Scheme Design on Ground Source Heat Pump of an Energy Efficiency Demonstration Building and Its Economic Analysis

Design schemes of ground heat exchanger system used in ground source heat pump for an energy efficiency demonstration building are presented in detail.It involves the selection of heat pump units,the calculation of total borehole depth,the determination on the capacitance of assistant cooling tower,the calculation and check of flow rate of ground heat exchanger,the array and layout of ground heat exchanger system,the design and check of ground heat balance,the system resistance calculation and the press check of ground heat exchangers system.At the same time,the analysis on economic of the system is also undertaken.The design and analysis method used in this paper can provide a reference for the same buildings.