著者

中村 寛 ナカムラ ユタカ Yutaka Nakamura

雑誌

立教アメリカン・スタディーズ = Rikkyo American studies

巻号頁・発行日

vol.39, pp.143-161, 2017

著者

中村 豊 黒木 幸敏 Yutaka Nakamura Yukitoshi Kuroki

出版者

東京理科大学教育支援機構教職教育センター

雑誌

東京理科大学教職教育研究 (ISSN:24327565)

巻号頁・発行日

no.3, pp.75-84, 2018-02-28

著者

Yutaka NAKAMURA Yutaka TAKANOHASHI Akira ASO Toshiko TAKANOHASHI Naomi SYUTO Sayuri SATO Isako SHIMOKAWA

出版者

The Ornithological Society of Japan

雑誌

Japanese Journal of Ornithology (ISSN:0913400X)

巻号頁・発行日

vol.52, no.2, pp.122-123, 2003 (Released:2007-09-28)

参考文献数

5

被引用文献数

1 3

著者

Takaaki DEGUCHI Yoshiaki TANIGUCHI Go HASEGAWA Yutaka NAKAMURA Norimichi UKITA Kazuhiro MATSUDA Morito MATSUOKA

出版者

一般社団法人 電子情報通信学会

雑誌

IEICE Transactions on Communications (ISSN:09168516)

巻号頁・発行日

vol.E99.B, no.2, pp.347-355, 2016-02-01 (Released:2016-02-01)

参考文献数

17

被引用文献数

1 1

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In this paper, we propose a workload assignment policy for reducing power consumption by air conditioners in data centers. In the proposed policy, to reduce the air conditioner power consumption by raising the temperature set points of the air conditioners, the temperatures of all server back-planes are equalized by moving workload from the servers with the highest temperatures to the servers with the lowest temperatures. To evaluate the proposed policy, we use a computational fluid dynamics simulator for obtaining airflow and air temperature in data centers, and an air conditioner model based on experimental results from actual data center. Through evaluation, we show that the air conditioners' power consumption is reduced by 10.4% in a conventional data center. In addition, in a tandem data center proposed in our research group, the air conditioners' power consumption is reduced by 53%, and the total power consumption of the whole data center is exhibited to be reduced by 23% by reusing the exhaust heat from the servers.