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Heat transfer in Pool Boiling of Ammonia/Water Mixture

発表形態:
原著論文
主要業績:
その他
単著・共著:
共著
発表年月:
2003年07月
DOI:
会議属性:
指定なし
査読:
有り
リンク情報:
Heat and Mass Transfer

日本語フィールド

著者:
Hirofumi ARIMA, Masanori MONDE, Yuhichi MITSUTAKE
題名:
Heat transfer in Pool Boiling of Ammonia/Water Mixture
発表情報:
Heat and Mass Transfer 巻: 39 号: 7 ページ: 535-543
キーワード:
Ammonia/water mixture, Heat transfer coefficient,Pool boiling
概要:
抄録:
The nonazeotropic binary mixtures such as, methanol/water, ethanol/water and ammonia/water, have variable boiling and dew points, depending on the combination of substance and those mass fraction. It is expected to have a higher performance as a result of decreasing the thermodynamically irreversible loss, when there is a relevant mass fraction. Therefore, ammonia/water mixture is expected to use as working fluid in small temperature difference power generation cycles and absorption refrigeration cycles. However, few experiments were carried out for measuring heat transfer coefficient for ammonia/water mixture in the world. An experimental study has been carried out to measure boiling heat transfer coefficient of an ammonia/water mixture on a horizontal heated surface at low pressure of 0.2, 0.4 and 0.7 MPa and at low mass fraction of 0 < C < 0.27 and at high pressure 0.7, 1.0 and 1.5 MPa and at mass fraction of 0.5 < C < 1.0 and at heat flux under critical heat flux the heat transfer coefficient are compared with existing correlations prediction and a revised correlation can be proposed to predict them well.

英語フィールド

Author:
Hirofumi ARIMA, Masanori MONDE, Yuhichi MITSUTAKE
Title:
Heat transfer in Pool Boiling of Ammonia/Water Mixture
Announcement information:
Heat and Mass Transfer Vol: 39 Issue: 7 Page: 535-543
Keyword:
Ammonia/water mixture, Heat transfer coefficient,Pool boiling
An abstract:
The nonazeotropic binary mixtures such as, methanol/water, ethanol/water and ammonia/water, have variable boiling and dew points, depending on the combination of substance and those mass fraction. It is expected to have a higher performance as a result of decreasing the thermodynamically irreversible loss, when there is a relevant mass fraction. Therefore, ammonia/water mixture is expected to use as working fluid in small temperature difference power generation cycles and absorption refrigeration cycles. However, few experiments were carried out for measuring heat transfer coefficient for ammonia/water mixture in the world. An experimental study has been carried out to measure boiling heat transfer coefficient of an ammonia/water mixture on a horizontal heated surface at low pressure of 0.2, 0.4 and 0.7 MPa and at low mass fraction of 0 < C < 0.27 and at high pressure 0.7, 1.0 and 1.5 MPa and at mass fraction of 0.5 < C < 1.0 and at heat flux under critical heat flux the heat transfer coefficient are compared with existing correlations prediction and a revised correlation can be proposed to predict them well.


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