Influence of wall temperature on condensation rate in duct flow of humid air: a comprehensive computational study

• DOI: 10.24425/ather.2024.151229
• Publication Date: 2024-07-12T12:58:06Z
• Authors: Jakub Bobrowski; Artur Gutkowski
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

In engineering phase-change phenomena are found in a multitude of applications, ranging from refrigeration and air con-ditioning to steam turbines petroleum refining. This study investigates the flow moist circular duct where water vapour condenses contact with cold wall duct. The investigation delves into relationship between condensation mass transfer rate, heat bulk wall, temperature wall. volume fluid model coupled Lee evaporation-condensation was employed. Five simulations were carried out, involving different temperatures while maintaining same inlet conditions. Condensation more pronounced at lower temperatures, which aligns expectations. decreased decreasing difference. Interestingly, findings revealed that surface coefficient increased as approached flow. success suggests potential applications optimising thermal management systems, implications for industries accurate predictions moisture behaviour crucial.