Research on combined heating supply system based on groundwater heat pump and steam turbine

摘要

In order to achieve high utilization efficiency of residual heat by reducing the energy conversion process, a new combined heat-supply system based on groundwater heat pump and steam turbine was designed. By obtaining operational principle and mathematicalmodel, the cop and the consumption of steam were analyzed and calculated, based on the combined heating supply system with different chilled water temperature of condenser. The cop increases firstly and decreases later with the outlet water temperature of the condenser rising. But the total steam consumption of combined heating supply system is quite contrary. The steam consumption of the heating supply system reaches a lowest value when the outlet temperature of the condenser is set as 84 °C.