Heat Transfer Characteristics of a Low-Pressure-Loss Fluidized-Bed Heat Exchanger with Bare Tube Banks.

裸管束低压损流化床换热器的传热特性。

• 批准号: 60460107
• 负责人: AIHARA Toshio
• 金额: $ 4.8万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60460107/
• 关键词: Convective Heat Transfer; Multiphase Flow; Fluidized-bed Heat Exchanger; Tube Bundle; Impinging Jet; 衝突噴流; 圧力損失

A novel low-pressure-loss fluidized-bed heat exchanger has been developed for application to air-cooled heat-exchanger units operated with low-pressure fans; this fluidized-bed was composed of a multi-slit distributor, and glass beads. The measured performance of heat-transfer and fluidization was excellent and satisfactory, though the static bed height was extremely low. In the best case, where the static bed height was 13mm and the distance between the multi-slit distributor and the tubes 10mm, the present fluidized-bed exhibited a heattransfer performance comparable to a conventional one having a perforated plate distributor and a static bed height of 150mm, while the present bed showed one fourteenth the pressure drop of the conventional one.

本文介绍了一种新型的低压损失流化床换热器，它由多缝分布器和玻璃珠组成，适用于低压风机运行的风冷换热器。虽然静态床层高度很低，但传热和流化性能良好。在最佳情况下，当静态床层高度为13 mm，多狭缝分布器与管之间的距离为10 mm时，本发明的流化床表现出与具有多孔板分布器和静态床层高度为150 mm的常规流化床相当的传热性能，而本发明的流化床显示出常规流化床的十四分之一的压降。

项目成果

円山重直,相原利雄,田中義昭,笠原敬介: 第24回日本伝熱シンポジウム講演論文集. (1987)

Shigenao Maruyama、Toshio Aihara、Yoshiaki Tanaka、Keisuke Kasahara：第 24 届日本传热研讨会论文集（1987 年）。

相原利雄,円山重直,綾淳,本郷三夫: 日本機械学会論文集(B編). 52. 1718-1725 (1986)

Toshio Aihara、Shigenao Maruyama、Jun Aya、Mitsuo Hongo：日本机械工程师学会会议记录（B 版）52。1718-1725 (1986)。

Toshio AIHARA, Shigenao MARUYAMA, Sunao AYA, and Mitsuo HONGOH: "Heat Transfer Characteristics of a Low-Pressure-Loss Fluidized-Bed Heat Exchanger with Single Row Tubes" Transactions of Japan Society of Mecahnical Engineers. 52-476. 1718-1725 (1985)

Toshio AIHARA、Shigenao MARUYAMA、Sunao AYA 和 Mitsuo HONGOH：“单排管低压损失流化床热交换器的传热特性”日本机械工程师学会会刊。

Shigenao MARUYAMA, Toshio AIHARA, Yoshiteru TANAKA, and Keisuke KASAHARA: "Heat Transfer from a Low Pressure Loss Fluidized Bed Heat Exchanger with Multiple Row Tube Banks." Proceedings of the 24th Heat Transfer Symposium of Japan. (1987)

Shigenao MARUYAMA、Toshio AIHARA、Yoshiteru TANAKA 和 Keisuke KASAHARA：“具有多排管组的低压损失流化床热交换器的传热。”