Studies on post-dryout heat transfer in R-134a vertical flow
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چکیده
منابع مشابه
Experimental Study On R-134A Condensation Heat Transfer Characteristics In Plate And Shell Heat Exchangers
In this study, condensation heat transfer experiments were conducted with two types of plate and shell heat exchangers (P&SHE) using R-134A. An experimental refrigerant loop has been established to measure the condensation heat transfer coefficient of R-134A in a vertical P&SHE. Two vertical counter flow channels were formed in the P&SHE by stacking three plates of geometry with a corrugated tr...
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This work concerns dryout experiments in which a tube, initially containing water, filled up or partially filled and at 1,2 or 3 atmosphere pressures, is heated. The initial water column experience three thermal regions. The first region, called the first period, involves heating of the tube until saturation conditions are obtained in the water. Boiling of the water in the tube causes swelling ...
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1359-4311/$ see front matter 2009 Elsevier Ltd. A doi:10.1016/j.applthermaleng.2009.07.016 * Corresponding author. Tel.: +91 4422574680; fax E-mail address: [email protected] (A.R. Balakrishna This paper reports a study of heat transfer in the post-critical heat flux (post-CHF) regime under forced convective upflow conditions in a uniformly heated vertical tube of 12.7 mm internal diameter and ...
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This two-part study concerns the development of a generalized approach to predicting both Nucleate Boiling dominated and Convective Boiling dominated heat transfer in mini/micro-channel flows. Both heat transfer regimes exhibit substantial reduction in the heat transfer coefficient at the location of partial annular liquid film dryout, hence the need to ascertain the occurrence of this importan...
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ژورنال
عنوان ژورنال: International Journal of Advanced Nuclear Reactor Design and Technology
سال: 2021
ISSN: 2468-6050
DOI: 10.1016/j.jandt.2021.05.001