CONTAMINANT FREEZE-OUT IN HEAT EXCHANGERS VOLUME II - BASIC INVESTIGATION OF CONTAMINANT FREEZE-OUT TECHNICAL REPORT NO. ASD-TDR-63-508, VOLUME II

摘要

We have conducted an analytical and experimental study to investigate the principal mechanisms of water and carbon dioxide freeze-out and to develop a method for predicting the effects of contaminant freeze-out. On heat exchanger performance. This program has included an analytical study of the various mechanisms by which contaminant freeze-out may occur. A test facility was constructed having the capability of simulating a wide range of air stream pressures, temperatures, mass flow, and concentration conditions. A glass-walled test heat transfer section allowed visual and photographic observations of the frost formation as well as measurements of its effects on heat transfer and pressure drop. Based on the analytical and experimental results, the importance of the various mechanisms of contaminant freeze-out has been evaluated and a method generated for predicting the effect of contaminant freeze-out on heat exchanger performance.