Research On The Evaluation Method Of Ground Source Heat Pump Air Conditioning Engineering

Ground source heat pump is building heating and air conditioning equipmentideal with the excellent energy-saving features. Holding down the total amount ofenergy consumption can lead two aspects directly: saving the cost of energy andreducing the environmental pollution caused by energy use. Obviously, this is usefulfor the nation and people. But，in the development mode, local policies, economicpursuit of the external factors such as restriction，energy saving is not necessarilypopular problems.So for building determine the form of heat and cold source，factorsneed to be integrated complex evaluation, comparison.Otherwise may appear thephenomenon of "energy saving but lose money", this is clearly not welcome.In this paper, aiming at building economy energy system, energy saving，discusses the evaluation of various building heat and cold source schemes comparisonmethod,formation of the system architecture of cold and heat source scheme selectionmethod.In order to improve energy efficiency and economic benefit.By comparisonwith initial investment and operation cost，combining static investment payback periodcalculated to determine the method system of building cooling and heat sources.There are many combination forms in building cold and heat source plan. In theproject’s demonstration stage, according to the experience and market conditions, weshould eliminate impossible application plan. For example,in very specialcircumstances electric heating is a heating scheme that has little application value.General cold and heat source scheme can not consider. This makes optional plans asfew possible. On the basis of preliminary screening, for alternatives, judge the bestsolution, calculate the the initial investment and operating cost. This paper, taking theproject of Datong Court as object, compares the ground source heat pumpplus auxiliary heat source scheme of central heating with conventional scheme ofordinary water chiller. Comparison result shows that processing policy of “access fee”plays a decisive role two schemes economic benefits. This is essential managementpolicy issues, not technical issues. Because of using the formation of renewable energy，ground source heat pumphas excellent energy-saving features. Heat pump is in balance but not affected byseason, because the stratum is exothermic and endothermic seasonally in summer andwinter. But because of the large investment, the construction of energy-savingtechnology is no advantage in the economy. This is the major obstacles on theapplication of ground source heat pump technology.