期刊
ENERGY AND BUILDINGS
卷 246, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.enbuild.2021.111120
关键词
Heating modes; Comprehensive evaluation; PMV-PPD; Cold areas
资金
- National Natural Science Foundation of China [51806093]
- Natural Science Foundation of Gansu Province [18JR3RA141, 20JR10RA193]
- Red Willow Excellent Youth Project of Lanzhou University of Technology [201810]
The paper comprehensively evaluates thermal comfort, economic viability, energy consumption, and environmental benefits, concluding that ASHP combined with floor radiation heating is the best heating mode in cold areas of China. After transforming from traditional coal burning, there is a significant reduction in actual energy consumption and CO2 emissions.
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/m(2) 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 m(2) 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. (C) 2021 Elsevier B.V. All rights reserved.
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