长春市新建民用建筑采用热电联产的效果评价

本论文探讨了长春市新建民用建筑采用热电联产时的节能、环保和经济效果。由长春和东京气候条件的相似性,以东京能源消耗强度为基础,利用修正系数推算长春能源消耗强度。根据不同建筑用途的建筑面积和能源消耗强度,计算了长春市新建民用建筑的能源需要量。本研究设立了空调系统、锅炉系统、热主电从和电主热从系统。同时,设定了设备效率和价格、能源价格和二氧化碳排放强度等参数。计算四种能源供给系统的一次能源消费量、二氧化碳排放量、初期投资、运行费用和单纯回收年数。计算结果为:与空调系统相比,锅炉系统、热主电从和电主热从的热电联产系统的节能率分别为-2.1%、21.2%和6.0%;二氧化碳排放量的消减率分别为-0.7%、24.1%和9.4%;单纯回收年数分别为8.0,5.2和3.5年。

Research on 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 economtcat perlorm- ance when introducing combined heat and power （CHP） system new residential buildings in 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 Cbang- chun 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, boiler system and two combined heat and power systems. Likewise, equipment efficiency, equipment price, energy price and CO2 emission intensity are postulated. According to calculated and given data to calculate primary energy consumption, CO2emission, initial cost, annual operation costs and payback periods. The results are as follows： boiler system, CHP system 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 8.0, 5.2 and 6.0 years relative to the airconditioning system.