Parametric Analysis of Tube in Tube Helical Coil Heat Exchanger at Constant Wall Temperature

Author(s):

Manish N. Kuvadiya , Parul institute of Engineering & Technology; Gopal Kumar Deshmukh, Parul institute of Engineering & Technology; Rankit A.Patel, Parul Group of Institute; Ramesh H.Bhoi, Parul Group of Institute

Keywords:

Counter Flow Heat Exchanger, D/d ratio, Friction factor, Nusselt number, Friction factor, LMTD

Abstract:

Working towards the goal of saving energies and to make compact the design for mechanical and chemical devices and plants, the enhancement of heat transfer is one of the key factors in design of heat exchangers. In this process without application of external power we can enhance the heat transfer rate by modifying the design by providing the helical tubes, extended surface or swirl flow devices. Helical tube heat exchanger finds applications in automobile, aerospace, power plant and food industries due to certain advantage such as compact structure, larger heat transfer surface area and improved heat transfer capability. In this project numerical studies of helical coil tube-in-tube heat exchanger for find out heat transfer at different D/d ratio. The turbulent flow model with counter flow heat exchanger is considered for analysis purpose. The effect of D/d ratio on heat transfer rate is found out for constant outer wall temperature boundary conditions. The D/d ratio is varied from 10 to 25 with an interval of 5. Nusselt number, friction factor and LMTD variation of inner fluid with respect to Reynolds number is finding out for different D/d ratio.

Other Details:

Manuscript Id	:	IJSTEV1I10146
Published in	:	Volume : 1, Issue : 10
Publication Date	:	01/05/2015
Page(s)	:	279-285

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