Vapor Compression Heat Pump Cycle With Desorber/Absorber Heat Exchange.
Vapor Compression Heat Pump Cycle With Desorber/Absorber
Heat Exchange.
(2866 K)
Radermacher, R.
International Congress on Refrigeration, 18th.
Proceedings. August 1987, Vienna, Austria, 1987.
Sponsor:
Department of Energy, Washington, DC
Keywords:
heat pumps; heat transfer; vapor compression;
temperature; evaporators; condensers; fluids
Abstract:
In this paper, a special version of a vapor compression
heat pump cycle with solution circuit is introduced. In
this cycle, the gliding temperature intervals are
deliberately chosen so large, that the highest
temperature in the desorber (evaporator) is higher than
the lowest temperature in the absorber (condenser). As a
consequence, part of the absorber will be supplying heat
to the desorber resulting into an extremely low pressure
difference across the compressor, however, increasing
the mass flow rate for a given capacity. Depending on
the application, significant increases in the
coefficient of performance are availble while pressure
ratios stay below 2 for all aplications discussed here.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899