Effect of helical perforated twisted tape parameters on thermal and hydrodynamic performance in heat exchanger circular tube

Effect of helical perforated twisted tape parameters like diameter ratio ( d R / D I ), relative pitch ratio ( P PT / L T ), perforation index ( P A / T A ) and Reynolds number( Re ) on the thermal and hydrodynamic performance of heat exchanger circular tube experimentally analysed. Experimental dat...

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Bibliographic Details
Published inHeat and mass transfer Vol. 56; no. 2; pp. 507 - 519
Main Authors Maithani, Rajesh, Kumar, Anil
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2020
Springer Nature B.V
Subjects
Aerodynamics
Air flow
Circular tubes
Engineering
Engineering Thermodynamics
Fluid dynamics
Fluid flow
Heat and Mass Transfer
Heat exchangers
Industrial Chemistry/Chemical Engineering
Original
Parameters
Reynolds number
Thermodynamics
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Summary:Effect of helical perforated twisted tape parameters like diameter ratio ( d R / D I ), relative pitch ratio ( P PT / L T ), perforation index ( P A / T A ) and Reynolds number( Re ) on the thermal and hydrodynamic performance of heat exchanger circular tube experimentally analysed. Experimental data pertinent to air flow and heat transfer is generated and thermal hydrodynamic performance is determined for different sets of helical perforated twisted tape insert and flow parameters. The highest value of thermal hydrodynamic is observed at d R / D I of 0.65, P PT / L T of 0.086 and P A / T A of 10%. The maximum value of the thermal hydrodynamic performance was found to be 2.12 for the range of parameters examined.
ISSN:0947-7411
1432-1181
DOI:10.1007/s00231-019-02716-9