An improved film evaporation correlation for saline water at sub-atmospheric pressures

Muhammad Wakil Shahzada, Kim Choon Ng, Kyaw Thu, Aung Myat, Chun Won Gee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


This paper presents an investigation of heat transfer correlation in a falling-film evaporator working with saline water at sub-atmospheric pressures. The experiments are conducted at different salinity levels ranging from 15000 to 90000 ppm, and the pressures were maintained between 0.92 to 2.81 kPa (corresponds to saturation temperatures of 5.9 – 23 0C). The effect of salinity, saturation pressures and chilled water temperatures on the heat transfer coefficient are accounted in the modified film evaporation correlations. The results are fitted to the Han & Fletcher's and Chun & Seban's falling-film correlations which are used in desalination industry. We modify the said correlations by adding salinity and saturation temperature corrections with respective indices to give a better agreement to our measured data.
Original languageEnglish (US)
Title of host publication4th International Meeting of Advances in Thermofluids, IMAT 2011
PublisherAIP Publishing
Number of pages7
ISBN (Print)9780735410329
StatePublished - Jun 30 2012

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01


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