Combustion process of nanofluids consisting of oxygen molecules and aluminum nanoparticles in a copper nanochannel using molecular dynamics simulation

Chen, Heng; Bokov, Dmitry Olegovich; Chupradit, Supat; Hekmatifar, Maboud; Mahmoud, Mustafa Z.; Sabetvand, Roozbeh; Duan, Jinying; Toghraie, Davood

doi:10.1016/j.csite.2021.101628

Cited by 33 publications

(5 citation statements)

References 27 publications

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“…Typical coefficients (a i ) are given in [4,5], and here they are presented in Table 1. Note that N = 10 rc/m [3], where N is the concentration of the electrolyte, mol/dm 3 of the solution; rsolution density, g/dm 3 ; c-solution concentration, wt.%; m-the molar mass of the substance, g/mol. Data on the density of solutions of various water-salt systems and molar masses are given in [6], and a icoefficients characteristic for each ion are presented in [4], and here in Table 2.…”

Section: Thermal Conductivitymentioning

confidence: 99%

“…The development of power engineering and other industries is closely related to the use of a wide range of coolants and working fluids. Among the liquid heat carriers used in various sectors of the economy, aqueous and non-aqueous solutions of inorganic substances play an important role [1][2][3][4][5][6]. The use of suitable nano additives to improve and increase the cooling property in industrial devices can be effective in reducing the hot spot temperature, which is one of the design limitations [7,8].…”

Section: Introductionmentioning

confidence: 99%

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Thermal Conductivity and Dynamic Viscosity of Highly Mineralized Water

Mohamad¹,

Jawad²,

Guerrero³

et al. 2022

Fluid Dynamics &Amp; Materials Processing

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Further development in the field of geothermal energy require reliable reference data on the thermophysical properties of geothermal waters, namely, on the thermal conductivity and viscosity of aqueous salt solutions at temperatures of 293-473 K, pressures Ps = 100 MPa, and concentrations of 0-25 wt.%. Given the lack of data and models, especially for the dynamic viscosity of aqueous salt solutions at a pressure of above 40 MPa, generalized formulas are presented here, by which these gaps can be filled. The article presents a generalized formula for obtaining reliable data on the thermal conductivity of water aqueous solutions of salts for Ps = 100 MPa, temperatures of 293-473 K and concentrations of 0%-25% (wt.%), as well as generalized formulas for the dynamic viscosity of water up to pressures of 500 MPa and aqueous solutions of salts for Ps = 100 MPa, temperatures 333-473 K, and concentration 0%-25%. The obtained values agree with the experimental data within 1.6%.

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Section: Thermal Conductivitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal Conductivity and Dynamic Viscosity of Highly Mineralized Water

Mohamad¹,

Jawad²,

Guerrero³

et al. 2022

Fluid Dynamics &Amp; Materials Processing

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“…Heat transfer could be determined by calculation the Nu for various cases. The Nusselt number expressed in equation ( 9): 𝑁𝑢 = ℎ𝐷 𝑘 𝑛𝑓 (9) in which h refers to heat transfer coefficient and can be determined as:…”

Section: Definition Of Dimensionless Parametersmentioning

confidence: 99%

“…A nominate problems in the area of the heat exchangers and micro-annulus is to boost the heat transfer performance without scarifying the pressure drop disadvantage. So, nanofluids are an advantageous choice considering their exceptional feature [5][6][7] in comparison to a liquid with micro-size particles [8], which were applied in various industries and applications [9][10][11][12][13][14]. Abdulrazzaq et al [15] conducted an empirical research on a turbulent heat transfer by nanofluid flow interaction in a cylinder geometry with sharp changes in flow.…”

Section: Introductionmentioning

confidence: 99%

Investigating non-Newtonian nano-fluid flow based on first and second law of thermodynamics by micro-annulus

Mehran¹,

Ghandilou

Yapanto

2022

Scientia Iranica

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In this study first and second law analyses of non-Newtonian nano-fluid flow through an annular cylinder filled with non-Newtonian water-CMC/TiO2 nano-fluid by considering temperature jump and slip velocity were investigated numerically. The single-phase was developed for heat transfer and nano-fluid flow. The impact of Reynolds number, nanoparticles volume fraction, temperature jump, and slip velocity on Nusselt numbers and entropy generation were evaluated and the findings were discussed considering non-Newtonian performance of working fluid. The findings indicate that note the higher shear rate in the presence of the interior wall the Nusselt number for the interior wall was higher than outside walls. According to shear-thinning fluid behavior, when the flow has a higher shear rate, apparent viscosity would be small. So, it can be concluded that the apparent viscosity of flow close to the inner wall was low which decreased the impact of viscosity force and improved heat transfer due to convection-advection phenomena. In addition, the findings showed that the entropy generation ratio is very high at the entrance and it decreased along the annular tube. Furthermore, the apparent viscosity of fluid increases by nano-particle volume fraction.

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“…Among the wide applications of nanotubes, their use as fluid carriers is of great importance; because it includes features such as fluid storage and transfer. Therefore, the vibrational behavior of carbon nanotubes containing fluid has been studied in various studies and many aspects of it still need further research [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

On the Dynamics of a Viscoelastic Fluid-Conveying Nanotube

Ibrahim¹,

Widjaja²,

Alattabi³

et al. 2022

Fluid Dynamics &Amp; Materials Processing

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The objective of the presented study is to perform a vibration analysis and investigate the stability of a viscoelastic-fluid conveying pipe with an intermediate support. The mathematical model is elaborated in the framework of the Euler-Bernoulli beam theory in combination with the Kelvin-Voight viscoelastic approach. The resulting differential equation of motion and the related boundary conditions and compatibility conditions in the mid-span support are solved analytically using a power series method. The results show that an intermediate support located at ξ s = 0.1 and ξ s = 0.5 increases the critical velocity up to 35% and 50.15%, respectively. Also, the non-dimensional critical velocity for an intermediate support at ξ s = 0.1 is 4.83.

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Combustion process of nanofluids consisting of oxygen molecules and aluminum nanoparticles in a copper nanochannel using molecular dynamics simulation

Cited by 33 publications

References 27 publications

Thermal Conductivity and Dynamic Viscosity of Highly Mineralized Water

Thermal Conductivity and Dynamic Viscosity of Highly Mineralized Water

Investigating non-Newtonian nano-fluid flow based on first and second law of thermodynamics by micro-annulus

On the Dynamics of a Viscoelastic Fluid-Conveying Nanotube

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