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Analysis and Study of Energy-saving of Air Conditioning in Undrground and Ground Building

Author: HuShiHua
Tutor: ZhengAiPing
School: Chang'an University
Course: Architecture and Civil Engineering
Keywords: Underground buildings Ground-level structures Air conditioning Energy-saving
CLC: TU831
Type: Master's thesis
Year: 2009
Downloads: 51
Quote: 0
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Abstract


In recent years , with the accelerated process of urbanization , urban construction, the rapid development of cities have been expanding, the rapid expansion of urban population in many cities to building land , crowded living space , traffic congestion, poor infrastructure, ecological imbalance environmental degradation and other urban disease , to the people living life is a big impact , which restricts the urban economic development and social progress , obstacles to sustainable development of the modern city . In this context , the urban underground space development and utilization imminent. The comfort of the internal environment in the urban underground construction after the completion of a direct impact on the efficiency of its use . Built using the indoor temperature and humidity control is critical. Building in the underground , the surface climate impact is very small, coupled with the heat of the geotechnical characteristics , determines the heat of the underground construction , scattered wet very difficult , thus affecting the thermal state of the environment , which requires good ventilation to ensure . These characteristics of the underground construction of underground building shape coefficient , good heat insulation and heat storage capacity , relatively stable and comfortable indoor environment can be maintained in the harsh and changeable external climate conditions of the underground building air-conditioning load is reduced , thereby reducing the air conditioning energy consumption . The proportion of the energy consumption of the air conditioning system in the building energy consumption , regardless of underground construction or ground construction , air-conditioning energy saving and environment during the current construction is particularly important . Fluent calculation software to simulate the flow and temperature fields in a garment of Xi'an City underground and ground air-conditioned rooms , underground construction and ground air conditioning energy consumption of the building by the simulation results are compared . Underground and ground mall project examples are briefly compared the energy consumption of the building of underground construction with the ground .

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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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