期刊
APPLIED ENERGY
卷 87, 期 4, 页码 1247-1259出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2009.06.027
关键词
Combined cooling, heating and power (CCHP) system; Multi-criteria analysis; Climate zones; Energy demand; Operation mode; China
资金
- Ministry of Education, China
The design and operation of combined cooling, heating and power (CCHP) systems are greatly dependent upon the seasonal atmospheric conditions, which determine thermal and power demands of buildings. This paper presents a mathematical analysis of CCHP system in comparison to separate system. The corresponding primary energy consumption in thermal demand management (TDM) and electrical demand management (EDM) operation modes are deduced. Three relative criteria, primary energy saving (PES), CO2 emission reduction (CO2ER), and annual total cost saving (ATCS) are employed to evaluate the respective performances of CCHP systems for a hypothetical building in five different climate zones from the technical, environmental and economic aspects. The results indicate that CCHP system in TDM mode in the cold area, where the building requires more heating during the year, achieves more benefit over separate system while CCHP system in EDM mode suits the building having stable thermal demand in mild climate zone. (C) 2009 Elsevier Ltd. All rights reserved.
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