Optimization of solar composite water heating system based on orthogonal test method
In order to minimize the energy consumption for domestic hot water and realize the efficient and energy-saving operation of the air source heat pump-assisted solar hot water supply system,this paper selecting the air source heat pump-assisted solar hot water supply system in a university dormitory in Jinan as the research object,constructing the system simulation model using TRNSYS software,employing orthogonal test method without interaction and taking the annual system COP and solar energy assurance rate as optimization objectives,optimizes the collector area,the collector tilt angle,heat pump heating power and water tank volume as well as further analyzes the optimization results for the economic viability and energy efficiency.The results show that when the system COP is taken as the optimization objective,the optimal combination includes that the collector area is 390 m2,the collector tilt angle is 42°,the heat pump heating power is 50 kW,the water tank volume is 23.94 m3,and the annual dynamic cost is 73 800 yuan with annual saving of 17.12 tce of standard coal compared with the natural gas system.When the solar energy assurance rate is taken as the optimization objective,the optimal combination includes that the collector area is 342 m2,the collector tilt angle is 44°,the heat pump heating power is 35.5 kW,the water tank volume is 20.58 m3,and the annual dynamic cost is 65 600 yuan with annual saving of 16.63 tce of standard coal compared with the natural gas system.
solar energyair source heat pumporthogonal test methodoptimization researchannual dynamic cost
万方数据
维普
