Investigation of combined heat and mass transfer from a wet heat exchanger. Part 1: Formulation of an approximate heat/mass transfer model for calculating the performance of heat exchangers in dry/wet operation
Abstract
An approximate analytical model that may be used to calculate the rates of heat transfer and evaporation from the surface of a wet finned heat exchanger is described. The model is analogous to the conventional expression for convective heat transfer. The driving potential, however, is an enthalpy difference instead of a temperature difference. The overall heat transfer coefficient can be computed in the usual manner using a simple transformation of variables. The value of the model is that wet heat exchanger performance can be estimated accurately using dry performance data.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 August 1982
 Bibcode:
 1982STIN...8335332K
 Keywords:

 Evaporation;
 Fins;
 Heat Exchangers;
 Heat Transfer;
 Liquids;
 Energy Transfer;
 Fluids;
 Mass Transfer;
 Mathematical Models;
 Phase Transformations;
 Fluid Mechanics and Heat Transfer