High quality flow boiling heat transfer and pressure drop in microgap pin fin arrays

被引：64

作者：

Reeser, A. ^{[1
]}

Bar-Cohen, A. ^{[1
]}

Hetsroni, G. ^{[2
]}

机构：

[1] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA

[2] Technion Israel Inst Technol, Dept Mech Engn, IL-32000 Haifa, Israel

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2014年 / 78卷

关键词：

Two-phase; Flow boiling; Micro pin fins; High vapor quality; Staggered; In-line; PREDICTION;

D O I：

10.1016/j.ijheatmasstransfer.2014.05.021

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

We investigated two phase heat transfer in staggered and inline micro pin fin arrays, using deionized water and HFE-7200 as working fluids with exit qualities up to 90%. The inline and staggered arrays were wire EDM fabricated to have equivalent pin fin width of 153 mu m and height of 305 mu m on a heated base area of 0.96 cm width by 2.88 cm length. Mass fluxes ranged from 200 to 600 kg/m(2) s for HFE-7200 and 400 to 1300 kg/m(2) s for water. Base heat fluxes ranged from 27 to 118 W/cm(2) for water, and 1 to 36 W/cm(2) for HFE-7200. Average heat transfer coefficient and pressure drop data were obtained and successfully correlated to 3% MAE for water heat transfer coefficient, 10-13% MAE for HFE-7200 heat transfer coefficient, and 15-30% MAE for pressure drop in these pin fin arrays. (c) 2014 Elsevier Ltd. All rights reserved.

引用

页码：974 / 985

页数：12

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