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    Development of a General Dynamic Pressure Based Single-Phase Spray Cooling Heat Transfer Correlation

    Source: Journal of Heat Transfer:;2011:;volume( 133 ):;issue: 005::page 52201
    Author:
    Bahman Abbasi
    ,
    Jungho Kim
    DOI: 10.1115/1.4002779
    Publisher: The American Society of Mechanical Engineers (ASME)
    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%.
    keyword(s): Pressure , Heat transfer , Cooling , Sprays , Heat transfer coefficients , Fluids , Heat flux AND Nozzles ,
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      Development of a General Dynamic Pressure Based Single-Phase Spray Cooling Heat Transfer Correlation

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    http://yetl.yabesh.ir/yetl1/handle/yetl/146704
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    contributor authorBahman Abbasi
    contributor authorJungho Kim
    date accessioned2017-05-09T00:45:04Z
    date available2017-05-09T00:45:04Z
    date copyrightMay, 2011
    date issued2011
    identifier issn0022-1481
    identifier otherJHTRAO-27912#052201_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/146704
    description abstractOne 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%.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleDevelopment of a General Dynamic Pressure Based Single-Phase Spray Cooling Heat Transfer Correlation
    typeJournal Paper
    journal volume133
    journal issue5
    journal titleJournal of Heat Transfer
    identifier doi10.1115/1.4002779
    journal fristpage52201
    identifier eissn1528-8943
    keywordsPressure
    keywordsHeat transfer
    keywordsCooling
    keywordsSprays
    keywordsHeat transfer coefficients
    keywordsFluids
    keywordsHeat flux AND Nozzles
    treeJournal of Heat Transfer:;2011:;volume( 133 ):;issue: 005
    contenttypeFulltext
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