Effect of full length twisted tape inserts on heat transfer and friction factor enhancement with Fe3O4 magnetic nanofluid inside a plain tube: An experimental study

Sundar, L. Syam; Kumar, Nishant; Naik, M.T.; Sharma, K.V.

doi:10.1016/j.ijheatmasstransfer.2012.02.040

Cited by 100 publications

(22 citation statements)

References 22 publications

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“…Heat transfer enhancement characteristic in a circular tube fitted with conical ring and a twisted tape swirl generator has been investigated experimentally by Promvonge and Eiamsa [3]. The experimental investigation taken by L. Syamsundar were discussed an experimental study on effect of full length twisted tape inserts on heat transfer and friction enhancement were studied [4]. The Experimental and numerical analyses of heat transfer and friction factor of laminar flow were studied by many literature survey [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of Heat Transfer Enhancement in a Circular Tube With Different Twist Ratio of Twisted Tape Inserts

Sivakumar¹,

Rajan²

2015

IJHT

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An experimental investigation was carried for measuring heat transfer, Reynolds number, and friction factor fitted in concentric tube with twisted tape inserts. The different twist ratio y=2.52, 3.00 and 3.20 were studied for the laminar flow using computational fluid dynamics package. An aluminium inner tube of 18 mm internal diameter and 20mm outer diameter and 220mm length was used for experimental study. The outer tube material is mild steel of 28mm inner diameter and 32mm outer diameter was used for the experimental record. A copper twisted tape of different twist ratio of twist was inserted and the obtained plain tube data were verified with twisted tape inserts and ensure the validation of simulation results. The results are analyzed that the twisted tape accessible high heat transfer with increases in friction factor. In additionally the experimental value of twisted tape as compared with numerical simulation. A CFD package of commercial Ansys Fluent were utilized for simulate the twisted tape.

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Section: Introductionmentioning

confidence: 99%

Experimental Analysis of Heat Transfer Enhancement in a Circular Tube With Different Twist Ratio of Twisted Tape Inserts

Sivakumar¹,

Rajan²

2015

IJHT

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“…and dimpled tube have own benefits of lower pressure drop, less cost, easy installation and removal (Chandrasekar et al 2010;Suresh et al 2012;Saeedinia et al 2012;Hashemi & Akhavan-Behabadi 2012;SyamSundar et al 2012;Akbaridoust et al 2013;Kannadasan et al 2012). For augmentation of heat transfer rate MWCNT is a promising candidate in specified base fluid because it has shear thinning behaviour at boundary layers so it increases the thermal conductivity which is solely contributes to heat transfer rate (Garg et al 2009;Amrollahi et al 2010;Liu & Liao 2010;Akhavan-Behabadi et al 2012;Wang et al 2013;Ashtiani et al 2012;Fakoor-Pakdaman et al 2013;Kumaresan et al 2012;Kumaresan et al 2013).…”

Section: Discussionmentioning

confidence: 99%

A comprehensive review of experimental investigations of forced convective heat transfer characteristics for various nanofluids

Gupta

Arora

Kumar

et al. 2014

Int J Mech Mater Eng

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Nanofluids are suspension of nanoparticles (less than 100 nm) in the conventional base fluids. The dispersed solid metallic or non-metallic nanoparticles change the thermal properties like thermal conductivity, viscosity, specific heat, and density of the base fluid. Past studies focused on measuring the thermal properties of nanofluids. These suspended nanoparticles effectively improve the transport properties and heat transfer characteristics of the base fluids. Recently, heat transfer augmentation using suspensions of nanometre-sized solid particles in base liquids have been investigated by various research groups across the world. This paper reviews the state-of-the-art nanofluid studies in the area of forced convection heat transfer enhancement. The results for the heat transfer characteristics in internal flow with constant heat flux and constant wall temperature boundary conditions reported by various researchers have been compiled and reviewed. Further, in heat exchangers, the real boundary conditions are different from the constant heat flux and constant wall temperature boundary conditions. Over a span of 2 decades, the literature in this field is widespread; hence, this review would be useful for researchers to have a precise screening of a wide range of investigations in this area.

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“…So, this indicates that there may be a possibility of further augmentation of heat transfer by using turbulent promoters. Nanofluids flow in a tube with different kind of inserts is also available in the literature [26][27][28][29][30][31], but they considered single-nanoparticles for the preparation of nanofluids.…”

Section: Introductionmentioning

confidence: 99%

Heat transfer and friction factor of multi-walled carbon nanotubes–Fe 3 O 4 nanocomposite nanofluids flow in a tube with/without longitudinal strip inserts

Sundar

Otero‐Irurueta

Singh

et al. 2016

International Journal of Heat and Mass Transfer

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Effect of full length twisted tape inserts on heat transfer and friction factor enhancement with Fe3O4 magnetic nanofluid inside a plain tube: An experimental study

Cited by 100 publications

References 22 publications

Experimental Analysis of Heat Transfer Enhancement in a Circular Tube With Different Twist Ratio of Twisted Tape Inserts

Experimental Analysis of Heat Transfer Enhancement in a Circular Tube With Different Twist Ratio of Twisted Tape Inserts

A comprehensive review of experimental investigations of forced convective heat transfer characteristics for various nanofluids

Heat transfer and friction factor of multi-walled carbon nanotubes–Fe 3 O 4 nanocomposite nanofluids flow in a tube with/without longitudinal strip inserts

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