Department of Mechanical Engineering, IPS College of Technology and Management, Gwalior-474 001, Madhya Pradesh, India.
A systematic experimental investigation was conducted to evaluate the heat transfer performance of double pipe heat exchanger using Full Length Twisted Tape. Experiment was carried out under the full-length twisted tape inserts in double pipe heat exchanger and results are compared with the smooth double pipe heat exchanger. By inserting twisted tape inside the tube, they act as turbulence promoter.
The effect of the full-length twisted tape on the heat transfer coefficient and pressure drop is experimentally investigated in case of different mass flow rate. The performance evaluation of the smooth tube, and tube with full length tape was carried out on the basis of equal mass flow rates and unit pressure drop. It was found that on the basis of equal mass flow rate the heat transfer performance of full length twisted tape is maximum followed by smooth tube. On the basis of the unit pressure drop the heat transfer performance of smooth tube is maximum followed by full length twisted tape. It is also observed that with increase in flow rate of hot fluid, both heat transfer coefficient and pressure drop increases.
Heat, heat transfer, heat transfer coefficients, heat transfer enhancement, heat exchanger, turbulences promoters, Twist tape
