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NAOSITE : Nagasaki University's Academic Output SITE > Faculty of Engineering > Bulletin > Reports of the Faculty of Engineering, Nagasaki University > Volume 20, No. 34 >


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Title: 外部排熱を減少させた組合せサイクル
Other Titles: The Combined Cycle with Small Exhaust Heat
Authors: 栗須, 正登 / 吉田, 孝男 / 立山, 省吾 / 河部, 秀彦 / 児玉, 好雄
Authors (alternative): Kurisu, Masato / Yoshida, Takao / Tateyama, Shogo / Kawabe, Hidehiko / Kodama, Yoshio
Issue Date: Jan-1990
Publisher: 長崎大学工学部 / Faculty of Engineering, Nagasaki University
Citation: 長崎大学工学部研究報告, 20(34), pp.17-22; 1990
Abstract: Our most important problem is how to get the cooling water for thermal energy coversion at the local zone lacking for cooling water. In this paper, we described the possibilities of the energy conversion with small exhaust heat. This conversion was made possible with the combined cycle which used the two working mediums NH3 and R114. In the expansion process of energy conversion cycle, R114 is becoming dry and NH3 is wet. These characteristics and the latent heat characteristics of vaperization of NH3 and R114 are effectively used in the cycle. As the calculated results of the two working mediums, the possibility of the energy conversion cycle with small exhaust heat are testified. The calculated heat engine efficlency of the cycle (T1=373K, T2=273K) with NH3 and R114 is 0.259. This value is nearly equal to the Carnot's efficiency of one working medium cycle (ηcarnot = 0.268).
URI: http://hdl.handle.net/10069/24309
ISSN: 02860902
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 20, No. 34

Citable URI : http://hdl.handle.net/10069/24309

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