Optimization design method of valley power energy storage heating system
In order to cope with the clean heating in the north,this paper proposes a valley power energy storage heating system,which aims to make full use of the advantages of geothermal energy and energy storage technology to meet the clean heating in winter. Firstly,the system is introduced. Then,an optimization design method is proposed for the system. On the basis that the system meets the hourly heat load requirements of the building in the typical year,the annual total cost of the typical year (including annual initial cost and annual operating cost) is taken as the objective function,and then the capacity of each equipment is optimized by solving the minimum objective function. Among them,in the annual operation cost calculation of the typical year,the system operation strategy adopted is introduced in detail. Finally,taking the winter heating of a multi-storey office building in the northern region as an example. Before the optimization design method is adopted,the total annual cost of the system is 842600 yuan,while after the optimization design method is adopted,the minimum annual cost of the system is 619000 yuan. After optimization design,the optimal capacity of the rated heating capacity of the ground source heat pump unit,the volume of the heat storage tank and the rated heating capacity of the electric boiler in the heating system are 1276369 W,1022 m3 and 2604791 W,respectively,and the corresponding minimum annual total cost is 619035 yuan. The integrated energy composite system and its optimization design method proposed in this paper provide a choice of clean heating for the northern region,which is of great significance to China 's energy transformation.
energy storageground source heat pumpelectric boilerheat storage tanksystem optimization design
国家科技期刊平台
NSTL
万方数据
