Porous Media Condensing Heat Exchanger with Integral Gas Liquid Separation for Space Flight Use
Existing condensing heat exchangers utilized to condition cabin air in space vehicles and/or stations have two major obstacles to overcome. First, they must be over designed to deal with the inefficient heat transfer due to the formation of condensate file and second, additional dynamic hardware must be used to separate the condensed water vapor from the non-condensable gases in air. This paper deals with new design strategies and compares one version of a proposed porous media heat exchanger to an existing temperature and humidity control system and demonstrates a reduction in mass, volume, and power consumption of the concept. A decoupled solution based on an author's modified N(tu) effectiveness method and a Reynolds analogy mass transfer calculation is proposed to simplify the sizing of the required surface for heat and mass transfer.
44th AIAA Aerospace Sciences Meeting and Exhibit
Althausen, D. M., Quinn, Jr., F. D., Bunnell, C. T., & Daidzic, N. E. (2006, January 9-12). Porous media condensing heat exchanger with integral gas liquid separate for space flight use [Conference paper]. 44th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV. https://doi.org/10.2514/6.2006-1337
Publisher's Copyright and Source
Copyright © 2006 American Institute of Aeronautics and Astronautics, Inc.