Recording contact resistance between the tube surface and fin collar in tube-plate heat exchanger designs for cold supply and conditioning systems

UDC 621.565.9.045

Recording contact resistance between the tube surface and fin collar in tube-plate heat exchanger designs for cold supply and conditioning systems

Kozhevnikova E.V., A.L.Yemelyanov, T.A. Lopatkina


Abstract
The authors examine the effect of thermal resistance on the results of researching the heat transfer coefficient for air and the ways of its recording. Equations and experimental numerical values of contact resistance are presented for weak and continuous condensate formation at contacts between fins and tubes.

Keywords: heat exchanger, heat transfer, fin, tube, thermal resistance, contact.


Read the full article