Energy performance assessment on central air-conditioning system of commercial building： A case study in China

周璇12; 练斯甄12; 闫军威12; 康英姿12

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Energy performance assessment on central air-conditioning system of commercial building： A case study in China

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Energy performance assessment on central air-conditioning system is essential to optimize operating, reduce operating costs, improve indoor environmental quality, and determine whether the retrofitting of the equipment is necessary. But it is difficult to evaluate it reasonably and comprehensively due to its complexity. A "holistic" approach was discussed to evaluate the energy performance of central air-conditioning system for an extra-large commercial building in a subtropical city. All procedures were described in detail, including field investigation method, field measurement instruments, data processing and data analyzing. The main factors affecting energy consumption of air-conditioning system were analyzed and the annual cooling-energy use intensity of this building was calculated and also compared with other shopping malls and other types of buildings in Guangzhou. And COP(coefficient of performance) of chiller, water transfer factor of chilled water system and cooling water system were taken into consideration. At last, the thermal comfort and indoor air quality issues were addressed. The results show that the chilled water pumps are over-sized and the indoor environmental quality should be improved. The purpose of this work is to provide reference for energy performance assessment method for air-conditioning system.

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来源
《中南大学学报》 |2015年第8期|P.3168-3179|共12页
作者
周璇12; 练斯甄12; 闫军威12; 康英姿12;
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作者单位

[1]School of Mechanical ＆ Automotive Engineering, South China University of Technology, Guangzhou 510640, China;

[2]City Air-conditioning Energy Conservation and Control Project Technology Research Exploitation Center of Guangdong, Guangzhou 510640, China;

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原文格式 PDF
正文语种 CHI
中图分类 TU831.31;
关键词
中央空调系统; 性能评价; 商业大厦; 节能; 室内环境质量; 冷却水系统; 中国; 评估方法;

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Energy performance assessment on central air-conditioning system of commercial building： A case study in China

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