Sensible and Latent Heat Transfer in Cross-Counterflow Gas-To-Gas Heat Exchangers

[+] Author and Article Information
R. B. Holmberg

Fläkt Evaporator AB, S-551 84 Jönköping, Sweden

J. Heat Transfer 111(1), 173-177 (Feb 01, 1989) (5 pages) doi:10.1115/1.3250640 History: Received October 15, 1987; Online October 20, 2009


Simultaneous heat and mass transfer during condensation in cross-counterflow gas-to-gas heat exchangers has been analyzed. The coupled heat and mass transfer equations are derived for boundary-layer controlled heat and mass transfer and include longitudinal heat conduction in the exchanger wall. A numerical method of the finite-difference type is applied to the steady-state performance. Temperature and absolute humidity distributions are calculated for exchanger parameters that are typical in air conditioning systems. Temperature and humidity efficiencies together with frosting limits are evaluated for different inlet air conditions.

Copyright © 1989 by ASME
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