Study on operation scheme of absorption heat pump of cogeneration units in non-heating season

This article research into cogeneration power plants' absorption heat pump operation scheme in the non-heating season. Two technical routes for supplying domestic hot water and heating condensate water have been proposed. By analysis and calculation, concluded as follow: Schemes for supplying domestic hot water has good economic benefits; For Scheme to heat condensate water, energy-saving condition depends on the heat source of heat pumps. Using turbine extraction steam as heat source is inefficient, while use other heat sources can reduce the turbine heat rate by approximately 60kJ/kWh.