Experimental study on convective heat transfer and entropy generation of carbon black nanofluid turbulent flow in a helical coiled heat exchanger

Shiravi, Amir Hossein; Shafiee, Mojtaba; Firoozzadeh, Mohammad; Bostani, Hadis; Bozorgmehrian, Maryam

doi:10.1007/s10973-020-09729-1

Cited by 34 publications

(8 citation statements)

References 44 publications

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“…Further the simulation results compared with the reported experimental data and theoretical analysis [36] are shown in Figure 5 and Table 4. As shown in figure and table, the maximum productivity errors between this simulation and for the reported experiment is 30% and for the theoretical method is 13%.…”

Section: Solution Procedures and Mesh Independencymentioning

confidence: 95%

Effect of Steps Height and Glass Cover Angle on Heat Transfer Performance for Solar Distillation: Numerical Study

2022

IJE

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Section: Solution Procedures and Mesh Independencymentioning

confidence: 95%

Effect of Steps Height and Glass Cover Angle on Heat Transfer Performance for Solar Distillation: Numerical Study

2022

IJE

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“…After concentration of around 1e-4 M, the LVP does not show the decreasing stage, and reaches terminal velocity immediately after the acceleration stage. For more information about interfacial properties of C 10 DMPO [49][50][51][52].…”

Section: Lvps Of Rising Bubble In Single Substance Solutionsmentioning

confidence: 99%

Hydrodynamics of Rising Air Bubbles in Mixture of Proteins with Non-Ionic Surfactants to Declare their Interaction at the Air-Water Interface

Lotfi¹,

Bahmani²,

Bastani³

2022

Scientia Iranica

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Evaluation of behavior of adsorbed layers of protein-surfactant mixture at the air-water interfaces have recently received great attention due to their wide applications in food and pharmaceutical industries. In this research, qualitative study of surface activity of two kinds of proteins, Beta-Lactoglobulin (BLG) and Beta-Casein (BCS), non-ionic surfactant of C 10 DMPO, and the mixtures of them in different concentrations at the air-water interface is investigated using rising bubble method. The similarity between measured local velocity profiles can be due to the fact that all mentioned materials are surface-active one and could create the Marangoni effect and develop a dynamic adsorption layer. As there is no significant interaction between the protein and surfactant molecules, stable complex structures cannot be formed in the protein-C10DMPO mixture. The mixture velocity profile is more similar to that of the surfactant which is a result of replacement of protein molecules or complexes with free surfactant at the bubble interface. It is found that the mixture of non-ionic surfactant with BCS has a bit synergetic effect while for its mixture with BLG, a negative synergy is observed which is resulted from the shape of protein.

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“…With the addition of nanoparticles, the friction factor was raised to 42% and the mean Nusselt number increased. Shiravi et al [6] reported an enhancement of 40.7% in heat transfer at a mass concentration of 0.21% at a constant Reynold number for carbon-based nanofluids. The friction factor was increased by increasing particle concentration and decreasing the Reynolds number.…”

Section: Introductionmentioning

confidence: 99%

Viscosity Analysis of Water-based Copper Oxide Nanofluids

Singh¹,

Kumar²,

Kumar³

et al. 2023

IJE

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Experimental study on convective heat transfer and entropy generation of carbon black nanofluid turbulent flow in a helical coiled heat exchanger

Cited by 34 publications

References 44 publications

Effect of Steps Height and Glass Cover Angle on Heat Transfer Performance for Solar Distillation: Numerical Study

Effect of Steps Height and Glass Cover Angle on Heat Transfer Performance for Solar Distillation: Numerical Study

Hydrodynamics of Rising Air Bubbles in Mixture of Proteins with Non-Ionic Surfactants to Declare their Interaction at the Air-Water Interface

Viscosity Analysis of Water-based Copper Oxide Nanofluids

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