Forced Convection: Heat Transfer & Air Velocity

[masterkeith]

Hi everyone,
Ive come here not for an answer but to see if anyone can point me in the direction of a published book or equivilent to help me with some simple convection ideas.

Im looking to basically outline the relationship between air velocity and heat in a forced convection situation. Its to do with computers so for example...

A CPU produces a constant 30W of heat with an airflow of 1.18 m/s. An increase in air velocity to 2.36m/s will incure a heat reduction of **W. Excuse the rather basic ideas here but this is alittle side project to an acoustics assignment.

Anyone got any ideas of books which might show me some relevant equations? I have had a look at a few but can't find much to help me.

Thanks

masterkeith

 

[anathema]

Hello masterkeith,

Thank you for reaching out to the community for help with your convection project. I suggest looking into the book "Convection Heat Transfer" by Adrian Bejan and William Jones. This book covers the fundamentals of convection and includes equations and examples for forced convection situations. Another helpful resource could be "Introduction to Heat Transfer" by Frank P. Incropera and David P. DeWitt, which also covers convection in detail. Additionally, there are many online resources available that provide equations and examples for convection, such as engineeringtoolbox.com or khanacademy.org.

When it comes to your specific scenario with a CPU and varying air velocities, the equation you will need is the convective heat transfer coefficient equation, which takes into account the air velocity, temperature difference, and surface area. You can then use this coefficient to calculate the heat transfer rate and determine the change in heat with different air velocities. I hope this helps and good luck with your project!

 

[m2003]

I can recommend a few resources that may help you understand the relationship between air velocity and heat transfer in forced convection. One useful book is "Convective Heat and Mass Transfer" by W.M. Kays and M.E. Crawford, which covers the basic principles and equations of convection. Another helpful resource is the Handbook of Heat Transfer by Warren M. Rohsenow, James P. Hartnett, and Young I. Cho, which includes detailed information on forced convection and equations for calculating heat transfer coefficients. Additionally, you may want to consult journal articles in the field of heat transfer and fluid mechanics for more specific information on the relationship between air velocity and heat transfer in forced convection. I hope this helps and good luck with your project!