contributor author | Bahman Abbasi | |
contributor author | Jungho Kim | |
date accessioned | 2017-05-09T00:45:04Z | |
date available | 2017-05-09T00:45:04Z | |
date copyright | May, 2011 | |
date issued | 2011 | |
identifier issn | 0022-1481 | |
identifier other | JHTRAO-27912#052201_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/146704 | |
description abstract | One of the main challenges of spray cooling technology is the prediction of local and average heat transfer coefficients on the heater surface. It is hypothesized that the local heat transfer coefficient can be predicted from the local normal pressure produced by the spray. In this study, hollow cone, full cone, and flat fan sprays, operated at three standoff distances, five spray pressures, and two nozzle orientations, were used to identify the relation between the impingement pressure and the heat transfer coefficient in the single-phase regime. PF-5060, PAO-2, and PSF-3 were used as test fluids, resulting in Prandtl number variation between 12 and 76. A microheater array operated at constant temperature was used to measure the local heat flux. A separate test rig was used to make impingement pressure measurements for the same geometry and spray pressure. The heat flux data were then compared with the corresponding impingement pressure data to develop a pressure-based correlation for spray cooling heat transfer. The maximum deviation between the experimental data and prediction was within ±25%. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Development of a General Dynamic Pressure Based Single-Phase Spray Cooling Heat Transfer Correlation | |
type | Journal Paper | |
journal volume | 133 | |
journal issue | 5 | |
journal title | Journal of Heat Transfer | |
identifier doi | 10.1115/1.4002779 | |
journal fristpage | 52201 | |
identifier eissn | 1528-8943 | |
keywords | Pressure | |
keywords | Heat transfer | |
keywords | Cooling | |
keywords | Sprays | |
keywords | Heat transfer coefficients | |
keywords | Fluids | |
keywords | Heat flux AND Nozzles | |
tree | Journal of Heat Transfer:;2011:;volume( 133 ):;issue: 005 | |
contenttype | Fulltext | |