教員活動データベース

鉛直平板におけるアンモニアおよびアンモニア/水混合媒体の局所強制対流沸騰熱伝達

発表形態：: 一般講演（学術講演を含む）
主要業績：: 主要業績
単著・共著：: 共著
発表年月：: 2007年05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：

有馬博史, KIM Jeong-Hun, 秋山泰有, 池上康之, 岡本明夫読み: アリマヒロフミ、キムジョンフン、アキヤマヒロクニ、イケガミヤスユキ、オカモトアキオ

題名：

鉛直平板におけるアンモニアおよびアンモニア/水混合媒体の局所強制対流沸騰熱伝達

発表情報：

第44回日本伝熱シンポジウム講演論文集ページ: A235

キーワード：

Plate heat exchanger, Ammonia/Water mixture, Boiling heat transfer coefficient, Visualization

概要：

抄録：

The ocean thermal energy conversion (OTEC) and hot spring thermal conversion (STEC) are expected to be the next generation energy production systems. Both systems use a plate heat exchangers, and ammonia or ammonia/water mixture as a working fluid. Measurements of boiling heat transfer coefficients for pure ammonia and ammonia/water mixture were performed on a vertical flat plate heat exchanger, to clarify and characterize the behavior of ammonia and ammonia/water mixture on the plate evaporator. The result shows that in case of pure ammonia, the local heat transfer coefficients increase with an increase in vapor quality for almost all cases. On the other hand, in case of ammonia/water mixture, the local heat transfer coefficients decrease with an increase in vapor quality. In addition, the visualization was performed. As a result of visualization, different boiling flow pattern inside of the plate were observed at different experimental conditions as well as tube flow.

英語フィールド

Author：

Hirofumi Arima, KIM Jeong-Hun, Hirokuni Akiyama, Yasuyuki Ikegami, Akio Okamoto

Title：

Local Heat Transfer in Forced Convective Boiling of Ammonia and Ammonia/Water Mixture on the Vertical Flat Plate

Announcement information:

Proceeding of 44th National Heat Transfer Symposium of Japan Page: A235

Keyword：

Plate heat exchanger, Ammonia/Water mixture, Boiling heat transfer coefficient, Visualization

An abstract：