Current Issue
Welcome to the latest issue of the International Journal of Research in Engineering Sciences and Management (IJRESM). Our current issue, Volume [02], Issue [02], [July - December, 2025], features a diverse collection of cutting-edge research articles, reviews, and technical notes that reflect the latest advancements in various fields of engineering sciences and management. We are proud to present contributions from leading researchers and academics from around the world.
Volume-2, Issue-2, July- December, 2025Abstract:The heat transfer enhancement technology has attracted much attention taking environmental and economic concerns into account. Heat transfer can be enhanced using active and passive techniques. It has been seen that passive methods have been used to improve the efficiency of heat exchangers on account of their lower cost. This research work underscores the significance of dimpled tubes in increasing heat transfer rates, with studies showing practical applications over smooth tubes. The geometry of this new type of tube was made by exerting deep dimples on the conventional plain tube. Flow-field and heat transfer characteristics of deep dimpled tubes have been studied. Methodology includes experimental setup with a heat source and dimpled tubes, monitoring low rates, placing temperature sensors, and calculating heat transfer coefficients. From tabular values and plots it was found that using spherical dimples leads to a significant increase in the heat transfer rate as compared to that of a normal tube without dimples. Also, it was seen that the change of dimple arrangement from inline to staggered arrangement enhances the heat transfer characteristics to a noticeable amount as compared to others but may further be studied for higher scale implementation with some corresponding moderations.