Optimization of Laminar Convection on the Shell-Side of Double Pipe with Triangular Fins

Iqbal, Zafar; Ishaq, Muhammad; Syed, K.S.

doi:10.1007/s13369-013-0751-6

Cited by 10 publications

(16 citation statements)

References 9 publications

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“…If the sole objective is to achieve the highest heat transfer coefficient irrespective of the rise in pressure loss, then usually the Nusselt number is used as an objective function, as has been done in the investigations [7][8][9]. However, if the available pumping power is limited and the pressure drop is of concern, then it is necessary to minimize the frictional loss together with the maximization of the Nusselt number.…”

Section: Optimization Problem and Its Solutionmentioning

confidence: 99%

“…Such types of finned ducts have been optimized by either optimizing the fin shape for specified geometry parameters [3][4][5] or by finding the optimum values of the configuration parameters for a given fin profile [6][7][8][9]. The detail of categorization of the problems and relevant literature review can be found in [2].…”

mentioning

confidence: 99%

“…The hydraulic and thermal performance of the optimum configurations has been evaluated by appropriate performance measures, and various optimum configurations have been proposed according to different concerns of the designers. In [7][8][9], optimum configurations were investigated by considering the Nusselt number as an objective function. A comparison of the optimum configurations based on both of these objective functions for both types of characteristic lengths has been given.…”

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confidence: 99%

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Optimum Convection Through Parabolic Fins in Annulus of Double Pipe

Iqbal¹,

Syed

Ishaq

2015

Journal of Thermophysics and Heat Transfer

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Optimum configurations of the parabolic finned annulus have been investigated for maximum convection by employing a genetic algorithm. The objective of the work is to enhance the heat transfer rate and minimize the pressure loss in the flow direction for optimum use of thermal energy and savings of cost. Flow is considered to be steady, laminar, incompressible, and fully developed, subjected to the constant heat flux boundary condition imposed at the finned inner pipe, made up of highly conductive material. A comparison of the present optimum configurations has been carried out with those based on the Nusselt number as an objective function. The results indicate that the present objective function gives, in many cases, cost-and weight-efficient optimum configurations with considerable reduction in pressure loss and provides optimum use of thermal energy along with handsome savings of cost. A comparison of the present optimum configurations of parabolic fins has also been carried out with those of trapezoidal and triangular fins. The results indicate that no single shape is best in all the situations and for all the criteria. The performance evaluation and comparison led to some very interesting findings regarding the configurations of the finned annulus and the choice of the objective function. The local results show that the fin tip plays a vital role for promoting the higher heat transfer rate.

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Section: Optimization Problem and Its Solutionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Optimum Convection Through Parabolic Fins in Annulus of Double Pipe

Iqbal¹,

Syed

Ishaq

2015

Journal of Thermophysics and Heat Transfer

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“…Their results showed that the performance of ECT is better than classical twist tape. Iqbal et al [21] reported many optimum FDP configurations using genetic algorithm based on the weight, heat quantity, cost, and structural integrity of FDP. Syed et al [22] numerically investigated FDP with variable thickness of the tip of the triangular fins.…”

Section: Introductionmentioning

confidence: 99%

A Conjugate Heat Transfer Analysis of a Triangular Finned Annulus Based on DG-FEM

Ishaq

Syed

Iqbal³

et al. 2018

Mathematical Problems in Engineering

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A DG-FEM based numerical investigation has been performed to explore the influence of the various geometric configurations on the thermal performance of the conjugate heat transfer analysis in the triangular finned double pipe heat exchanger. The computed results dictate that Nusselt number in general rises with values of the conductivity ratio of solid and fluid, for the specific configuration parameters considered here. However, the performance of these parameters shows strong influence on the conductivity ratio. Consequently, these parameters must be selected in consideration of the thermal resistance, for better design of heat exchanger.

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“…Numerous active and passive techniques are available in the literature which aids in enhancing the heat transfer characteristics of conventional fluids [1][2][3][4][5][6][7]. But the heat transfer augmentation through these techniques has reached a bottleneck.…”

Section: Introductionmentioning

confidence: 99%

Forced Convective Heat Transfer of MWCNT/Water Nanofluid Under Constant Heat Flux: An Experimental Investigation

et al. 2015

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This research article investigates the effect of multi-walled carbon nanotubes (MWCNT)/water nanofluid on convective heat transfer in a uniformly heated copper tube under laminar flow regime. The MWCNT were synthesized using chemical vapor deposition method and characterized using transmission electron microscope. These nanoparticles were dispersed (with 0.05, 0.1, 0.3 and 0.5 % weight concentrations) in distilled water to form stable suspensions of nanofluids. The heat transfer coefficients (HTC) of nanofluids and distilled water (base fluid) were evaluated and compared using constant velocity basis. The thermophysical properties of nanofluids change with the addition of nanoparticles; thus, we have considered the constant velocity criteria which provide the true comparison in contrast to constant Reynolds number used by earlier researchers. The effect of flow velocity (0.166-0.232 m/s) and nanoparticles weight concentration on the HTC considering constant heat flux boundary conditions was studied. It is observed that with the increase in the weight concentration of nanoparticles or flow velocity, the HTC increases. Nanofluids show higher HTC with respect to distilled water at all the concentrations of nanoparticles. At 0.5 wt.% weight concentration and flow velocity of 0.232 m/s, the maximum HTC obtained is 77.60 % in comparison with distilled water. B Munish Gupta

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Optimization of Laminar Convection on the Shell-Side of Double Pipe with Triangular Fins

Cited by 10 publications

References 9 publications

Optimum Convection Through Parabolic Fins in Annulus of Double Pipe

Optimum Convection Through Parabolic Fins in Annulus of Double Pipe

A Conjugate Heat Transfer Analysis of a Triangular Finned Annulus Based on DG-FEM

Forced Convective Heat Transfer of MWCNT/Water Nanofluid Under Constant Heat Flux: An Experimental Investigation

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