Effect of the segmented fin height on the air-side performance of serrated welded spiral fin-and-tube heat exchangers

被引：14

作者：

Keawkamrop, Thawatchai ^{[1
]}

Mesgarpour, Mehrdad ^{[1
]}

Dalkilic, Ahmet Selim ^{[2
]}

Ahn, Ho Seon ^{[3
]}

Mahian, Omid ^{[4
,5
]}

Wongwises, Somchai ^{[1
,6
]}

机构：

[1] King Mongkuts Univ Technol Thonburi KMUTT, Fac Engn, Dept Mech Engn, Fluid Mech Thermal Engn & Multiphase Flow Res Lab, Bangkok 10140, Thailand

[2] Yildiz Tech Univ, Dept Mech Engn, Istanbul, Turkey

[3] Incheon Natl Univ, Dept Mech Engn, Incheon, South Korea

[4] Xi An Jiao Tong Univ, Sch Chem Engn & Technol, Xian, Peoples R China

[5] Tomsk State Univ, Lab Convect Heat & Mass Transfer, Tomsk 634045, Russia

[6] Natl Sci & Technol Dev Agcy NSTDA, Pathum Thani 12120, Thailand

来源：

CASE STUDIES IN THERMAL ENGINEERING | 2022年 / 35卷

关键词：

Fin; Spiral fin; Segmented fin; Fin pitch; Heat exchanger; PRESSURE-DROP; FRICTION CHARACTERISTICS; MULTIPASS PARALLEL; PITCHES; OPTIMIZATION; NUMBER; BANKS;

D O I：

10.1016/j.csite.2022.102128

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Serrated welded spiral fin-and-tube heat exchangers (SWSFTHXs) are experimentally investigated. The work primarily focuses on the effects of the segmented fin height (h(s)) with various fin pitches (f(p)) on the air-side performance (ASP). Experimental results show that SWSFTHXs provide a higher air-side heat transfer coefficient than the plain welded spiral fin-and-tube heat exchangers (PWSFTHXs) at the same f(p). The h(s) has a significant effect on the Nusselt number (Nu) and Colburn factor (j), whereas f(p) clearly has a greater effect on the friction factor (f) and Euler number (Eu) than h(s). Furthermore, the Nu, j, f, and Eu correlations for PWSFTHXs and SWSFTHXs are also proposed.

引用

页数：13

共 28 条

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