Enhancement of Nucleate Pool Boiling Heat Transfer with Sodium Oleate

Authors

  • KM Tanvir Ahmmed Department of Chemical Engineering, Bangladesh University of Engineering and Technology, BUET, Dhaka, 1000
  • Sultana Razia Syeda Department of Chemical Engineering, Bangladesh University of Engineering and Technology, BUET, Dhaka, 1000

DOI:

https://doi.org/10.3329/jce.v29i1.33819

Keywords:

Nucleate pool boiling, enhanced heat transfer, surfactant, surface roughness, surface tension

Abstract

In this study saturated nucleate pool boiling of water with sodium oleate surfactant on a horizontal cylindrical heater surface has been investigated experimentally and compared with that of demineralized water. The concentration of sodium oleate in water was 100-300 ppm. The experimental results show that a small amount of surfactant enhances the heat transfer coefficient significantly. At low surfactant concentrations, heat transfer coefficient increases with increasing surfactant concentration in water. The maximum heat transfer enhancement is found to be at 250 ppm of sodium oleate solution. By adding more surfactant to water, heat transfer coefficient is found to be lowered. Surface tension of different concentration of sodium oleate solutions is measured. It is observed that the maximum heat transfer coefficient is obtained at a surfactant concentration that corresponds to the critical micelle concentration (cmc) of the sodium oleate solution.

Journal of Chemical Engineering, Vol. 29, No. 1, 2017: 44-48

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Author Biography

KM Tanvir Ahmmed, Department of Chemical Engineering, Bangladesh University of Engineering and Technology, BUET, Dhaka, 1000



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Published

2017-08-31

How to Cite

Ahmmed, K. T., & Syeda, S. R. (2017). Enhancement of Nucleate Pool Boiling Heat Transfer with Sodium Oleate. Journal of Chemical Engineering, 29(1), 44–48. https://doi.org/10.3329/jce.v29i1.33819

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