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Study on Application of Air Source Heat Pump in Xi’an

Author: KangYanQing
Tutor: ZhengAiPing
School: Chang'an University
Course: Heating,Gas Supply, Ventilation and Air Conditioning Engineering
Keywords: Air source heat pump Measured CFD simulation Feasibility Economic energy
CLC: TU831
Type: Master's thesis
Year: 2010
Downloads: 274
Quote: 2
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Abstract


Air source heat pump is the outdoor ambient air as the heat source for heating and cooling , air-conditioned form, it consumes a small amount of electricity through the air in the low heat can ascend into the high use of heat , this environmentally-friendly and efficient way of energy supply in the low energy use has a significant competitive advantage , which in recent years concern. Air source heat pump units as one of the forms , its application is geographical and meteorological conditions, which caused a lot of problems for practical applications , preventing its promotion and development . Based on these problems, the air source heat pump applications in Xi'an region studied , and its feasibility and economic analysis of energy efficiency , and combination of these factors , to guide its use in the region . In this paper, the rule of Xi'an University of Architecture and Technology Garden Hotel as objects, studying air source heat pump in Xi'an Area. Paper first analyzes the characteristics of Xi'an region's climate and air source heat pump system for the environmental conditions , and then in the building air conditioning in summer and winter, and stable operation of a typical day , choose a representative hall for temperature , speed and relative humidity measurement, on this basis, both for CFD simulations to compare validation , both indicate that air source heat pump in the region is feasible . Also for air source heat pump outdoor unit running in winter frost conditions , but also a one-month winter outdoor temperature and relative humidity monitoring , the data show air source heat pump in winter in Xi'an runtime is more reliable. In terms of feasibility , based on the architecture of existing direct evaporative air-source heat pump system and assuming direct-fired lithium bromide absorption chiller , chiller fuel water heaters for the initial investment and operating costs , the results showed that the air source heat pump system than the other two schemes economic energy . Actual test analysis, simulation, verification, and economic comparisons have shown that in the Xi'an area such a small room like office buildings, hotels and other small buildings in the use of air source heat pump system is feasible and economic energy . This can be in the region as well as other similar climates around the application of air-source heat pump system to provide reference and guidance.

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CLC: > Industrial Technology > Building Science > Housing construction equipment > Air-conditioning, heating, ventilation,and its equipment > Air-conditioning
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