Abstract—The development of high-performance thermal systems has increased interest in heat transfer enhancement techniques. Heat transfer augmentation techniques refer to different method used to increase rate of heat transfer without affecting much the overall performance of the system. Heat exchangers are widely used in industry both for cooling and heating. Creation of turbulence with the help of twisted tape in the flow passage is one of the favorable passive heat transfer augmentation techniques due to their advantages of easy fabrication, operation as well as low maintenance. The purpose of this review presents the effect of twisted tape inserts on the heat transfer enhancement, pressure drop, flow friction and thermal performance factor characteristics in a heat exchanger tube.

Index Terms—Heat transfer, Twisted tape inserts, Flow friction, Turbulance, Swirl flow motion

Cite: Mukesh P Mangtani and K M Watt, "Effect of Twisted-Tape Inserts on Heat Transfer in a Tube—A Review ," International Journal of Mechanical Engineering and Robotics Research, Vol.4, No. 2, pp. 97-104, April 2015.