Understanding Thermal Radiation
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- เผยแพร่เมื่อ 29 พ.ย. 2021
- Get access to my bonus video Understanding Dimensional Analysis on Nebula - nebula.tv/videos/the-efficien....
In this video we'll take a look at thermal radiation, one of the three modes of heat transfer along with conduction and convection. We'll start by covering electromagnetic waves, the Stefan-Boltzmann law, black bodies and emissive power. We'll then talk about emissivity, absorptivity, transmissivity and reflectivity, as well as view factors, all key concepts for being able to calcualate the radiative heat transfer between surfaces.
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The Efficient Engineer is a channel aimed at mechanical and civil engineers. The mission is to simplify engineering concepts, one video at a time!Follow me on Twitter: / efficiengineer---if you would like to support the channel, please consider becoming a Patron - / efficientengineer . This will allow me to create more high quality videos covering a range of engineering topics.
Thanks for watching! Remember you can catch the bonus video Understanding Dimensional Analysis over on Nebula - nebula.tv/videos/the-efficient-engineer-understanding-dimensional-analysis.
I like your videos very much...they help so much to get strong concepts.
@The Efficient Engineer What software do you use to make the videos?
Where is your next video? I hope it's engineering drawings.
Have you stopped making videos for this channel??
Nope! Next video on Tuesday!
Its unbelivable how these videos drop just at the instant you need them. Thank you so much!!!
I can't express how true you are 😱
Even I also needed this video today only !
'Cause today my teacher delivered an intro lecture to Thermal Radiations and Blackbody.
And asked us to prepare for them in advance.
Mic
That's because you count the hits and not the misses :-) For hundred videos that didn't drop just right you picked the one that did. It's normal we all do that - brain is basically a discriminative detector with oversensitivity to certain features (e.g. faces).
@@LiborTinka But it’s very consistently perfectly timed for this channel’s videos, and he doesn’t have hundreds of videos, could be because they are releasing videos based on a common engineering curriculum
Exactly dude I was in between ch of radiation it’s at the right place at the right time
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i've never questioned why hot object tend to emit visible light.
One of my favorite TH-camrs ever. His videos cover essential topics in short time without leaving out important aspects of it.
You are an absolute godsend to all engineering students as 3blue1brown is to the mathematics community. These videos give the perfect overview for concepts that are initially hard to grasp with amazing animation and clear explanations.
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Your videos are always a life saver come exam time. It's remarkable that you're able to explain these complex concepts better in 17 minutes than most professors can in weeks of lectures. Thank you!!
You should take classes from better professors
Your visuals makes it easier for us to understand. Thanks 🙏
Whenever I watch ur channel, I feel like why the heck did I not find u during my college.
What i find really ironic, is that this channel seems to upload the exact topics I'm covering in my classes as they go up. I just got to the radiation portion of my heat transfer class last week.
You deserve a million subscribers man. Before going to the nitty gritty, watching your videos for the overview always helps
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Thank you
Nice video and well explained. I wish this had been available back in the stone age when I was learning this.
Also, I wish there was a way to give a "thumbs up" & comments for your Nebula videos like the "Understanding Dimensional Analysis" video you mentioned -- it's quite good. I remember learning & using it a lot in college and at work too.
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one of the most pleasent animated videos I 've ever seen, as an electrical engineer, i'm not very familiar with transfer heat concepts, but your video made it all very clear! amazing!
I haven't felt the same about heat since I learned that it was an electromagnetic wave. And I thought it was heat. It just doesn't feel the same anymore.
@@melaniecotterell8263 Heat can be transferred in primarily 3 ways Conduction, Convection and Radiation and in Radiation only it is transferred as an EM wave and in other two cases it is different.
This video really cleared my concepts. A heartiest thanks to the team members of this channel.
I have no words to describe how good this video was. This channel is an absolute 💎 . Thankyou 💟
As always this channel releases video's on the exact topic i am currently studying days before finals. Great content!
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Our successors are going to be so much lucky, we aren't less tho.
Even you don't know how much easy u make the topic understandable. Please never stop uploading new topics
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I love how you leave room for the information to seep in before moving on 👌.
Finally more thermodynamics, thank you!
I wanted to learn 'what a blackbody is' when I clicked on this video. This video blew my mind away & I enjoyed every second of it. And oh yes, I also found the answer to my question
You're a beautiful teacher of principles and content, thank you
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Such a great video. The concepts are explained from the ground . Thanks
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This Video is One of the Best Pieces of
Actual Content I have Watched. 😊👍🏽
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Clear and concise. Not rushed.
I like it.
Another MASTERPIECE educational video from this channel. Thank you.
Whoever made animations for this video did a great job.
Best animated video on thermal radiation with proper explanation. Thanks a lot.
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Great video. Coincidentally started to review radiation for my thesis today. Came in as a great motivator :)
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Just as I'm working on a thermal radiation problem. This helped me visualize this topic so well. Thank you!
There are extra blankets in the closet. Visualizing warmth will not make you any warmer. NFW.
thank you for this great video!!! helped me so much
Thank you. This is a bit advanced for me in high school but i didnt understand my book. This helped make my understanding deeper. I like this
I wax studying heat transfer by radiation from text book.... It took me 2 days to complete the chapter with still unclear concepts .... You made the video on the exact time and cleared all concepts in 15 mins... Beautiful... 💖💖💖💎💎💎💐💐💐.... I will be very thankful to you if ypu post ypur video of dimensional analysis here on TH-cam... Please we need it badly...
Great way of explanation
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Thank you for this video!
This was another great video. It would be cool if you could cover convection and conduction as well:)
Thank for great video of heat transfer by radiation.
Excellent Teaching. Pleasing colors. Brilliant animation. Simply awesome ❤️
This colors... this animations... PERFECT!!
Thnx a tonne! I was learning this from Bk Dutta and was finding it very difficult to visualize. You've saved my life!!
loved it!
WHAT! I have an exam on this soon. What a good timing!
You make amazing content. I would love to see a video about free body diagrams of complicated scenarios.
Amazing work
Truly a great video like always.
Thanks a lot for good informative video for us,
This is basically a nice video summary of the radiation chapter in incropera fundamentals of heat and mass transfer 😅Very usefull!!
A great feeling to learn physics... thank you for the team...
As always superb. Can you please make video on acceleration and velocity analysis of mechanisms.
Love the videos. Can you do something with geotechnical engineering (theory of earth pressure, etc.)?
Thanks for this video! This gets more complicated when you have to account for luminescence and it's options of other electron related light emission.
If you're accounting for luminescense you may be cutting things a bit too close. Give yourself enough margin so you don't have to worry about that shit. When it crashes I'd hate to be the one who miscalculated the luminescense. Poor pilot didn't have enough light to navigate around the obstacles. Too much luminescense will get you a headlight ticket. Always best just to go stealth when space truckin'. Look at those stars.
What a coincidence, I just decided to learn about Quantum mechanics for fun, and this video is uploaded within hours, the graphics are so beautiful too!
perfect heat transfer explanation...hope more elaboration with thermal/cold bridge..conductivity...big thanks
Greate,well explained ,thanks
Awesome 👍. Very detailed
Really nice and well explained video. Kindly make one video on radiation with participating medium.
Awesome video as always! Thank you so much for this great work!
I would just precise that the EM wave do not only follow straight lines within mediums, which explains mirages for instance. And that there is at least a fourth way the heat can be transfered between objects, which is by being carried along within moving matter : transportation.
"by being carried along within moving matter : transportation"
also known as 'convection'
@@darylh8657 I meant solid matter . I think convection is a term only used for fluids. For instance an ablative thermal protection on a re-entry vehicle. Small solid bits would detach, moving the heat they carry away from the spacecraft.
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Amazing Amazing Amazing work, Bravo!
well explained!
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Great explanation
Please do a video on explaining more fluid mechanics concepts..Where one need visual explanation for clarity about the topic.
Hope you do ❤️
so useful
Very good video. Could you cover up more topics on heat transfer?
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Great animation bro
Can we have an amazing video just like this on convection?
Very nice explanation sir
Thank you very much sir🥳🥳🥳🥳
Please do some videos on Fluid Mechanics.
Please make video on convective heat transfer also.
It sucks that this channel didn't exist when I was in school. Else I probably would be an engineer by now. lol
Great channel, keep it up.
Well explain thank you
very informative