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Convective Boiling Heat Transfer Enhancement by Microgrooves in Plate Evaporator

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：: 2011年03月

DOI：
会議属性：: 国際会議（国内開催を含む）
査読：: 有り
リンク情報：

日本語フィールド

著者：

Hirofumi Arima, Nobuhiko Matsuo, Keita Shigyou, Akio Okamoto, Yasuyuki Ikegami

題名：

Convective Boiling Heat Transfer Enhancement by Microgrooves in Plate Evaporator

発表情報：

Proceedings of the ASME/JSME 2011 8th Thermal Engineering Joint Conference AJTEC2011, March 13-17, 2011, Honolulu, Hawaii, USA

キーワード：

概要：

抄録：

In this experimental study, we investigate the enhancement of heat transfer in ammonia on a new plate evaporator whose surface is configured with microgrooves. The microgrooves have a depth of 30 μm and a width of 200 μm. The local boiling heat transfer coefficients were measured on the evaporator. To compare the heat transfer characteristics of the evaporator, the local boiling heat transfer coefficient on a flat surface and on two microgrooved surfaces—one vertical and one horizontal to the direction of the ammonia flow—were measured at different ranges of mass flux (2–7.5 kg/m2s), heat flux (10–20 kW/m2), and saturation pressure (0.7–0.9 MPa). The results show that the local boiling heat transfer coefficient of the horizontal and vertical microgrooved surfaces was larger than that of a flat surface. In particular, the horizontal microgrooved surface had the best heat transfer coefficient.

英語フィールド

Author：

Hirofumi Arima, Nobuhiko Matsuo, Keita Shigyou, Akio Okamoto, Yasuyuki Ikegami

Title：

Convective Boiling Heat Transfer Enhancement by Microgrooves in Plate Evaporator

Announcement information:

Proceedings of the ASME/JSME 2011 8th Thermal Engineering Joint Conference AJTEC2011, March 13-17, 2011, Honolulu, Hawaii, USA

An abstract：