Optimization and Thermoeconomics Research of a Large Reclaimed Water Source Heat Pump System

Table 4

Comparison of the two heating methods.

Heating scheme	Heating area (10^4 m^2)	Initial investment cost (10^4 yuan)	heating cost (yuan/m^2·a heating season)	Unit energy costs (yuan/m^2·a heating season)	Exergy efficiency (%)
RWSHPS	200	11344	16.3	10.9	66.2
	800	36505	17.2	13.2	60.6
Gas boiler system	800	10800	26.7	24.6	43.9