著者

張 健 許 雷

出版者

日本建築学会

雑誌

日本建築学会環境系論文集 (ISSN:13480685)

巻号頁・発行日

vol.75, no.654, pp.759-765, 2010-08-30 (Released:2010-10-08)

参考文献数

8

被引用文献数

2

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Energy consumption survey is conducted in a university campus with co-generation system used for 22 years. According to the hourly data in a complete year, the performance of the whole system including the electricity generation, waste heat recovery, and gas consumption, the operating conditions and the overall energy efficiency is analyzed. The overall energy efficiency reaches 43% to 69%, which shows this energy system still maintains good performance. Then it is pointed out that the correlation coefficient between the energy consumption for cooling and the natural logarithm of outside air temperature exceeds 0.9 in this article. And the load curves for multi-unit control are also illustrated, which can be used to evaluate the performance of the whole system. Furthermore, the authors propose the optimization of the number of operating gas turbines, which improves 2% the overall energy efficiency in summer.