDL and the channel. You should study carefully how to simulate the model you have.
@@haveanicetime Thank you for your reply. I also made each part in the Inventor and assembled it in Ansys. But unlike the video, the top side of the gdl was not divided in three parts. I will send you an email with some screenshots, so please check it. I found your email address in the comments below. Is the email address correct? mech.eng.ahmedmansour @ gmail. com (I used spaces)
Hello dear Aarif, I am not familiar with this point. Accordingly, study the basics of it and then check out the tutorials related to ANSYS and the reserch articles. Thanks
sorry for my bad, how can you stack each component on each other so well? at 12:05. at "operation tab" i choose "add material" but it give only one body?
Instead of simulating SOFC, If I want to simulate the Solid Oxide Electrolysis Cell (SOEC) for CO2 electrolysis to CO, do I need to follow the same steps? Please tell about it.
Hello sir, I have a problem in setup-fuel cells and electrolysis . I made porous jump but I can't find it in PEM Feul Cell Model - contact resistivity. Can you give me a solution about this problem?
Hello dear Kim, it requires the specific way i modeled it in the geometry and the named selection. Please check it out again and try. It must be found in the setup if you are making the other steps correctly. Especially from new part technique. Danke!
Hello sir I'm having the same problem. I'm doing CFD by referring to the new design. When I run Fluent, an unspecified wall is created. There are many walls. The Porous_jump is automatically set to interface. Is there a way to solve this? My email is motrr1230@gmail.com. If you are willing to review it, we will send you the CATIA stp file and ansys 18.0 file. thank you sir
@@haveanicetimeThanks sir! the 'new par technique' on your reply means that I have to make new part by using Catia? I can't fully understand that words meaning:( Can you tell me more specifically about new part technique..?
Hello dear Kyung-jun, the issue originates from not using the "from new part" method shown at 19:20. Also, we must add each layer one by one following the add frozen and add material order. Danke!
When you added coolant, output power was expected to be increased. However, current density decreased from 0.21 to 0.2 because of the loss of the collector mass. How could we cool and increase the performance on the same time ?
Hello dear Mohamed, it is a compromise between the temperature and the performance. Like the turbines, you can increase the temperature to a limit that does not destroy the material of the blades, the higher the temperature the higher the power output. on the other hand, we cannot increase the temperature as we think because of the metallurgical principles. The samefor the fuel cell, we care about the performance in the end, so we try to approach this from the temperature decrease and at the same time optimize the electrical performance. Study more about this point in the literature and see what you get :) ..Thank you
Thank you sir! I tried to run the simulation (single pair of channels, without coolant channel) as the video guided, but the currents I_anode & I_cathode dropped to zero quickly after several iterations. So could you help me get what went wrong?
I get it! The 'Cell Zone Conditions' for the 'membrane' should be set to 'fluid' rather than 'solid', which is curiously contradictory to fluent manual...
Another problem to notice is that you have make sure the solid-fluid-interfaces are convert to shadow pairs (coupled-wall-BC) using different meshing tools such as Pointwise
Hello dear Manuel, make sure you did not miss the "From new part" step in designmodeler. This is mandatory to be able to continue the named selection and give the porous jump name to the faces. Danke!
Hello, this was done at first by the CAD modeling software. Using the move command to take into consideration the distances and thicknesses of each part. You gotta learn that at first. Thanks
Hello sir with a little bit different geometry ı used the same settings as you in fluent. But ım keep getting floating point exception error. How can ı solve this
Something is not correct with the steps, geometry, meshing, or setup. send me a message to mech.eng.ahmedmansour@ gmail.com to send you the CAD files. Thanks
hlo sir, i have a question. why r u running simulation only for 150 iterations? what if we keep it running for 2000 iterations, will it give same result?
Hello dear Avi, it depends on the convergence. If the simulation reaches the convergence and the solution does not change after a certain number of iterations, no need to consume time. Also, it depends on the residuals. The lower the residuals, the more time consumed. 0.001 consumes less time than 0.0001. Anyway, it depends on the change in the final results. You can run more iterations but if the convergence is reached, the software may stop automatically even if you set the iterations to a higher value. Danke!
Hi, thank you for sharing your tutorials. I am performing some simple simulations with a single cell and a straight channel but the current density of the cathode falls to zero after few iterations. How can I face this issue? Thank you
Hello dear Maria, something is not correct with the geometry or meshing or the setup itself. amke sure that you are not using the free student version because it is missing lots of important features. Danke!
@@haveanicetime Thank you for your quick reply. I verified the geometry as well as I changed the mesh but this error still occurs. As regards setup, I followed several tutorials and I also studied the fluent theory guide. It would be very useful if we could discuss about it or if I could send you my simulation in order to have a little help. Thank you again
thanks for this amazing video , i have a problem : when i run the calculator , there is an error said : floating point exception , i didn't understand why ?
Hello, you can follow this procedure shown in the video and then get a paper related to the serpentine cooling and apply it and validate the results. You have to follow the video at first because the procedure is the same. Thanks
Hello bro, When I want to analyze, I encounter the following problem. I followed all the steps completely, but for some reason this problem occurs when I want to initialize. Do you have an idea? ''warning: It is highly likely that the Anode Collector and GDL are not connected!''
Hello dear Alperen, I have received your email. The issue originates for the mesh size and it affects convergence. I have shown that in the video. Thanks
Hello sir, thank you for your video, but my current density magnitude is very high like around 8A i can't find the problem, do you suspect anything that i should check, thank you.
Hello dear Mohammad, you are welcome. The values are mainly dependent on the geometry and the boundary conditions. Of course if your model is different than that shown in the video, the results are completely different. Danke!
Hello dear Uday, something is missing in the geometry, meshing, or setup. Recheck again and make sure that you are not using the free student version because it is missing lots of features. Thanks
@@haveanicetime Hi sir, thanks for your rply. Unfortunately I don't have access to licensed version so trying with cracked one. I have made lot many changes but still I am not able resolve the issue.
@@haveanicetime Thanks for you response .I have your files already shared. But when I am trying to creat a new design, I am getting this compilation errors. May be according to the modified design, operating conditions or boundary conditions should be redefined. May I know the calculation part you have done for boundary conditions? Your help is highly appreciated.
Dear sir, I enjoyed your video very much. I have some problems need your help. What are the conditions for the problem to converge? and how is the meshing method for the results to be accurate? Thank you for helping me.
Hello, the geometry details are found in "CFD simulation of PEM fuel cell performance: Effect of straight and serpentine flow fields" and I showed the other things in the video. Danke!
thank you so much for the video, but i got the problem, when i click to "calculation", the ansys simulation closed automatically, it didnot give results? can you help me
@@haveanicetime great, I think that was geometry, I designed it myself. Could you give me the size information that you used in the video, and can I design the entire model by NX and open the model in ansys for simulation?
Hi Sir, at the end of the calculation I have got an error: floating point exception. May I know what does it mean and what can be done to overcome it? Thank you
@@haveanicetime Thanks for your immediate response. I have figured it out and now I am able to execute the calculation. But when trying get the vectors I am facing a different error as below. CX.1920.exe has stopped working. May I know what does it refers to?
Hello sir, I'm graduate student major in mechanical engineering. I use this PEMFC model too. I evaluate Springer's ion conductivity model formula. Do you change this formula or use the default value? I would appreciate it if you could reply．
Hello dear, you're welcome! Could you please send me some details about your study to my e-mail to help you better? Here is the e-mail: mech.eng.ahmedmansour@gmail.com Danke!
Sir, during simulation after 3 or 4 iterations, the solver throws errors i.e. Cp value can not be calculated for H2...like this one. And one more errors divergence in udf. Can you tell me reasons and how to resolve those?
Hello dear Kshitij, something is not correct with the steps of the modeling starting from the geometry to the setup in Fluent. Check again what you have done, it may the mesh size or any missed step. Danke!
Hello dear Rohit, simply I calculated the distances and took them into consideration in Autodesk Inventor by using the move tool. Accordingly, when you import each layer, no overlapping occurs. Danke!
@@haveanicetime Hello, thank you for your excellent tutorial, I am also studying SOFC, I also want to ask for the add-on module for free, can you send it to me?
hello. i am seoultech univ. mechanical engineering student. I don't understand why my "cooling channel PEM file" has a floating error. would you please check my file? I'm so hard..;;;
Hello dear Almaas, the simulation is very sensetive as I mentioned in the video. You must prepare the geometry very well and test many mesh sizes until you reach no errors or divergence. Thanks
Sir I tried doing this but I get floating point exception error Everytime. Till initialisation everything looks fine but at last floating point exceptionerror comes. Please help me bro
@@almaasalfy6041 If it is the student version, it is missing some features. It is better to use the commercial version or older versions than 20's. Danke!
@@grvishwaktej3232 Hello, simply get the information like I said and follow the procedure of this tutorial and use the SOFC module not the PEM module. You must give a try. Danke!
Hi there i keep getting this error after naming the various parts in the mesh. Following your steps in the tutorial video, i observed that you assigned 2 names for one specific part of the cathode channel (tab - a and outlet - cathode). The error message i get is ''The mesh file exporter does not support overlapping geometry in named selections. Please resolve the issue and try again.'' Please how come you never had this error in your simulation having named the outlet cathode channel as tab - a please.
Hello dear Willy, I did not do this, each named selection must be unique and only for one face. You thought that I used the same face for 2 named selection and this is not correct. Each time I name a face, I choose the face and give it a unique name. Only watch the green face I select and I guess you focused on the red one too and this is the source of your problem. At 25:30, I selected the top face giving it the name tab_a and you noticed the red which I did not touch until I named it as outlet_cathode.We can select many faces for one named selection but we cannot name different named selections for one face. Danke!
hi sir ,thanks for the video,i want to ask you,my graduation thesis is about producing hydrogen from water splitting and i need to design a reactor by ansys Fluent for this purpose ,what shall i do ,thank you for your help
Hello dear Ichrak, you are welcome! Simply you must do a deep literature review and see the recent studies about it and how they simulate the process, then you know. Danke!
@@haveanicetime thank you, i just wanted to know is the PEM electrolysis cell is different comparing to what have you done in this video ?can this video be suffisant for a hydrogen production only?
@@haveanicetime thank you very much ,i have done the same work here but i drew it with solidworks because i didn't figure out how to do it with design modeler ,but there is a problem in the calculation,it tells me that i have it cannot converge "Divergence detected in AMG Solver",what shall i do please
You missed something. The geometry must be handled as I showed in the video. Missing any single step or not refining the mesh causes this issue. Danke!
@@haveanicetime Thank you for your reply. Actually, I couldn't find clear information how to simulate it. Could you please share any document or example related with the dry cell? qu58phy@gmail.com
Hello Sir, The video was very helpful. I have 2 question please ; 1. - The mixture composition should be indicated by given mass fraction of both H2 in anode channel and O2 in cathode channel as well as the composition of water flow with in the PEMFC system, particularly through different cathode layers 2. Gas flow is co current flow or counter current.
Hello dear Mohamed, as shown in the video, the flow rate is consisted of water and oxygen from a side, and water and hydrogyn from the opposite side giving the mass flow rate and the species. It is better to make a literature review about the fuel cells and get some references of fundamentals to understand the physics of them. Danke!
@@haveanicetime Error at Node 2: Dot product of flow direction and area normal is zero. Check the specified flow direction on Mass Flow Inlet boundary conditions for thread 81. I am getting this error during stack part. I successfully completed the 1st part but getting above error in 2nd part of the tutorial (during stack). Please help me.
@@akashsinha5715 Hello dear Akash, something is not correct with the geometry, mesh or the setup like I said before. As you see, I assured on the complexity of the simulation and its sensitivity. Make 100% sure of following every step and carry out a mesh test. Also the boundary conditions must be suitable for the model's dimensions. Danke!
@@roshankumarparihar6104 The boundary conditions must be realistic and suitable for the gemoetry and based upon experiments or analytical estimations. Danke!
Sir thank you for this tutorial. I'm doing my graduation and I'm working on PEM fuel cell simulations, doing the same project. From past few days I'm doing my best but I'm unable to naming the porous jump because the GDL part is not divided into three parts. It will be very helpful if you share Mesh file with me. thank you.
Hello, this video shows the idea of the PEMFC. It is enough to see other types of fuel cells and use other options in the module or see other modules if available in ANSYS to model your design. I only make videos about things that have modules or clear references from ANSYS. Danke!
Hello sir, first of all, thank you for this useful tutorial. Although I do the same steps as you, I get different results. Can you write the all dimensions of the cell you are working on in the video? Maybe that's why the difference is.
hello bro I am also working on BTMS system for evs for my college project can you help me with that on how to performe simulation on Solidworks or ansys plese help me on simulation part brother
Hello, TH-cam does not allow the comments that have e-mails from the subscribers to avoid issues. Hoever, I saw your notification and sent the files to the e-mail. Danke!
Hello dear Ichan, I have not received any notifications after you posted your reply here. I have just seen it manually. Do you still wanna the files? Danke!
I’m learning the air flow field in PEMFC’cathode side recently. really need the simulation model. Could u send the file to me? my email address :joejoejoe523joe@gmail.com
Dear Sir, Thank you so much for the video. Can you please share the CAD file and also tell the dimensions used for cooling channels,It will be great help🙏🏻
helo sir, could I ask some question? because I hve final assignment about this PEMFC in Ansys sir. If can, maybe I can contact you via email or whatsapp. Thank You in advance.
Hello sir Even though I followed every step perfectly I am getting ( ERROR : FLOATING POINT EXCEPTION ) I hav tried so many times getting the same error . Can u please help me with that
Hello dear K, something is not correct with the geometry or the mesh size or with the setup. Check out each stage especially the mesh size, change it until you get no errors as I mentioned. Danke!
Sir, the video is really great and much needed one.
You are welcome dear Raj!
It was a comprehensive guide. Great job.
Hello. I am Seoultech Univ. student. I'm enjoying your video. Could I ask you a question?
There is no PEM in a Fluent program.(33:31) Isn't it always on Ansys 20 version????
Hello dear Cocoa, you are welcome! If it is the academic version, it is missing it I guess even if you type the script I showed in the video. The last academic version is missing lots of features.
Danke!
Thanks a lot for this tutorial. It will help me for my project.
Thank you very much for this tutorial. My graduation project was about sofc analysis, i think i can use these informations to set a sofc analysis. Thank you very much again
Hello dear Umut, you're very much welcome! Danke!
Great and I am also dealing with SOFC. Are you using same geometry like pem fc. How we have to define the anode, electrolyte and cathode. Is it fluid type or solid type?
@@harishvinoth7555 could you send me your email
Hi, thank you for teaching. I'm using ansys 2024 student version, and i cant find same menu at 36:28. Why is it different with your ansys?
Hello dear, simply the free student version is not full and not suitable for commercial applications. You have to get the full license (commercial or academic). Thanks
Thank you for this video. Is there any tutorial on how to make the geometry of this cell? Thank you.
Hello, the geometry are clearly shown in the video. Thanks
@@haveanicetime Thank you.
sir @1:41:32 i am not getting pem+ cool mixture as mixture properties.
i am getting only fc mixture.
number of volumetric species =4
can u tell me why coolant mixture is not loading?
Hello dear Avi, I am not sure, if you are using the student version, it may be the reason because it is not a full version. If not, try to repeat the steps again carefully. Danke!
Hello, sir! Thank you for this detailed explanation. I even analyzed it with a cooling model, but I have a question in the porous-jump setting.
At 27:46, the top of the gdl naturally divides into three parts, but it's not divided like that in my model. So I made the entire top side porous-jump, but it can't be analyzed. When designing a model with an inventor, did you design the top of the gdl separately?
Hello dear Su, you're welcome! In Inventor, each part was generated. Then theyw ere assembeled in ANSYS. The porous jump was the contact between the GDL and the channel. You should study carefully how to simulate the model you have.
@@haveanicetime Thank you for your reply. I also made each part in the Inventor and assembled it in Ansys. But unlike the video, the top side of the gdl was not divided in three parts. I will send you an email with some screenshots, so please check it. I found your email address in the comments below. Is the email address correct?
mech.eng.ahmedmansour @ gmail. com (I used spaces)
@@romp2791 Hello dear Su, okay, yes it is correct. Have you tried the "From new part" step? Danke!
Hello sir,
thanks for the tutorial, can you suggest how to to do two phase simulation in PEM fuel cell.
Hello dear Aarif, I am not familiar with this point. Accordingly, study the basics of it and then check out the tutorials related to ANSYS and the reserch articles. Thanks
sorry for my bad, how can you stack each component on each other so well? at 12:05.
at "operation tab" i choose "add material" but it give only one body?
I sent the CAD files. Follow the steps I showed. I prepared the geometry in Autodesk Inventor taking the distances into consideration. Danke!
@@haveanicetimeI got it, thank you so much
Instead of simulating SOFC, If I want to simulate the Solid Oxide Electrolysis Cell (SOEC) for CO2 electrolysis to CO, do I need to follow the same steps? Please tell about it.
I only know the PEM. You can search for the other types online and find other references. Thanks
@@haveanicetime Thank you.
Hello sir, I have a problem in setup-fuel cells and electrolysis . I made porous jump but I can't find it in PEM Feul Cell Model - contact resistivity. Can you give me a solution about this problem?
Hello dear Kim, it requires the specific way i modeled it in the geometry and the named selection. Please check it out again and try. It must be found in the setup if you are making the other steps correctly. Especially from new part technique. Danke!
Hello sir
I'm having the same problem. I'm doing CFD by referring to the new design.
When I run Fluent, an unspecified wall is created. There are many walls. The Porous_jump is automatically set to interface. Is there a way to solve this? My email is motrr1230@gmail.com. If you are willing to review it, we will send you the CATIA stp file and ansys 18.0 file. thank you sir
@@haveanicetimeThanks sir! the 'new par technique' on your reply means that I have to make new part by using Catia? I can't fully understand that words meaning:( Can you tell me more specifically about new part technique..?
@@YHKIM-el8se No dear Kim, watch the moment 19:20 please. Danke!
Hello dear Kyung-jun, the issue originates from not using the "from new part" method shown at 19:20. Also, we must add each layer one by one following the add frozen and add material order. Danke!
When you added coolant, output power was expected to be increased. However, current density decreased from 0.21 to 0.2 because of the loss of the collector mass.
How could we cool and increase the performance on the same time ?
Hello dear Mohamed, it is a compromise between the temperature and the performance. Like the turbines, you can increase the temperature to a limit that does not destroy the material of the blades, the higher the temperature the higher the power output. on the other hand, we cannot increase the temperature as we think because of the metallurgical principles. The samefor the fuel cell, we care about the performance in the end, so we try to approach this from the temperature decrease and at the same time optimize the electrical performance. Study more about this point in the literature and see what you get :) ..Thank you
Thank you sir! I tried to run the simulation (single pair of channels, without coolant channel) as the video guided, but the currents I_anode & I_cathode dropped to zero quickly after several iterations. So could you help me get what went wrong?
I get it! The 'Cell Zone Conditions' for the 'membrane' should be set to 'fluid' rather than 'solid', which is curiously contradictory to fluent manual...
This is to ensure that the interfaces between membrane and catalyst layers are identified as 'Internal' boundaries
Another problem to notice is that you have make sure the solid-fluid-interfaces are convert to shadow pairs (coupled-wall-BC) using different meshing tools such as Pointwise
Hello dear, if you still have the issue, send me email to mech.eng.ahmedmansour @ gmail.com and I will send you the CAD files. Thanks
Very good video! May I ask how to set the porous jump? They doesn't show in the PEMFC Advanced tab
Hello dear Manuel, make sure you did not miss the "From new part" step in designmodeler. This is mandatory to be able to continue the named selection and give the porous jump name to the faces. Danke!
@@haveanicetime Thank you man!
Hello sir, I m learning on modelling fuel cell in Ansys. Can I ask for the 3d model?
You are welcome dear Mac, typeyour e-mail in with spaces to send the 3D CAD files to you. Danke!
What are the boundary conditions used here in this work
The video is very clear.
Sir , how the assembly of parts in design modeler is automatic , like when we import the model how it fits in its exact position
Hello, this was done at first by the CAD modeling software. Using the move command to take into consideration the distances and thicknesses of each part. You gotta learn that at first. Thanks
Hello sir with a little bit different geometry ı used the same settings as you in fluent. But ım keep getting floating point exception error. How can ı solve this
Something is not correct with the steps, geometry, meshing, or setup. send me a message to mech.eng.ahmedmansour@ gmail.com to send you the CAD files. Thanks
@Haveanicetime! Mesh display style body color option not available... What to do?
Please learn the basics of ANSYS at first to know how to solve these issues because the video is clear.
Will you please share me the dimensions of the cad figures, it will help me do the same with the exact dimension as you have done
Hello, send me email to mech.eng.ahmedmansour@ gmail.com
Thanks
hlo sir, i have a question. why r u running simulation only for 150 iterations? what if we keep it running for 2000 iterations, will it give same result?
Hello dear Avi, it depends on the convergence. If the simulation reaches the convergence and the solution does not change after a certain number of iterations, no need to consume time. Also, it depends on the residuals. The lower the residuals, the more time consumed. 0.001 consumes less time than 0.0001. Anyway, it depends on the change in the final results. You can run more iterations but if the convergence is reached, the software may stop automatically even if you set the iterations to a higher value. Danke!
Hi, thank you for sharing your tutorials.
I am performing some simple simulations with a single cell and a straight channel but the current density of the cathode falls to zero after few iterations. How can I face this issue? Thank you
Hello dear Maria, something is not correct with the geometry or meshing or the setup itself. amke sure that you are not using the free student version because it is missing lots of important features. Danke!
@@haveanicetime Thank you for your quick reply. I verified the geometry as well as I changed the mesh but this error still occurs. As regards setup, I followed several tutorials and I also studied the fluent theory guide. It would be very useful if we could discuss about it or if I could send you my simulation in order to have a little help. Thank you again
Type your email here.
Hello,I want to thank you for this video
how we can make polarization curve ?
Hello, I showed it in the video.
thanks for this amazing video , i have a problem : when i run the calculator , there is an error said : floating point exception , i didn't understand why ?
Yes, something wrong with the geometry, meshing, or the setup. You must follow the same procedure that was shown in the video.
Thanks
@@haveanicetime i don't have the same version as you .
Please do a video on using serpentine flow channel in pem
Hello, you can follow this procedure shown in the video and then get a paper related to the serpentine cooling and apply it and validate the results. You have to follow the video at first because the procedure is the same. Thanks
My graduation project is about SOFC fuel cell.
Do you have the geometry for it?
Thank you for your help.
Hello, send email to mech.eng.ahmedmansour@ gmail.com Thanks
Hi Sir, May I know how to get the results of voltage/ output in terms of power/energy? Highly appreciate your assistance.
Hello dear Uday, get research artciles and validate the results as they published. Thanks
Hello bro,
When I want to analyze, I encounter the following problem. I followed all the steps completely, but for some reason this problem occurs when I want to initialize. Do you have an idea? ''warning: It is highly likely that the Anode Collector and GDL are not connected!''
Hello dear Alperen, I have received your email. The issue originates for the mesh size and it affects convergence. I have shown that in the video. Thanks
Hello sir, thank you for your video, but my current density magnitude is very high like around 8A i can't find the problem, do you suspect anything that i should check, thank you.
Hello dear Mohammad, you are welcome. The values are mainly dependent on the geometry and the boundary conditions. Of course if your model is different than that shown in the video, the results are completely different. Danke!
Hello, I have Ansys Student Version. Is there the add-on module about PEM? If not, where can I find the add-on without paying the license? Thanks :)
Hello dear Giusy, I am not sure, try typing the script I showed in this video to see. Danke!
Hi Sir, when running the calculation, an error occurred showing floting point exemption. May I know how to resolve it.
Thank you
Hello dear Uday, something is missing in the geometry, meshing, or setup. Recheck again and make sure that you are not using the free student version because it is missing lots of features.
Thanks
@@haveanicetime Hi sir, thanks for your rply. Unfortunately I don't have access to licensed version so trying with cracked one. I have made lot many changes but still I am not able resolve the issue.
I can send you the CAD files I used, this is the only thing I can do for you.
@@haveanicetime Thanks for you response
.I have your files already shared. But when I am trying to creat a new design, I am getting this compilation errors. May be according to the modified design, operating conditions or boundary conditions should be redefined.
May I know the calculation part you have done for boundary conditions?
Your help is highly appreciated.
Dear sir,
I enjoyed your video very much. I have some problems need your help. What are the conditions for the problem to converge? and how is the meshing method for the results to be accurate?
Thank you for helping me.
Hello dear Huan, specify your issue please. Thanks
could please share with me the paper your are working on ?
Which paper?
How did you validate these output ? Experimental results?
Hello, as shown in the video, from ANSYS official video. Thanks
@@haveanicetimethanks very much
Hello, I would like to do that, I want to know the details of the geometry and all other required this details to carry out this simulation
Hello, the geometry details are found in "CFD simulation of PEM fuel cell performance: Effect of straight and
serpentine flow fields" and I showed the other things in the video. Danke!
@@haveanicetime ok thanks a lot❤
thank you so much for the video, but i got the problem, when i click to "calculation", the ansys simulation closed automatically, it didnot give results? can you help me
right after 47:24
@Huynh Nguyen Hello dear Huynh, you are welcome! It is because of an issue with the geoemtry, or meshing, or the setup. Danke!
@@haveanicetime great, I think that was geometry, I designed it myself. Could you give me the size information that you used in the video, and can I design the entire model by NX and open the model in ansys for simulation?
@@huynhnguyen4892 Type your e-mail here but with spaces and I am gonna send the CAD files I used. Danke!
Hi Sir, at the end of the calculation I have got an error: floating point exception. May I know what does it mean and what can be done to overcome it?
Thank you
Hellodear Uday, you have something not correct with the geometry, meshng or the setup...Danke!
@@haveanicetime Thanks for your immediate response. I have figured it out and now I am able to execute the calculation. But when trying get the vectors I am facing a different error as below.
CX.1920.exe has stopped working.
May I know what does it refers to?
@@udaykanthmummadi3191 Do you use the free student version?
@@haveanicetime Yes sir. I am currently using free version.
@@udaykanthmummadi3191 Well, it is missing some features and it is better to get the commercial or the full academic license. Danke!
congratulations on the video. I have a question. Have you ever tried to make a solid oxide electrolyzer? What changes in the setup?
Hello dear Giovanni, you're welcome! I never simulated it. You can get research articles and some references to know how to model it. Danke!
@@haveanicetime thank you!
Hello sir, I'm graduate student major in mechanical engineering. I use this PEMFC model too. I evaluate Springer's ion conductivity model formula. Do you change this formula or use the default value?
I would appreciate it if you could reply．
Hello dear, you're welcome! Could you please send me some details about your study to my e-mail to help you better? Here is the e-mail: mech.eng.ahmedmansour@gmail.com Danke!
@@haveanicetime Thank you for replying and sorry for my late replying. I will send you the details of my research.
@@pefc2433 Hello dear Shunsuke, received! Danke!
Hello sir which version of ansys is used here🤔
18.2 commercial
@@haveanicetime Thanks
Will it be possible to share the 3d model and meshing file with me?
Hello dear Ole, I only share the CAD files by e-mail: mech.eng.ahmedmansour@gmail.com ...Danke!
hello Deer, I'm really impressed with your work. I m learning to model fuel cell using Ansys. Can I ask for your 3d model please?
Hello, send me an email to mech.eng.ahmedmansour@ gmail.com Thanks
Sir I sent you an email.
Sir can u explain how to conduct grid independence study for this project
Simply study the basics of CFD from any reference or research articles. Thanks
Sir, during simulation after 3 or 4 iterations, the solver throws errors i.e. Cp value can not be calculated for H2...like this one. And one more errors divergence in udf. Can you tell me reasons and how to resolve those?
Hello dear Kshitij, something is not correct with the steps of the modeling starting from the geometry to the setup in Fluent. Check again what you have done, it may the mesh size or any missed step. Danke!
@@haveanicetime Ok sir.
Sir,
How you define distance between two bodies?
In my case its overlapping.
Hello dear Rohit, simply I calculated the distances and took them into consideration in Autodesk Inventor by using the move tool. Accordingly, when you import each layer, no overlapping occurs. Danke!
@@haveanicetime hi sir,
I designed it in solidworks software and also assembled it properly at calculated distance but it gives same issue
@@haveanicetime can you send me your inventor designed files
@@rohitniphade.7602 Send me an email to mech.eng.ahmedmansour@gmail.com
Sir how you given species mass fraction inlet for h2 is 0.6 and h2O is 0.4
I am not sure of your question but it is very clear in the video. Danke!
@@haveanicetime at 42:24 u have written species sir
@@grvishwaktej3232 I still do not understand. If you you mean how I activated that tab, I showed that step in the video. Danke!
Hello sir, can you tell me from where have you decided the cell parts dimensions if it is from any research paper kindly share the link, thank you!
Hello dear Prajwal, the paper is "CFD simulation of PEM fuel cell performance: Effect of straight and
serpentine flow fields" Danke!
@@haveanicetime can you please send the case file to me?
hello sir can i get the tutorial pdf, i need to go through the literature
Hello dear Bhupesh, you're welcome! What is the name of that pdf and type your e-mail but with spaces. Danke!
how about detecting divergent flow ?is it ok ?
I am sorry I do not understand.
@@haveanicetime for tab c electric potential value 0.3 and under also 0.8 and 0.9, I got: floating point exception errors
any guidance ?
I think you gotta review your geometry, meshing, and setup again because if you missed any step, you never run the simulation smoothly. Thanks
Hi, nice tutorial. Is it okay for me to ask where can I get the add-on module without buying the software? I need to read it
Hello dear N. type your e-mail here and I will send it. Danke!
@@Sueze Hello dear Yanahae, you are very much welcome! Check out your e-mail. Danke!
@@haveanicetime Hello, thank you for your excellent tutorial, I am also studying SOFC, I also want to ask for the add-on module for free, can you send it to me?
@@庄桓鑫 Hello, wolud you send me an e-mail to mech.eng.ahmedmansour@gmail.com ? Danke!
Hello, sir
Do you know any straight forward article for validation?
Hello dear Mohammad, yes, it is "CFD simulation of PEM fuel cell performance: Effect of straight and
serpentine flow fields" Danke!
Thanks
hello. i am seoultech univ. mechanical engineering student.
I don't understand why my "cooling channel PEM file" has a floating error.
would you please check my file? I'm so hard..;;;
Hello dear, type your e-mail her and I am gonna send the CAD files of the tutorial to follow the steps again. Danke!
How to get convergen in this simulation?
Hello dear Almaas, the simulation is very sensetive as I mentioned in the video. You must prepare the geometry very well and test many mesh sizes until you reach no errors or divergence. Thanks
Sir I tried doing this but I get floating point exception error Everytime. Till initialisation everything looks fine but at last floating point exceptionerror comes.
Please help me bro
Something is not correct with the procedure you followed. Danke!
Why i get error : floating point exception ini simulation?
Something is not correct with any step during the process.
@@haveanicetime I think its about teh mesh. In ansys 2020 there is no relevance center option
@@almaasalfy6041 If it is the student version, it is missing some features. It is better to use the commercial version or older versions than 20's. Danke!
sir you have done any video on SOFC?
Hello dear G, no, you can check out the research articles and the add on modules document for more information about its modeling methods. Danke!
@@haveanicetime but you have done great PEMFC modelling if it is possible do SOFC sir thank you
@@grvishwaktej3232 Hello, simply get the information like I said and follow the procedure of this tutorial and use the SOFC module not the PEM module. You must give a try. Danke!
Hi there i keep getting this error after naming the various parts in the mesh. Following your steps in the tutorial video, i observed that you assigned 2 names for one specific part of the cathode channel (tab - a and outlet - cathode). The error message i get is ''The mesh file exporter does not support overlapping geometry in named selections. Please resolve the issue and try again.'' Please how come you never had this error in your simulation having named the outlet cathode channel as tab - a please.
Hello dear Willy, I did not do this, each named selection must be unique and only for one face. You thought that I used the same face for 2 named selection and this is not correct. Each time I name a face, I choose the face and give it a unique name. Only watch the green face I select and I guess you focused on the red one too and this is the source of your problem. At 25:30, I selected the top face giving it the name tab_a and you noticed the red which I did not touch until I named it as outlet_cathode.We can select many faces for one named selection but we cannot name different named selections for one face. Danke!
@@haveanicetime hahahaahaha. i get it now. Many thanks for your swift response.
@@willywilberforce5492 HAHAHAHAHAHA :D :D :D Well done! Always follow the mouse pointer. Viel Erfolg!
Hello very nice explanation. If possible will you please send me those add on modules. I'm learning ANSYS.
Hello dear Shivam, you're welcome! Send me an e-mail to mech.eng.ahmedmansour@gmail.com Danke!
Hello sir
Can you send me the file
Sir during calculation of single cell fuel cell, i am getting floating point error. Can you guide me how to resolve this? Its much needed.
Hello dear TJ, it is better to use the files I used to learn the correct procedure. Type your e-mail here. Danke!
@@haveanicetime tjsinghtj@gmail.com
Check out your e-mail. Danke!
@@haveanicetime Hello sir, can you send me the files to me please. my email: tarun.geetar999@gmail.com Thanks in advance
@@tarungeetar9812 Hello dear Tarun, you are welcome! Check out your e-mail. Danke!
hi sir ,thanks for the video,i want to ask you,my graduation thesis is about producing hydrogen from water splitting and i need to design a reactor by ansys Fluent for this purpose ,what shall i do ,thank you for your help
Hello dear Ichrak, you are welcome! Simply you must do a deep literature review and see the recent studies about it and how they simulate the process, then you know. Danke!
@@haveanicetime thank you, i just wanted to know is the PEM electrolysis cell is different comparing to what have you done in this video ?can this video be suffisant for a hydrogen production only?
The fuell cell is used to produce hydrogen to use as fuell. In the same time, oxygen is produced and you may use it for other purposes. Danke!
@@haveanicetime thank you very much ,i have done the same work here but i drew it with solidworks because i didn't figure out how to do it with design modeler ,but there is a problem in the calculation,it tells me that i have it cannot converge "Divergence detected in AMG Solver",what shall i do please
You missed something. The geometry must be handled as I showed in the video. Missing any single step or not refining the mesh causes this issue. Danke!
Hlo sir, firstly will appreciate for your effort and the doubt I got is are you not going to add the material in engineering data
Hello dear Jangam, I am sorry, I do not understand.
great video
Hello, I have received your e-mail, thank you and I am gonna reply. Danke!
Hello Sir, can we make simulation for dry cell electrolysis? If yes, could you please show me a video? Thank you.
Hello dear Qhu, simply get research articles and see how to model this type of fuel cells. Then we know how to do it. Danke!
@@haveanicetime Thank you for your reply. Actually, I couldn't find clear information how to simulate it. Could you please share any document or example related with the dry cell? qu58phy@gmail.com
@@qhuphyy1001 www.google.com/search?ei=0RKpX-2bGfOX1fAP1Jin8AM&q=dry+cell+battery+sciencedirect&oq=dry+cell+battery+sciencedirect&gs_lcp=CgZwc3ktYWIQAzIHCCEQChCgAToECAAQEzoICAAQFhAeEBM6CAghEBYQHRAeOgUIIRCgAToECCEQFVChP1ibVmC_V2gAcAB4AIABkQKIAdATkgEFMC41LjeYAQCgAQGqAQdnd3Mtd2l6wAEB&sclient=psy-ab&ved=0ahUKEwityI_bmfXsAhXzSxUIHVTMCT4Q4dUDCA0&uact=5
And search on researchgate.net, academia.edu
hye and cogratulations on the video, but can you help me in drawing the model?
I can send you the CAD files byemail...mech.eng.ahmedmansour@gmail.com
Hello Sir,
The video was very helpful.
I have 2 question please ;
1. - The mixture composition should be indicated by given mass fraction of both H2 in anode channel and O2 in cathode channel as well as the composition of water flow with in the PEMFC system, particularly through different cathode layers
2. Gas flow is co current flow or counter current.
Hello dear Mohamed, as shown in the video, the flow rate is consisted of water and oxygen from a side, and water and hydrogyn from the opposite side giving the mass flow rate and the species.
It is better to make a literature review about the fuel cells and get some references of fundamentals to understand the physics of them. Danke!
I am facing a problem while calculating., It says "floating point error". please help me.
Hello dear Akash, something is not correct with the procedure you have followed. The geometry, mesh, or fluent setup have issues. Danke!
@@haveanicetime solved... I reduced number of meshes..
@@akashsinha5715 Good dear Akash, I mentioned something like this in the video. The simulation is very sensitive. Danke!
@@haveanicetime Error at Node 2: Dot product of flow direction and area normal is zero.
Check the specified flow direction on Mass Flow Inlet boundary
conditions for thread 81.
I am getting this error during stack part. I successfully completed the 1st part but getting above error in 2nd part of the tutorial (during stack). Please help me.
@@akashsinha5715 Hello dear Akash, something is not correct with the geometry, mesh or the setup like I said before. As you see, I assured on the complexity of the simulation and its sensitivity. Make 100% sure of following every step and carry out a mesh test. Also the boundary conditions must be suitable for the model's dimensions. Danke!
when I run calculation my fluent shutting down suddenly , plz help
Hello dear Roshan, something is not correct with any step of the procedure. As I said, it is a very complex and sensetive simulation. Danke!
@@haveanicetime i take velocity in inlet at boundary condition . is it fine?
@@roshankumarparihar6104 The boundary conditions must be realistic and suitable for the gemoetry and based upon experiments or analytical estimations. Danke!
Can you please share the ansys file
I only share the CAD files on mech.eng.ahmedmansour@ gmail. com Thanks
Can I get the cad file of geometry
Send an email to mech.eng.ahmedmansour@gmail.com Thanks
Sir thank you for this tutorial. I'm doing my graduation and I'm working on PEM fuel cell simulations, doing the same project. From past few days I'm doing my best but I'm unable to naming the porous jump because the GDL part is not divided into three parts. It will be very helpful if you share Mesh file with me.
thank you.
Check out your email. Thanks
Sir thank you for the reply 🥺🙏
Please make a video on direct methanol fuel cell
Hello, this video shows the idea of the PEMFC. It is enough to see other types of fuel cells and use other options in the module or see other modules if available in ANSYS to model your design. I only make videos about things that have modules or clear references from ANSYS. Danke!
Can i get the CAD files plz
Send an email to mech.eng.ahmedmansour@gmail.com
Hello Sir! Can you please provide me the 3D Model to try the steps too?As it will help me in my studies and my graduation project.Thank you!
Hello dear Hamza, your're welcome but type your e-mail here. Danke!
Hello sir, first of all, thank you for this useful tutorial. Although I do the same steps as you, I get different results. Can you write the all dimensions of the cell you are working on in the video? Maybe that's why the difference is.
Hello dear Burak, you're welcome! send me an email to mech.eng.ahmedmansour@gmail. com and I am gonna send you the CAD files. Danke!
hello bro I am also working on BTMS system for evs for my college project can you help me with that on how to performe simulation on Solidworks or ansys plese help me on simulation part brother
Hello, if you mean battery thermal management, I have a full tutorial about it. Danke!
شكرا الاح احمد شكرا جزيلا على الفيديو . اود الحصول على كاد حاولت ثعث لك ايميل لكن للاسف لم اتمكن من ارساله
Hello dear, I have just sent the files, I received 2 emails from you. Check out your email. Thanks
@@haveanicetime Thanks Sir
Hello sir, can you provide me 3d model to try the steps? thank you.
Hello dear Kshitij, type your e-mail here please. Danke!
@@haveanicetime kshitij12bhosale@gmail.com
@@kshitijbhosale8364 Thanks, check out your e-mail. Danke!
@@haveanicetime Thank you sir
Hi
Thanks for the video
Can you send me the cad file please, it will be very helpful
Hello dear Saicharan, you are welcome but type your e-mail. Danke!
@@haveanicetime thanks for the reply, my email saicharanmuthoju@gmail.com
Check out your e-mail. Danke!
@@haveanicetime can I also have a copy of the cad file please? :) ichandlssnts@gmail.com
Hello,why my comment is deleted everytime ?
can you give your email ?
Hello, TH-cam does not allow the comments that have e-mails from the subscribers to avoid issues. Hoever, I saw your notification and sent the files to the e-mail. Danke!
When somebody types an e-mail here, it is better to make it like this: username@ gmail .com (Use spaces)
Assalamün Aleyküm bro thank you very much for this unique video. pls help me how can i get the curve (Volt-current density (A/cm^2) )in this program.
Hello dear Hümmet, you are welcome! Simply I mentioned that in the video. Danke!
@@haveanicetime I tried but couldn't. Could you briefly tell me about that, please? This is very important for me.
@@haveanicetime Please tell me step by step I'll be grateful to you:
@@hummetsahin5725 I clearly showed how to put the cell voltage and then get the current density.
@@haveanicetime Yes you showed the current density Thank you very much but i mean polarization curve (The Graph)
Hello Sir,
The video was very helpful.
Could you please send me the cad file
Edit: Sir, Thanks a lot for sending those files.
Hello dear Robin, you are welcome! Check out your e-mail. Danke!
@@haveanicetime Thank you Sir
@@haveanicetime can I also have a copy of the cad file please? :) ichandlssnts@gmail.com
Hello dear Ichan, I have not received any notifications after you posted your reply here. I have just seen it manually. Do you still wanna the files? Danke!
Sir, a great help! Can u send it to me? thanks
I’m learning the air flow field in PEMFC’cathode side recently. really need the simulation model. Could u send the file to me? my email address :joejoejoe523joe@gmail.com
Hello dear Mcgrady, you are welcome! Check out your e-mail. Danke!
@@haveanicetime Hi sir, could you send the files to me too? my email is rafirahman226@gmail.com
Hello dear Rafi, check out your e-mail. Danke!
@@haveanicetime Hi sir, could you send the files and documentation to me? my email is cosmi.mattia@gmail.com
I sent you email requesting dimensions but no reply
I am gonna check it out! Thanks
@@haveanicetime received..thank you very much
Dear Sir,
Thank you so much for the video. Can you please share the CAD file and also tell the dimensions used for cooling channels,It will be great help🙏🏻
Hello dear Om, you're welcome! Kindly send an e-mail to mech.eng.ahmedmansour@gmail.com...Danke!
@Om Urkande bro can u please share me the CAD files what he have send...
I really want them please help me out
Hello,thank you for this video
I willbe thankful if you send me the project
You are welcome, type your e-mail here. Danke!
helo sir, could I ask some question? because I hve final assignment about this PEMFC in Ansys sir.
If can, maybe I can contact you via email or whatsapp.
Thank You in advance.
Hello dear, send me email : mech.eng.ahmedmansour@ gmail.com Thanks
Will it be possible to share the 3d model and meshing file with me?
Shared by email..thanks!
@@haveanicetime can you share with me too?
Hello, send me email to mech.eng.ahmedmansour@ gmail.com@@whoiskami
Hello sir
Even though I followed every step perfectly I am getting ( ERROR : FLOATING POINT EXCEPTION ) I hav tried so many times getting the same error . Can u please help me with that
Hello dear K, something is not correct with the geometry or the mesh size or with the setup. Check out each stage especially the mesh size, change it until you get no errors as I mentioned. Danke!
Can you please send me the geometry for fuel cell with cooling
@@kgautamsriram258 Send me an e-mail to mech.eng.ahmedmansour@gmail.com Danke!