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水-アンモニア混合流体の水平内面ら旋溝付管内蒸発流の圧力損失の実験

発表形態:
一般講演(学術講演を含む)
主要業績:
その他
単著・共著:
共著
発表年月:
2007年10月
DOI:
会議属性:
国内会議
査読:
無し
リンク情報:

日本語フィールド

著者:
桃木悟,有馬博史,磯崎裕希,北島圭祐,山口朝彦,茂地徹 読み: モモキサトル、アリマヒロフミ、イソザキユウキ、キタジマケイスケ、ヤマグチトモヒコ、シゲチトオル
題名:
水-アンモニア混合流体の水平内面ら旋溝付管内蒸発流の圧力損失の実験
発表情報:
日本冷凍空調学会 年次大会2007 講演論文集 ページ: E105
キーワード:
Two-phase flow Pressure drop, Spirally Grooved Steel Tube, Ammonia,Water, Azeotrope mixtures
概要:
抄録:
Pressure drop of evaporating azeotrope binary mixtures, ammonia+water is measured using the horizontal spirally grooved steel tube with 12mm average inner diameter under the experimental conditions of 0.9 in mass concentration of ammonia, about 7 bar in pressure and 15~40 kg/h in mass flow rate. The measured values of pressure drop gradient were well correlated by the Higashiiue correlation, which was originally developed for the fluorocarbon refrigerants. The circumferential temperature distributions of the tube surface were also measured and discussed for the case with very small heat flux in order to specify the flow regime. The temperature differences between the upper and lower halves of the test tube were observed in the case of low mass flow rate and low vapor quality conditions.

英語フィールド

Author:
Satoru MOMOKI, Hirofumi ARIMA, Yuuki ISOZAKI,
Keisuke KITAJIMA, Tomohiko Yamaguchi, Toru SHIGECHI
Title:
EXPERIMENT FOR PRESSURE DROP OFWATER-AMMONIA MIXTURES EVAPORATING INSIDE
A HORIZONTAL SPIRALLY GROOVED TUBE
Announcement information:
Proceeding of 2007 JSRAE Annual Conference Page: E105
Keyword:
Two-phase flow Pressure drop, Spirally Grooved Steel Tube, Ammonia,Water, Azeotrope mixtures
An abstract:
Pressure drop of evaporating azeotrope binary mixtures, ammonia+water is measured using the horizontal spirally grooved steel tube with 12mm average inner diameter under the experimental conditions of 0.9 in mass concentration of ammonia, about 7 bar in pressure and 15~40 kg/h in mass flow rate. The measured values of pressure drop gradient were well correlated by the Higashiiue correlation, which was originally developed for the fluorocarbon refrigerants. The circumferential temperature distributions of the tube surface were also measured and discussed for the case with very small heat flux in order to specify the flow regime. The temperature differences between the upper and lower halves of the test tube were observed in the case of low mass flow rate and low vapor quality conditions.


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