Hydrothermal analysis of transient natural convection in a finned cavity filled with sulfuric acid-water (25–75%) for applications in high-performance lead-acid batteries – Numerical study

Salari, Mostafa; Malekshah, Emad Hasani; Malekshah, Masoud Hasani

doi:10.1016/j.tsep.2017.10.013

Cited by 26 publications

(5 citation statements)

References 33 publications

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“…2.2.1 Fluid media 2.2.1.1 Navier-Stokes formulation (Salari et al, 2017c(Salari et al, , 2018cMalekshah et al, 2017Malekshah et al, , 2018. The continuity, momentum and energy conservation equations for incompressible fluids in steady state condition are as follows:…”

Section: Governing Equationsmentioning

confidence: 99%

“…Natural convection fluid flow and heat transfer occur in enclosures with different geometries in real applications leading the researcher to study the effects of different geometries on natural convection phenomenon (Salari et al, 2017c(Salari et al, , 2018(Salari et al, , 2018a(Salari et al, , 2018bRahimi et al, 2018aRahimi et al, , 2018bRahimi et al, , 2018c. Alshuraiaan and Khanafer (2016) examined the effects of the heated thin porous fin position on the laminar natural convection in a square cavity.…”

Section: Introductionmentioning

confidence: 99%

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A comprehensive review on natural convection flow and heat transfer

Rahimi

Saee

Kasaeipoor

et al. 2019

HFF

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Purpose The purpose of this paper is to carry out a comprehensive review of some latest studies devoted to natural convection phenomenon in the enclosures because of its significant industrial applications. Design/methodology/approach Geometries of the enclosures have considerable influences on the heat transfer which will be important in energy consumption. The most useful geometries in engineering fields are treated in this literature, and their effects on the fluid flow and heat transfer are presented. Findings A great variety of geometries included with different physical and thermal boundary conditions, heat sources and fluid/nanofluid media are analyzed. Moreover, the results of different types of methods including experimental, analytical and numerical are obtained. Different natures of natural convection phenomenon including laminar, steady-state and transient, turbulent are covered. Overall, the present review enhances the insight of researchers into choosing the best geometry for thermal process. Originality/value A comprehensive review on the most practical geometries in the industrial application is performed.

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Section: Governing Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A comprehensive review on natural convection flow and heat transfer

Rahimi

Saee

Kasaeipoor

et al. 2019

HFF

View full text Add to dashboard Cite

show abstract

“…It is note that it is necessary to satisfy the steady energy conservation equation by heat function (Malekshah et al , 2018; Salari et al , 2018a). To reach this purpose, the following equations are defined (Hasani Malekshah et al , 2018; Salari et al , 2017): …”

Section: Problem Declaration and Simulation Formulationmentioning

confidence: 99%

Lattice Boltzmann simulation of free convection’s hydrothermal aspects in a finned/multi-pipe cavity filled with CuO-water nanofluid

Rahimi

Azarikhah

Kasaeipoor

et al. 2019

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Purpose This paper aims to investigate the natural convection fluid flow and heat transfer in a finned/multi-pipe cavity. Design/methodology/approach The cavity is filled with the CuO-water nanofluid. The Koo–Kleinstreuer–Li model is used to estimate the dynamic viscosity and consider Brownian motion. On the other hand, the effect of the shapes of nanoparticles on the thermal conductivity and related heat transfer rate is presented. Findings In the present investigation, the governing parameters are Rayleigh number, CuO nanoparticle concentration in pure water and the thermal arrangements of internal active fins and solid bodies. Impacts of these parameters on the nanofluid flow, heat transfer rate, total/local entropy generation and heatlines are presented. It is concluded that adding nanoparticles to the pure fluid has a significant positive influence on the heat transfer performance. In addition, the average Nusselt number and total entropy generation have direct a relationship with the Rayleigh number. The thermal arrangement of the internal bodies and fins is a good controlling tool to determine the desired magnitude of heat transfer rate. Originality/value The originality of this paper is to use the lattice Boltzmann method in simulating the nanofluid flow and heat transfer within a cavity included with internal active bodies and fins.

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“…It is note that it is necessary to satisfy the steady energy conservation equation by heat function (Salari et al , 2018b; Malekshah et al , 2018). In order to reach this purpose, the following equations are defined (Hasani Malekshah et al , 2017; Salari et al , 2017): …”

Section: Problem Declaration and Simulation Formulationmentioning

confidence: 99%

Free convection analysis in a Γ-shaped heat exchanger using lattice Boltzmann method employing second law analysis and heatline visualization

Khakrah

Mohammaei

Hooshmand

et al. 2019

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Purpose The nanofluid flow and heat transfer within a heat exchanger, with different thermal arrangements of internal active bodies, are investigated. Design/methodology/approach For the numerical simulations, the lattice Boltzmann method is utilized. The KKL model is used to predict the dynamic viscosity of CuO-water nanofluid. Furthermore, the Brownian method is taken account using this model. The influence of shapes of nanoparticles on the heat transfer performance is considered. Findings The results show that the platelet nanoparticles render higher average Nusselt number showing better heat transfer performance. In order to perform comprehensive analysis, the heatline visualization, local and total entropy generation, local and average Nusselt variation are employed. Originality/value The originality of this work is carrying out a comprehensive investigation of nanofluid flow and heat transfer during natural convection using lattice Boltzmann method and employing second law analysis and heatline visualization.

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Hydrothermal analysis of transient natural convection in a finned cavity filled with sulfuric acid-water (25–75%) for applications in high-performance lead-acid batteries – Numerical study

Cited by 26 publications

References 33 publications

A comprehensive review on natural convection flow and heat transfer

A comprehensive review on natural convection flow and heat transfer

Lattice Boltzmann simulation of free convection’s hydrothermal aspects in a finned/multi-pipe cavity filled with CuO-water nanofluid

Free convection analysis in a Γ-shaped heat exchanger using lattice Boltzmann method employing second law analysis and heatline visualization

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