contributor author | Christopher A. Konishi | |
contributor author | Frank E. Pfefferkorn | |
contributor author | Weilin Qu | |
date accessioned | 2017-05-09T00:32:19Z | |
date available | 2017-05-09T00:32:19Z | |
date copyright | June, 2009 | |
date issued | 2009 | |
identifier issn | 1528-9044 | |
identifier other | JEPAE4-26295#021010_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/140309 | |
description abstract | This study concerns pressure drop of adiabatic water liquid-vapor two-phase flow across an array of 1950 staggered square micropin-fins having a 200×200 μm cross section by 670 μm height. The ratios of longitudinal pitch and transverse pitch to pin-fin equivalent diameter are equal to 2. An inline immersion heater upstream of the micropin-fin test module was employed to produce liquid-vapor two-phase mixture, which flowed across the micropin-fin array. The test module was well insulated to maintain adiabatic condition. Four maximum mass velocities of 184 kg/m2 s, 235 kg/m2 s, 337 kg/m2 s, and 391 kg/m2 s, and a range of vapor qualities for each maximum mass velocity were tested. Measured pressure drop increases drastically with increasing vapor quality. Nine existing two-phase pressure drop models and correlations were assessed. The Lockhart–Martinelli correlation for laminar liquid-laminar vapor combination in conjunction with a single-phase friction factor correlation proposed for the present micropin-fin array provided the best agreement with the data. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Experimental Study of Water Liquid-Vapor Two-Phase Pressure Drop Across an Array of Staggered Micropin-Fins | |
type | Journal Paper | |
journal volume | 131 | |
journal issue | 2 | |
journal title | Journal of Electronic Packaging | |
identifier doi | 10.1115/1.3104028 | |
journal fristpage | 21010 | |
identifier eissn | 1043-7398 | |
keywords | Flow (Dynamics) | |
keywords | Vapors | |
keywords | Fins | |
keywords | Pressure drop | |
keywords | Water | |
keywords | Friction AND Two-phase flow | |
tree | Journal of Electronic Packaging:;2009:;volume( 131 ):;issue: 002 | |
contenttype | Fulltext | |