TY - GEN
T1 - An improved film evaporation correlation for saline water at sub-atmospheric pressures
AU - Shahzada, Muhammad Wakil
AU - Ng, Kim Choon
AU - Thu, Kyaw
AU - Myat, Aung
AU - Gee, Chun Won
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
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U2 - 10.1063/1.4704324
DO - 10.1063/1.4704324
M3 - Conference contribution
AN - SCOPUS:84874404988
SN - 9780735410329
T3 - AIP Conference Proceedings
SP - 1085
EP - 1091
BT - 4th International Meeting of Advances in Thermofluids, IMAT 2011
T2 - 4th International Meeting of Advances in Thermofluids, IMAT 2011
Y2 - 3 October 2011 through 4 October 2011
ER -