Articles

Effects of parameters setup on energy consumption of air conditioning systems

  • QIU Zejing ,
  • LUO Chao ,
  • MA Zhitong ,
  • ZHENG Xin ,
  • DUAN Zhiqiang
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  • 1. Nanrui (Wuhan) Electrical Equipment and Engineering Energy Efficiency Evaluation Center, Wuhan 430074, China;
    2. Guangzhou Institute of Energy Conversion; Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China;
    3. University of Chinese Academy of Sciences, Beijing 100086, China;
    4. Shenzhen Academy of Metrology & Quality Inspection, Shenzhen 518055, China;
    5. Economic and Technology of State Grid Hubei Electrical Power Company, Wuhan 430074, China

Received date: 2014-12-19

  Revised date: 2015-04-15

  Online published: 2015-08-28

Abstract

An office building in Shenzhen was selected as an example to study the effects of indoor temperature setup, air supply temperature difference, cold and cooling water temperature difference on energy consumption of air conditioning systems, based on the established physical and mathematical model. The results show that indoor temperature setup has relatively large influence on the air conditioning load and energy consumption. With indoor temperature setup increasing by 1℃, the air conditioning load decreases by 5.6%, and Coefficient of Performance (COP) and Energy Efficiency Ratio (EER) increase by 7.2% and 4.75% . With air supply temperature difference increasing by 1℃, the air conditioning load decreases by 4%, and COP and EER decrease by 5.2% and 4.64%. With cold water temperature difference increasing by 1℃, the cold water transfer factor increases by 7.85%. With cooling water temperature difference increasing by 1℃, the cooling water transfer factor increases by 8.68%.

Cite this article

QIU Zejing , LUO Chao , MA Zhitong , ZHENG Xin , DUAN Zhiqiang . Effects of parameters setup on energy consumption of air conditioning systems[J]. Science & Technology Review, 2015 , 33(15) : 60 -65 . DOI: 10.3981/j.issn.1000-7857.2015.15.009

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