DV-80-07-4 -- The Effects of Air Flow Maldistributions on Air-to-Refrigerant Heat Exchanger Performance

Conference Proceeding by ASHRAE, 1980

T.J. Fagan, Jr.

Full Description

The effects of parabolic linear and step air flow maldistributions (nonuniform coil face velocities) of various magnitudes on the capacity of typical single and multi-row plate fin condensers and evaporators were considered analytically. The results indicate that for maldistributions exceeding 50% of the average coil face velocity the capacity reduction can be significant. In evaporator coils the percent loss in latent capacity is greater than the percent loss in total capacity.

Citation: Symposium, ASHRAE Transactions, Volume 86, Part 2, Denver, Colorado