Energy performance and CO2 emissions of fuel cells for residential application in Chinese hot summer and cold winter areas

2019 2nd International Conference of Green Buildings and Environmental Management

生态环境科学

Gong, Xinzhi^1 ; Wu, Nong^2 ; Li, Chuancheng^3 ; Liang, Miaomeng^1 ; Akashi, Yasunori^4

Guangxi Key Laboratory of New Energy and Building Energy Saving, Guilin University of Technology, Guilin

541004, China^1

Department of Architecture, Northwestern Polytechnical University, Xi'an

710072, China^2

Department of Architecture, Wuhan University of Technology, Wuhan

430072, China^3

Department of Architecture, Graduate School of Engineering, University of Tokyo, Japan^4

关键词: Cogeneration systems;    Energy-saving effect;    Hot summer and cold winters;    Modeling for simulations;    Primary energy consumption;    Residential application;    Residential building;    Thermal energy generation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/310/2/022057/pdf
DOI  :  10.1088/1755-1315/310/2/022057

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The energy consumed in residential buildings has become a key factor in China. An energy-efficient and low-emission fuel cell co-generation system (FC-CGS) is a promising electric and thermal energy generation technology to enhance the energy-saving effects for residential application. SOFC-CGSs and PEFC-CGSs are the two major types of residential FC-CGSs. This paper aims to analyze the energy-saving effects of FC-CGSs for residential buildings in Chinese hot summer and cold winter areas. Changsha city is selected as an example. This study at first outlines SOFC-CGSs and PEFC-CGSs, introduces the simulation methods and develops a standard family model for simulation, then calculates domestic demands of the system, and finally compares the primary energy consumption and CO2 emissions of FC-CGSs with those of a traditional power and heat generation system based on gas and electricity. The results show that residential PEFC-CGSs offered primary energy reduction of 8.8% in winter. However, the average reductions of primary energy and CO2 emissions of SOFC-CGSs were 15.1% and 9.9%, respectively.