Optimisation of Double Pipe Helical Tube Heat Exchanger and its Comparison with Straight Double Tube Heat Exchanger

Optimization of double pipe helical coil heat exchanger with various optimizing parameters and its comparison with double pipe straight tube are the prime objectives of this paper. Numerical studies were performed with the aid of a commercial computational fluid dynamics package ANSYS FLUENT 14. In...

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Bibliographic Details
Published in:Journal of the Institution of Engineers (India) Series C 2017-10, Vol.98 (5), p.587-593
Main Author: Kareem, Rashid
Format: Article
Language:English
Subjects:
Aerospace Technology and Astronautics
CAD
Circularity
Coiling
Coils
Computational fluid dynamics
Computer aided design
Cross-sections
Engineering
Fluid flow
Heat exchangers
Heat transfer
Industrial and Production Engineering
Mechanical Engineering
Optimization
Original Contribution
Pipes
Pressure drop
Repair & maintenance
Turbulence
Turbulent flow
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Summary:Optimization of double pipe helical coil heat exchanger with various optimizing parameters and its comparison with double pipe straight tube are the prime objectives of this paper. Numerical studies were performed with the aid of a commercial computational fluid dynamics package ANSYS FLUENT 14. In this paper the double pipe helical coil is analysed under turbulent flow conditions for optimum heat exchanger properties. The parameters used for optimization are cross-sectional shape and taper angles. Optimization analysis is being carried out for finding best cross sectional shape of heat exchanger coils by using rectangular, square, triangular and circular cross-sections. The tapered double pipe helical coil is then analysed for best heat transfer and pressure drop characteristics by varying the angle of taper. Finally, an optimum coil on the basis of all the analysis is selected. This optimized double pipe helical coil is compared with double pipe straight tube of equivalent cross-sectional area and length as that of unwounded length of double pipe helical coil.
ISSN:2250-0545
2250-0553
DOI:10.1007/s40032-016-0261-x