投资回收期
采暖系统
煤
模式(计算机接口)
环境科学
蓄热式加热器
电加热
电
热的
燃烧
空气源热泵
能源消耗
核工程
热泵
气象学
废物管理
工程类
机械工程
电气工程
计算机科学
生产(经济)
化学
有机化学
经济
宏观经济学
物理
操作系统
热交换器
作者
Dong Zhang,Qu Boyi,Pengfei Liu,Zhoujian An
标识
DOI:10.1016/j.enbuild.2021.111120
摘要
In recent years, space heating modes are diversified. In the early stage of space heating design, we should reasonably evaluate and optimize the heating mode in order to get a better heating effect. In the past, the evaluation of different heating modes was mostly single evaluation. In this paper, the thermal comfort, economic, energy consumption and environmental benefit are comprehensively evaluated. Four heating modes in the “Coal to electricity” project of China are compared with coal combustion. The modes are ASHP (Air Source Heat Pump), solar heating, gas furnace and electric heating. Based on PMV-PPD, a more reasonable design thermal index of 35.18 W/m2 is obtained. The matched capacity and operation of heating system are optimized. The results show that ASHP combined with floor radiation heating is the best space heating mode in cold areas of China. The comprehensive rate of the four evaluations is 89.64%, and its thermal comfort is the best. For a 120 m2 house in Lanzhou, after the transformation of traditional coal burning heating mode, the static payback period is 6.9 years. The actual energy consumption reduction of society is 2,769 kg/year. The reduction of CO2 emissions is 4,014 kg/year.
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