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A commercial building air conditioning energy simulation and testing research

Author: WangShuaiBin
Tutor: LiuGuoDan
School: Qingdao Technological University
Course: Heating,Gas Supply, Ventilation and Air Conditioning Engineering
Keywords: Commercial buildings Building energy Energy simulation Field Test
CLC: TU201.5
Type: Master's thesis
Year: 2010
Downloads: 126
Quote: 0
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Abstract

As China's energy-saving work, the large public building energy efficiency has attracted much attention. In this paper, Tsinghua University Building Energy Center developed a large public building energy sub-metering real-time monitoring and analysis system as the basis for the conduct of a commercial building energy simulation and experimental study , the test data processing and analysis , evaluation mall energy use , on this basis , gives the corresponding energy-saving recommended . Firstly, the use of air-conditioned buildings BIN method to calculate energy consumption , according to the mall distribution system diagram and field research results to develop energy testing program , and the air conditioning energy consumption on-site testing , calibration BIN method is used to simplify the calculation of the energy project feasible. The principle of using statistics to evaluate the level of building energy consumption , compared with non-air- conditioning season, seasonal differences in monthly total power consumption , power consumption per unit area of air conditioning season is 37.63 ~ 49.13 kWh / m , rather than air-conditioning power consumption per unit area of the season for the 28.59 ~ 31.13 kWh / square meters , the annual total power consumption per unit area of 411.9 kWh / m ; using least squares method to obtain monthly total average monthly electricity consumption and the outdoor dry bulb temperature regression coefficient , and the mall building energy saving status evaluation . The experimental test data analysis showed that the annual energy consumption of air conditioning systems account for the largest proportion was 42% ; followed by a light socket , the ratio was 33.5%. Chiller COP is low, only 4.0 , the system supply and return water temperature is about 3 ℃ , the system is in big flow, small temperature operation. The same time through the indoor illumination and temperature and humidity test analysis showed that the indoor temperature and humidity according too large and there is a serious uneven . To solve the above problems , this paper uses a combination of theoretical analysis and experimental methods, refrigeration units, water systems , cooling towers, air conditioning end run to analyze the situation , and the corresponding energy-saving measures . Through the utilization of the energy consumption of the mall , you can basically Qingdao area energy use in commercial buildings have some understanding of the situation , to summarize existing building energy use of such problems , the future of China's large public buildings energy use quota management, building energy transformation to provide basic data and reference on the work of building energy efficiency in-depth research and extension has a certain significance .

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