Abstract
In this work, an experimental and CFD analysis of concentric heat exchangers with smooth and spherical dimple pipes in different mass streams with water as a working medium is presented. Heat transfer technology refers to various methods used to increase the heat transfer rate without significantly affecting the overall system performance. Over the past decade, several studies have reported indirect technology for heat transfer. The present study on the change of the inner tube to the concentric tubular with dimpled tube. The effect of the tubing on the heat transfer rate, heat transfer coefficient and efficiency are compared with the simple hose for different flow rates. Experimental and CFD results show that the use of water in a spherical, binary tube increases the flow rate, overall heat transfer coefficient and also efficiency in comparison to a simple tube.
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