Technical and Economic Analysis of CCHP System in a Building

Combined Cooling，Heating and Power system(CCHP system) has potential advantages in areas of energy reliability, environment and economics. This paper analyses the system's principles and puts forward internal combustion engine CCHP system and builds a series of mathematical models of each part. The main purpose of this paper is the analysis of the annual total cost and energy saving rate, the results show that, compared with the conventional supply system, the CCHP system can save 1,060,000￥annual, the save rate is amounted to 22.1% and relative energy saving ratio could reach 13%. This study may provide with some reliable foundations on the application of the CCHP system.