FORCED CONVECTION HEAT TRANSFER OF SUBCOOLED LIQUID HYDROGEN IN HORIZONTAL TUBES

被引：13

作者：

Tatsumoto, H. ^{[1
]}

Shirai, Y. ^{[2
]}

Shiotsu, M. ^{[2
]}

Hata, K. ^{[3
]}

Naruo, Y. ^{[4
]}

Kobayashi, H. ^{[4
]}

Inatani, Y. ^{[4
]}

Kinoshita, K. ^{[5
]}

机构：

[1] Japan Atom Energy Agcy, J PARC Ctr, Ibaraki 3191195, Japan

[2] Kyoto Univ, Dept Energy Sci & Technol, Sakyo Ku, Kyoto 6068501, Japan

[3] Kyoto Univ, Inst Adv Energy, Kyoto 6110011, Japan

[4] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan

[5] Kansai Elect Power Co Inc, Energy Use R&D Ctr, Amagasaki, Hyogo 6610974, Japan

来源：

ADVANCES IN CRYOGENIC ENGINEERING, VOLS 57A AND 57B | 2012年 / 1434卷

关键词：

Forced Convection; Liquid Hydrogen; Heat Transfer; DNB Heat Flux;

D O I：

10.1063/1.4706987

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Forced flow heat transfers of liquid hydrogen through horizontally-mounted tubes with the diameter of 3.0 mm and 6.0 mm were measured at the pressure of 0.7 MPa for various inlet temperatures and flow velocities. The measured non-boiling heat transfer coefficients agree with those by the Dittus-Boelter correlation. The heat fluxes at the onset of nucleate boiling and the departure from nucleate boiling (DNB) heat fluxes, where the heat transfer continuously changes to film boiling regime, are higher for higher flow velocity, larger subcooling and larger tube diameter. The DNB heat fluxes for the horizontally-mounted tube are slightly lower than those for the vertically-mounted tube, although the effect of the tube attitude direction disappears for a small tube diameter. The measured DNB heat fluxes agree with the correlation for vertically-mounted tubes.

引用

页码：747 / 754

页数：8

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