Journal of Guangdong University of Technology ›› 2015, Vol. 32 ›› Issue (3): 141-146.doi: 10.3969/j.issn.1007-7162.2015.03.027

• Comprehensive Studies • Previous Articles    

The Comparative Analysis of Energy Flow on Central Air Conditioning Systems in Heating Mode with Different Heat Sources

Lü Chong-hua, Liu Li-ru, Wang Xiao-xia   

  1. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2014-03-11 Online:2015-09-22 Published:2015-09-22
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Abstract: In order to meet the requirement of the heating thermal comfort and indoor air quality, the energy flow mathematical model for the central air conditioning system with air-source heat pump water chiller and fuel combustion boiler were established in sequence to finally determine global energy flow through analyzing the comparative energy flows of the consecutive loops which begin from extraction energy from the environment and provide it to the conditioning space. As a case study, the two energy flow diagrams of heating modes with different heat sources at a hotel in Guangzhou were drawn respectively, which can visualize each energy flow, energy balances, energy losses and their main differences. Recognizing the main energy flow of the two heat sources can provide useful messages for selection and energy saving of heating mode of conditioning system.

Key words: heating mode of air conditioning, air-source heat pump water chiller, heat water boiler, energy flow mathematical models, heat source selection, energy saving and lower consumption

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