Heat transfer enhancement in a corrugated tube

被引：104

作者：

Barba, A ^{[1
]}

Rainieri, S ^{[1
]}

Spiga, M ^{[1
]}

机构：

[1] Univ Parma, Dept Ind Engn, I-43100 Parma, Italy

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2002年 / 29卷 / 03期

关键词：

D O I：

10.1016/S0735-1933(02)00321-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Experimental results of heat transfer and pressure drop in a corrugated tube, used in chemical and food industry, are presented, for single-phase flow at moderate Reynolds numbers (100<Re<800). The working fluid is ethylene glycol, a highly viscous Newtonian fluid, in steady forced convection. The inside Nusselt numbers in the corrugated tube are improved very sensitively in comparison to the smooth wall, while the friction factor increases a factor of 1.83 - 2.45. The effects of Reynolds and Prandtl numbers on the enhanced heat transfer are presented. Based on the fitting of the experimental data, correlations of Nusselt number and friction factor are proposed for the periodically fully developed region. (C) 2002 Elsevier Science Ltd.

引用

页码：313 / 322

页数：10

共 16 条

[1] A REVIEW OF AUGMENTATION TECHNIQUES FOR HEAT-TRANSFER SURFACES IN SINGLE-PHASE HEAT-EXCHANGERS [J].