Investigation on the Situation of Combined Heating and Power System in Japan
Investigation on the Situation of Combined Heating and Power System in Japan
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DOI：
10.3130/jaabe.4.245
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发表时间：
2005-05
影响因子：
1.3
通讯作者：
Yingjun Ruan;Weijun Gao;Haifeng Li;T. Ojima
中科院分区：
文献类型：
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作者：
Yingjun Ruan;Weijun Gao;Haifeng Li;T. Ojima
摘要在日本，热电联产（CHP）系统近20年来发展迅速。为了掌握日本引进热电联产系统的现状和存在的问题，在东京进行了热电联产系统的问卷调查。根据调查结果，可以概括为以下几点：1）热电联产系统在各个行业得到了广泛的应用。发电量从几十千瓦到几千千瓦不等。2)热电联产总容量占电力需求峰值的百分比较低，所有调查用户的平均值仅为25%。3)燃气涡轮机和燃气发动机的综合能量利用效率为60%-80%，发电效率为20%-34.5%，余热利用效率为19.5%-50%。4)教育建筑的平均发电效率最高，为30.6%，其次是医院建筑，为29.6%，娱乐设施为29.5%，办公建筑为28%，综合建筑为25%。医院的平均余热利用率最高，为46.1%，其次是办公楼，为41.3%，复合建筑为39.8%。5)不同用户选择热电联产系统的动机不同。办公楼和综合楼选择经济性作为引入热电联产系统的最重要原因，而医院和教育用户更关注节能。医院和办公室用户对引进的热电联产系统感到满意;而综合大楼用户对热电联产系统不是很满意
Abstract In Japan, during the last 20 years, combined heating and power (CHP) system has been developed rapidly. In order to grasp the present condition of introduction and the existing problems of CHP system, the questionnaire survey on CHP system had been carried out at Tokyo. According to the results of investigation, it can be summarized as follows: 1) CHP system had been used widely in various sectors. The generating electricity capacity ranged several ten to several thousands kilowatt. 2) The percentage of CHP total capacity to the electricity demand peak was low and the average value for all users investigated was only 25%. 3) Gas turbine and gas engine achieved 60%-80% overall energy utilization efficiency with 20%-34.5% generating electricity efficiency and 19.5%-50% exhaust heat utilization efficiency. 4) Education buildings had the maximum average generating electricity efficiency with 30.6%, followed by hospital buildings with 29.6%, amusement facilities with 29.5%, office buildings with 28% and compound buildings with 25%. Hospitals attained the maximum average exhaust heat utilization efficiency with 46.1%, followed by offices with 41.3% and compound buildings 39.8%. 5) Various users had different motivation of selecting CHP system. Both office and compound buildings selected economy as the most important reason introducing CHP system; while hospital and education users concerned more saving energy. Hospital and office users were satisfied with the CHP system introduced; while compound building users were not satisfied very much with the CHP system