Performance Analysis of Double Pipe Heat Exchanger with Annular Twisted Tape Insert
Snehal S. Pachegaonkar1, Santosh G. Taji2, Narayan Sane3
1Ms Snehal S. Pachegaonkar, Department of Mechanical, Nutan Maharashtra Institute of Engineering and Technilogy, Pune, Maharashtra, India.
2Prof. Santosh G. Taji,  Professor, Department of Mechanical Engineering, PES’s Modern College of Engineering, Shivajinagar, Pune, Maharashtra, India.
3Prof. Narayan Sane, Retired Professor, Department of Mechanical Engineering, Walchand College of Engineering, Sangli Maharashtra, India.
Manuscript received on January 23, 2014. | Revised Manuscript received on February 16, 2014. | Manuscript published on February 28, 2014. | PP: 402-406  | Volume-3, Issue-3, February 2014. | Retrieval Number:  C2748023314/2013©BEIESP

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Abstract: The purpose of this paper is to analyse heat transfer and pressure drop characteristics of Double pipe heat exchanger with annular twisted tape insert. Experiment has been performed on three set-ups: Plain double pipe heat exchanger used as a reference and two different angled twisted tapes inserts. The effect of twist angle on heat transfer coefficient and pressure drop are determined. Experiment using plain pipe is carried out for comparison. The experimental result reveal that both heat transfer coefficient and pressure drop in the pipe with twisted tape, are higher than those in the plain pipe.
Keywords: Double pipe heat exchanger, Twisted tape, Heat transfer coefficient, Heat transfer enhancement, Pressure drop.