It was definitely a very explanatory video. We would like to see a presentation where the fittings connection rules are explained in more detail with SMACNA and ASHRAE references.
Thanks for your compliment. I think what you’re looking for is here: th-cam.com/video/NWyP7LuAaao/w-d-xo.html where I explain the duct static pressure calculation with all the fittings referenced back to ASHRAE. If you've watch it before and still need more depth in the fitting connection rules (which I understand can be confusing), I'm releasing a duct design course that will go into details about the fitting connections. You may consider subscribing to my newsletter on course.aircondlounge.com as the new course will be released on that platform.
hello thanks for your comment. Iwill be following the website for the course. I watched the other video you shared and it was very explanatory. there I am not talking about finding the Co values for each fitting. what I want to talk about is: the rules for connecting fittings to each other for all types of ducts, the maximum permitted dimensions in ashrae and other standards for all fittings and connection types.
I think the dimension of duct fittings can be anything but it is best to stay within what have been tested out for the Co value for static pressure calculation. ASHRAE Duct Fitting Database (DFDB) so far has the most combination of different dimensions and types of fittings.
Hope you could show examples for the other two methods in duct sizing:- static regain and constant velocity. Do like to share this 'equal friction method' video please.
We need to decrease the height according to cfm. However, watch out as you need to leave enough height if you’re going to tap out a collar for the flexible duct.
How was the video, is it too fast?
Thanks a lot for this..... God bless you
thank you for making this video
It was definitely a very explanatory video. We would like to see a presentation where the fittings connection rules are explained in more detail with SMACNA and ASHRAE references.
Thanks for your compliment. I think what you’re looking for is here: th-cam.com/video/NWyP7LuAaao/w-d-xo.html where I explain the duct static pressure calculation with all the fittings referenced back to ASHRAE. If you've watch it before and still need more depth in the fitting connection rules (which I understand can be confusing), I'm releasing a duct design course that will go into details about the fitting connections. You may consider subscribing to my newsletter on course.aircondlounge.com as the new course will be released on that platform.
hello thanks for your comment. Iwill be following the website for the course.
I watched the other video you shared and it was very explanatory. there I am not talking about finding the Co values for each fitting. what I want to talk about is: the rules for connecting fittings to each other for all types of ducts, the maximum permitted dimensions in ashrae and other standards for all fittings and connection types.
I think the dimension of duct fittings can be anything but it is best to stay within what have been tested out for the Co value for static pressure calculation. ASHRAE Duct Fitting Database (DFDB) so far has the most combination of different dimensions and types of fittings.
Thank you for taking the time to make this presentation 👍🏽
Anytime
Could you provide us with an excel sheet log of Ashre and Smanca codes if you have one please
Thank you
Great content, thanks sir.
No problem.
Hope you could show examples for the other two methods in duct sizing:- static regain and constant velocity. Do like to share this 'equal friction method' video please.
Will put this on my list.
is height of the duct same in everyroom if the height of the ceiling is same in every room.Or do we need to decrease the height according to cfm
We need to decrease the height according to cfm. However, watch out as you need to leave enough height if you’re going to tap out a collar for the flexible duct.