The Art of Cooling: Understanding Airflow Dynamics in Cross-Flow Heat Exchangers

In this video we have a look at what causes the pressure loss as air flows through a cross flow heat exchanger
Check out out website here fastandnerdy.b...

[@fredfred-k4k]

Great video, really informative

[@thefastandthenerdy]

Glad you enjoyed it

[@videosourceonebusinessacco5438]

No doubt...I have just replaced a Mercedes radiator in a CL55, and debated the replacement of some aging ducting...of the limited information found this is the most technical and the formulas allow me to understand how and what to go after...gold star to you sir!

[@thefastandthenerdy]

Thanks a lot!

[@stonehermo6531]

Good job explaining it. To anyone trying to learn more about these kinds of things, look into the books "Compact Heat Exchangers" by Kays and London as well as just a basic heat transfer textbook like "introduction to heat transfer" by Bergmann, Lavine, and DeWitt. Those textboks have helped a lot with figuring out fine details in this topic for FSAE designs

[@thefastandthenerdy]

Thanks, some really good book recommendations

[@johnkim3858]

Wow, talk about an underappreciated channel. Thank you for all the information you put out. I hope your channel gets viral soon. ^^

[@thefastandthenerdy]

Wow! Thanks mate

[@alexanderklenk2195]

I understand the perspective you are coming from and you obviously understand the concepts very well but I'm a little uneasy about saying that static pressure drop is inherently a good thing. For two radiators that are otherwise equivalent the one with a lower pressure drop (at a fixed test condition) will be superior.

[@oliversantos9331]

Hello! Awesome explanation. I just want to ask what exactly is the A_wall? The one shown at around the 2:30 mark?

[@thefastandthenerdy]

Thanks! The A_wall is part of the hydraulic diameter equation (Dh), A_core is the area within the radiator that the air is passing through whilst A_wall os the total area all of the air is flowing through. Or to put it another way, the A_core is the area within one section of fins whilst A_wall is the area of the ducting on either side of the radiator.