In this thesis, we present the heat transfer enhancement during nucleate boiling using structured surfaces prepared by electrodeposition. Modification of the surface properties is one of the main approaches to increase the intensity of boiling heat transfer, and electrodeposition induces porosity of the surface structure, which helps to ensure the inflow of liquid towards the boiling surface and thus prevents its dryout. We treated copper surfaces using the electrodeposition process, varying the treatment time and studying the influence of post-treatment by sintering. The heat transfer on the manufactured surfaces was evaluated under pool boiling conditions using saturated water at atmospheric pressure and focusing on the critical heat flux and heat transfer coefficients. We found that the electrodeposition time has no significant effect on the boiling heat transfer parameters on the developed surfaces, and the subsequent sintering treatment had an adverse effect on the surface resistance to thermomechanical stress during testing. The highest recorded value of the critical heat flux was 1735 kW/m2 on the structured surfaces, and 977 kW/m2 on the untreated surface. Compared to the untreated reference surface, we thus achieved an increase between 6% and 80% in the critical heat flux. We also improved the values of heat transfer coefficients by almost 100% compared to the reference surface.
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