Investigation on the Situation of Combined Heating and Power System in Japan
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- Ruan Yingjun
- Faculty of Environment Engineering, The University of Kitakyushu, Japan
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- Gao Weijun
- Faculty of Environment Engineering, The University of Kitakyushu, Japan
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- Li Haifeng
- Building Research Institute, Japan
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- Ojima Toshio
- Department of Architecture, Waseda University, Japan
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説明
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. <br>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
収録刊行物
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- Journal of Asian Architecture and Building Engineering
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Journal of Asian Architecture and Building Engineering 4 (1), 245-251, 2005
日本建築学会、大韓建築学会、中国建築学会
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詳細情報 詳細情報について
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- CRID
- 1390282680177658496
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- NII論文ID
- 110006345816
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- NII書誌ID
- AA11798263
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- ISSN
- 13472852
- 13467581
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可