I n order to improve the economy of middle-deep buried pipe ground source heat pump system,taking a factory renovation project in Shenyang as an example,in terms of the composite heat source system of"ground source heat pump+electric boiler",a multi-dimensional evaluation algorithm for composite middle-deep ground source heat pump system is established,coupling buried pipes,key equipment and load charac-teristics.The impacts of design parameters on multiple indicators such as energy con-sumption,carbon reduction and net present value are analyzed.The results show that sys-tem carbon emission decreases yearly with the decrease of electricity carbon emission factor.The larger the heat pump load ratio,the larger the emission reduction poten-tial.When the heat pump load ratio is 0.62 and the borehole depth is 2 900 m,the relative net present value reaches the maximum,which is 44.6 × 106 yuan,and 4 976.4 ton of standard coal can be saved compared with the original system.
维普
万方数据