The Energy Conservation And Technology Using Analysis Of Ground Source Heat Pump Based On Actual Survey

The technology of ground source heat pump develop rapidly in our country. There are more and more researching in recent years. Entry Inspection and Quarantine Bureau in Hubei Province lab building air conditioning project is an energy-saving demonstration project of national, its air conditioning program used cooling tower——vertically underground pipe ground source heat pump system with heat recovery part. The project as an example in this article, to introduced the way of design of underground pipe heat exchanger, the part of heat recovery and the cooling tower. Reorganization and analysis the monitor date of the project. Use DeST software to did simulation and computation the energy consumption of various air conditioning conditions. Using the way of comparison with different air conditioning conditions to shows power-saving characteristic of ground source heat pump system.Collation and analysis the energy consumption of monitor date from March 2010, can be obtains the efficiency ratio of ground source heat pump system was 2.83.It's higher than other air-conditioning programs, energy saving effect is obvious. Collation and analysis the soil temperature data from December 2009 to March 2010. We can see through the heat extraction system extraction the heat from soil, its temperature decreased. It was indicating the variation rule of soil temperature in the application of ground source heat pump system.Compared the initial investment and operating costs of the ground source heat pump program, water cooling unit + cooling tower + gas boiler program, direct-fired LiBr + cooling tower program and Air-cooled heat pump program. We can see the initial investment of ground source heat pump is higher but operating costs lower than others.Compared with water cooling unit + cooling tower + gas boiler program. The payback period is 4.4 years. Comparison of annual energy consumption of air conditioning scheme. The energy consumption of ground source heat pump system is 60.7% of water cooling unit + cooling tower + gas boiler program, 48.5% of direct-fired LiBr + cooling tower program, 41.8% of Air-cooled heat pump program. Obviously that ground source heat pump system can save power.