Experimental Investigation of Developing Spray Boiling on a Flat Flake Surface with Constant Heat Flux

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Experimental study on the heat transfer of water spray droplets impinging the surface of a stainless flat flake positioned in both horizontal and vertical direction has been carried under different spray flow rates and distances between nozzle outlet and the surface. A linear relationship between heat transfer coefficient and heat flux is found in the nonboiling region. The total heat flux is dominated sequentially by the single phase impinging convection and the fully developed boiling with increasing heat flux imposed. The wall temperature of the impinged-on surface rises very slowly with the increasing heat flux when it reaches around 110°C indicating a greatly enhanced boiling heat transfer coefficient. A new data reduction method is proposed since conventionally calculated heat transfer coefficient is found not physically interpretable in transition to fully developed boiling.

Original languageEnglish
Title of host publicationProgress in Systems Engineering - Proceedings of the 23rd International Conference on Systems Engineering
PublisherSpringer Verlag
Pages107-112
Number of pages6
ISBN (Print)9783319084213
DOIs
StatePublished - 2015
Externally publishedYes
Event23rd International Conference on Systems Engineering, ICSEng 2014 - Las Vegas, NV, United States
Duration: 19 Aug 201421 Aug 2014

Publication series

NameAdvances in Intelligent Systems and Computing
Volume1089
ISSN (Print)2194-5357

Conference

Conference23rd International Conference on Systems Engineering, ICSEng 2014
Country/TerritoryUnited States
CityLas Vegas, NV
Period19/08/1421/08/14

Keywords

  • Developing Boiling Heat Transfer
  • Microdroplets
  • Single Phase Impinging Convection
  • Spray Evaporation

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