Department of Mechanical Engineering, Priyadarshini Indira Gandhi College of Engineering, Digdoh Hills, Hingna Road, Nagpur, India
Online published on 24 October, 2017.
In the present study, the pressure drop and heat transfer characteristics of flow through circular tube with twisted tape insert is reported. In the experimental condition, a twisted-tape was inserted into the inner tube with various free spacing twisted-tapes: s = 2P, 3P, and 4P, respectively. All of the experiments were carried out at the same inlet condition with the Reynolds number of the inner tube, Re=2300 to 7500. The research show that the free spacing twisted-tapes, s = 2P gives the heat transfer lower than full length twisted tape around 5–15% while it can be decreased the pressure drop around 90%.
Heat Exchanger, Pressure drop, Free Spacing Twisted Tape, Swirl Flow
