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ランキンサイクルを用いたOTEC発電システムの設計手法に関する研究

発表形態:
一般講演(学術講演を含む)
主要業績:
単著・共著:
発表年月:
2017年
DOI:
会議属性:
査読:
リンク情報:

日本語フィールド

著者:
野口 貴史;安永 健;森崎 敬史;中野 裕貴;池上 康之
題名:
ランキンサイクルを用いたOTEC発電システムの設計手法に関する研究
発表情報:
動力・エネルギー技術の最前線講演論文集 : シンポジウム 巻: 2017 号: 0 ページ: -
キーワード:
概要:

Ocean thermal energy conversion (OTEC), utilizes the small temperature difference between the surface seawater and the deep seawater, requires relatively large heat transfer areas due to theoretically low thermal efficiency. Therefore, the optimum design method by minimizing the objective function that defined as total required heat transfer areas for heat exchangers per the maximum net power output has been employed. However, in the onshore type of small capacity OTEC system, the cost for seawater intake facility in the capital expense may be dominant. Therefore, the diminution in the capacity of the intake facility will lead lower the expense. This paper describes about the new optimum design applying the net maximum work efficiency as an element of the objective function. The results show the reduction in the capacity of total seawater flow rate against increase of total heat transfer area compared with the conventional design method.

抄録:

英語フィールド

Author:
NOGUCHI Takafumi;YASUNAGA Takeshi;MORISAKI Takafumi;Nakano Yuki;IKEGAMI Yasuyuki
Title:
Study of System Design Method for Rankine Cycle System on OTEC
Announcement information:
The Proceedings of the National Symposium on Power and Energy Systems Vol: 2017 Issue: 0 Page: -
An abstract:

Ocean thermal energy conversion (OTEC), utilizes the small temperature difference between the surface seawater and the deep seawater, requires relatively large heat transfer areas due to theoretically low thermal efficiency. Therefore, the optimum design method by minimizing the objective function that defined as total required heat transfer areas for heat exchangers per the maximum net power output has been employed. However, in the onshore type of small capacity OTEC system, the cost for seawater intake facility in the capital expense may be dominant. Therefore, the diminution in the capacity of the intake facility will lead lower the expense. This paper describes about the new optimum design applying the net maximum work efficiency as an element of the objective function. The results show the reduction in the capacity of total seawater flow rate against increase of total heat transfer area compared with the conventional design method.



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