Experimental Evaluation of Engine-Driven Heat Pump Systems.
Experimental Evaluation of Engine-Driven Heat Pump
Maxwell, B. R.; Didion, D. A.
Winter Annual Meeting, 1978. American Society of
Mechanical Engineers (ASME). December 11-15, 1978, San
Francisco, CA, 1978.
heat pumps; experiments; evaluation; temperature; engine
coolant; exhaust energy; heating; cooling; tests;
instruments; diesel engines; equations; climate
A laboratory investigation was conducted of an
engine-driven air-to-air, variable speed, 3-ton Rankine
pump. A water-cooled Stirling engine was used tin one
series of tests and a water-cooled Diesel engine of
comparable size was used in another series. The
stead-state part-load performance of both engine-driven
systems was determined as a function of outdoor
temperature and compressor speed. Engine coolant energy
and recoverable exhaust energy were determined and
included in the heating mode calculations. Heating and
cooling capacities; system coefficients of performance,
and seasonal performance factors were determined for
both systems. Additional tests were concerned with
defrost mode energy requirements and the influence of
coolant temperature on system performance.