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Development of a hybrid chemical/mechanical heat pumpThe authors present the current development status of a hybrid chemical/mechanical heat pump for low-lift applications. The heat pump provides electronics cooling by evaporating a pure refrigerant from an absorbent/refrigerant mixture in a generator/cold plate. The current development focused on evaluation of absorbent/refrigerant pairs, corrosion testing, pump and compressor design, and electronic cold plate design. Two cycle configurations were considered. The first configuration utilized a standard mechanical compressor and pump. The second cycle configuration investigated pumps and compressors with non-moving parts. An innovative generator/cold plate design is also presented. The development to date shows that this cycle has about the same performance as standard vapor compression heat pumps with standard refrigerants but may have some performance and reliability advantages over vapor compression heat pumps.
Document ID
19920068047
Document Type
Conference Paper
Authors
Grzyll, Lawrence R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Silvestri, John J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Scaringe, Robert P. (Mainstream Engineering Corp. Rockledge, FL, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
FLUID MECHANICS AND HEAT TRANSFER
Meeting Information
IECEC ''91: Intersociety Energy Conversion Engineering Conference(Boston, MA)
Distribution Limits
Public
Copyright
Other