NDLI: Correlation of Sauter mean diameter and critical heat flux for spray cooling of small surfaces

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Correlation of Sauter mean diameter and critical heat flux for spray cooling of small surfaces

Content Provider	Semantic Scholar
Copyright Year	2003
Abstract	Abstraet--F',xperiments were performed to understand better nucleate boiling heat transfer and critical heat flux (CHF) for full cone sprays. The effects of spray nozzle, volumetric flux, subcooling and working fluid were investigated. Dense sprays greatly reduced evaporation efficiency, and their boiling curves exhibited an unusually small increase in slope upon transition between the single phase and nucleate boiling regimes. Sa~ater mean diameter (SMD) data were successfully correlated for fluids with vastly different values of surface tension. This correlation was based upon orifice diameter and the Weber and Reynolds numbers of the orifice flow prior to liquid breakup. Also developed was a new CHF correlation which accurately predicted data for FC-72, FC-87 and water. This correlation shows a strong dependence of CHF on volumetric flux and Sauter mean diameter. It is shown that by combining the correlations for CHF and SMD it is possible to predict accurately CHF for full cone sprays without having to conduct expensive and laborious drop sizing measurements for each individual nozzle.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://engineering.purdue.edu/BTPFL/BTPFL%20Publications/56.pdf
Language	English
Access Restriction	Open
Subject Keyword	Anatomical orifice Computer cooling Cool - action Cryptographic hash function Diameter (qualifier value) Experiment Flux qubit Heart failure Heat Stress Disorders Liquid substance Mean Diameter Mean field particle methods Nozzle Device Component Service Mapping Description Small Spray Dosage Form Storage Module Device Surface Tension Volumetric display Weber Zero suppression evaporation fluorocarbon 72
Content Type	Text
Resource Type	Article

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