Effect of Introducing Combined Heat and Power (CHP) System in New Residential Buildings in Changchun
This paper discusses the effect of energy saving,environmental impact and economic performance when introducing combined heat and power (CHP) system new residential buildings in Changchun.The selected research subjects is Xin Yuan Garden-new residential buildings,it consists of residences and stores and locates in the east of Changchun.Conclusions derived from Xin Yuan Garden could be extended to Changchun.Because of similarities in climate conditions between Changchun and Tokyo,on the basis of the intensity of energy consumption of Tokyo,this paper could reckon the intensity of energy consumption of Changchun in accordance with degree day correction.Energy demands of Changchun are calculated in accordance with areas of different types of buildings and the intensity of energy consumption of Changchun.Four energy supply systems are set up,namely air-conditioning system (system 1),boiler system (system 2) and two combined heat and power systems (system 3 and system 4).Likewise,equipment efficiency,equipment price,energy price and CO2emission intensity are postulated.According to calculated and given data to calculate primary energy consumption,CO2emission,initial cost,annual operation costs (the sum of fuel,maintenance and labour costs) and payback periods.The results are as follows: boiler system (system 2),CHP system (system 3 and system 4) energy saving rates are respectively -2.1%,21.2% and 6.0%,CO2 reduction rates are respectively -0.7%,24.1% and 9.4% and payback periods are respectively 18.1,8.2 and 4.6 years relative to the air-conditioning system (system 1).Comparing the results of four systems,it could conclude that CHP systems (system 3 and system 4) would be attractive options when introducing energy system in new residential building.
Combined heat and power (CHP) system Energy saving Environmental impact Economic performance Residential buildings
Ling Jing Xindong Wei
School of Municipal and Environmental Engineering,Jilin Architectural and Civil Engineering Institute,Changchun,China
国际会议
The First International Conference on Building Energy and Environment(第一届建筑能源与环境国际会议)
大连
英文
301-308
2008-07-01（万方平台首次上网日期，不代表论文的发表时间）