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.

已经开发了一种新型的低压流化床热交换器，以应用于用低压风扇操作的气冷热交换器单元。该流体床由多缝分配器和玻璃珠组成。尽管静态床的高度极低，但测得的热转移和流化的性能非常出色且令人满意。在最好的情况下，静态床高度为13mm，并且多缝分配器和管子10mm之间的距离，目前的流化床表现出与具有穿孔板分配器和静态床高度的传统床相当的热转移性能150mm的床显示了传统床的压力下降14。

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。”