Numerical investigations of flow and heat transfer enhancement in a corrugated channel using nanofluid

Ahmed, M. A.; Shuaib, N. H.; Yusoff, Mohd Zamri; Al-Falahi, Amir

doi:10.1016/j.icheatmasstransfer.2011.08.013

Cited by 137 publications

(42 citation statements)

References 29 publications

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“…3). In addition, the average Nusselt number and heat transfer enhancement for different Reynolds numbers and different volume fractions of nanoparticles was performed by Ahmed et al [38] have also been calculated, and the present results are in a good agreement as shown in Fig. 4.…”

Section: Code Validationsupporting

confidence: 79%

Design characteristics of corrugated trapezoidal plate heat exchangers using nanofluids

Abed

Alghoul

Sopian

et al. 2015

Chemical Engineering and Processing: Process Intensification

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Section: Code Validationsupporting

confidence: 79%

Design characteristics of corrugated trapezoidal plate heat exchangers using nanofluids

Abed

Alghoul

Sopian

et al. 2015

Chemical Engineering and Processing: Process Intensification

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“…Extensive research has been carried out previously on the heat transfer characteristics of PHEs experimentally with different chevron angles, herringbone types, etc. [4][5][6][7]. However, most of the research has been done on PHEs using conventional fluids, such as water, ethylene glycol as a heat transfer fluid.…”

Section: Introductionmentioning

confidence: 99%

Heat transfer and pressure drop characteristics of a plate heat exchanger using water based Al2O3 nanofluid for 30° and 60° chevron angles

et al. 2018

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Nanofluid is a new class of engineering fluid that has good heat transfer characteristics which is essential to increase the heat transfer performance in various engineering applications such as heat exchangers and cooling of electronics. In this study, experiments were conducted to compare the heat transfer performance and pressure drop characteristics in a plate heat exchanger (PHE) for 30°and 60°chevron angles using water based Al 2 O 3 nanofluid at the concentrations from 0 to 0.5 vol.% for different Reynolds numbers. The thermo-physical properties has been determined and presented in this paper. At 0.5 vol% concentration, the maximum heat transfer coefficient, the overall heat transfer coefficient and the heat transfer rate for 60°chevron angle have attained a higher percentage of 15.14%, 7.8% and 15.4%, respectively in comparison with the base fluid. Consequently, when the volume concentration or Reynolds number increases, the heat transfer coefficient and the overall heat transfer coefficient as well as the heat transfer rate of the PHE (Plate Heat Exchangers) increases respectively. Similarly, the pressure drop increases with the volume concentration. 60°chevron angle showed better performance in comparison with 30°chevron angle.

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“…Sharma et al [19] investigated on laminar forced convection heat transfer improvement using Al2O3-water nanofluid in a circular tube fitted with twisted tape inserts. Ahmed et al [20] observed experimentally heat transfer and pressure drop behavior in an isothermally heated V-shaped corrugated channel with CuO-water nanofluid.…”

Section: Introductionmentioning

confidence: 99%

Heat transfer enhancement and pumping power optimization using CuO-water nanofluid through rectangular corrugated pipe

Salehin

Ehsan

Islam

2017

AIP Conference Proceedings

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Abstract. Heat transfer enhancement by corrugation in fluid domain is a popular method. The rate of improvement is more when it is used highly thermal conductive fluid as heating or cooling medium. In this present study, heat transfer augmentation was investigated numerically by implementing corrugation in the fluid domain and nanofluid as the base fluid in the turbulent forced convection regime. Finite volume method (FVM) was applied to solve the continuity, momentum and energy equations. All the numerical simulations were considered for single phase flow. A rectangle corrugated pipe with 5000 W/m 2 constant heat flux subjected to the corrugated wall was considered as the fluid domain. In the range of Reynolds number 15000 to 40000, thermo-physical and hydrodynamic behavior was investigated by using CuO-water nanofluid from 1% to 5% volume fraction as the base fluid through the corrugated fluid domain. Corrugation justification was performed by changing the amplitude of the corrugation and the corrugation wave length for obtaining the increased heat transfer rate with minimum pumping power. For using CuO-water nanofluid, augmentation was also found more in the rectangle corrugated pipe both in heat transfer and pumping power requirement with the increase of Reynolds number and the volume fraction of nanofluid. For the increased pumping power, optimization of pumping power by using nanofluid was also performed for economic finding.Keywords: Heat transfer enhancement, Forced convection, Rectangular corrugation, Nanofluid, Pumping power.

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Numerical investigations of flow and heat transfer enhancement in a corrugated channel using nanofluid

Cited by 137 publications

References 29 publications

Design characteristics of corrugated trapezoidal plate heat exchangers using nanofluids

Design characteristics of corrugated trapezoidal plate heat exchangers using nanofluids

Heat transfer and pressure drop characteristics of a plate heat exchanger using water based Al2O3 nanofluid for 30° and 60° chevron angles

Heat transfer enhancement and pumping power optimization using CuO-water nanofluid through rectangular corrugated pipe

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