Experimental Evaluation of Engine-Driven Heat Pump Systems. Presented at the 1978 American Society of Mechanical Engineers (ASME) Winter Annual Meeting, December 11-15, at San Francisco, California

摘要

A labortory investigation was conducted of an engine-driven air-to-air, variable speed, 3-ton Rankine heat pump. A water-cooled Stirling engine was used in one series of tests and water-cooled diesel engine of comparable size was use in another series. The steady-state part-load performance of both engine-driven systems was determined as a funcition 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 coefficents 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 systems performance.