A comparative study of pool boiling of acetone with anionic and cationic surfactant on coated aluminum surface
摘要
The present article discusses the pool boiling of acetone mixed different surfactant like Sodium Lauryl Sulphate (SLS) and Cetyltrimethylammonium Bromide (CTAB). The aqueous solution is prepared with different concentrations of surfactant such as 200 ppm, 400 ppm and 600 ppm. The heat transfer coefficient is found to be enhanced with SLS based solution. The pool boiling is carried out on the surface of TiO2 coated aluminium surface. The High Velocity Oxygen Fuel (HVOF) method is used for coating the aluminium surface. The enhancement factor for the pool boiling of SLS based solution of acetone is found to be 3.2 times than the CTAB based solution with a heat flux of 25.454 kW/m2. However, the enhancement factor is reduced with the increase of heat flux for both the solution of acetone. The Critical Micelle Concentration (CMC) is found to be 400 ppm for the pool boiling of SLS and CTAB based acetone solution. Overall, this study helps to understand the potential use of both types of surfactant: anionic and cationic in improving the pool boiling heat transfer. Additionally, it explores the use of TiO2 coating on aluminium surface for further improvement in heat transfer. The combined approach can serve as an effective strategy for thermal management applications.