Simulation Model and Study of Hydrocarbon Refrigerants for Residential Heat Pump Systems.
Simulation Model and Study of Hydrocarbon Refrigerants
for Residential Heat Pump Systems.
Domanski, P. A.; Didion, D. A.; Mulroy, W. J.; Parise,
Proceedings of a Conference on New Applications of
Natural Working Fluids in Refrigeration and Air
Conditioning. May 10-13, 1994, Hanover, Germany, 1994.
refrigerants; hydrocarbons; heat pumps; temperature
differences; transport properties; verification;
To conduct a systematic study of Natural Fluids as
working fluids for heat pumping applications, it was
necessary for NIST to simultaneously expand its
analytical tools and evaluate what design changes
American industry would most readily accept. The
problem was approached by categorizing all potential
working fluids into one of three vapor pressure groups -
high, intermediate, and low - and evaluating
disadvantages presented by each category. The
intermediate group spans the range covered by the CFCs
that have been traditionally used (i.e., R-502 to R-11).
An example of the high and low-pressure refrigerants are
CO2 and H2O, respectively.