22 May 2008

CAPACITY CONTROL AND OPTIMISED OPERATION OF DOMESTIC HEAT PUMP HEATING SYSTEMS


The efficiency of ground-source heat pump heating systems can be increased
considerably by using variable-speed compressors and pumps instead of fixed-speed
components. For the heat pump systems evaluated in this work the increase in efficiency is
in the range of 15 – 27 %, if the efficiency of the variable-speed compressor can be
increased to the same level as the single-speed compressor.