Improvement of mechanical energy using thermal efficiency of hybrid nanofluid on solar aircraft wings: an application of renewable, sustainable energy

Obalalu, Adebowale Martins; Ahmad, Hijaz; Salawu, S.O.; Olayemi, Olalekan Adebayo; Odetunde, Christopher Bode; Ajala, Adebayo Olusegun; Abdulraheem, Abdulganiyu

doi:10.1080/17455030.2023.2184642

Cited by 26 publications

(4 citation statements)

References 53 publications

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Section: Introductionmentioning

confidence: 73%

“…It was noted that these parameters significantly impacted the enhancement of heat transport. The merits of nanofluid in powering ships and solar aircraft were reported by Obalalu et al 37,38 Earlier works on configurations having obstructions within them inspire the current analysis. The present study examines the effect of the Grashof number, Reynolds number, ellipse axis ratio, and orientation angle on the profiles of combined forced-free convection flow in a square domain with its top horizontal wall moving with a fixed velocity in the positive x-direction.…”

Section: Introductionmentioning

confidence: 74%

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Parametric studies of mixed convective fluid flow around cylinders of different cross‐sections

Olayemi

Obalalu²,

Ibitoye

et al. 2023

Heat Trans

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A numerical study of mixed convective heat transfer in a lid‐driven square enclosure containing a hot elliptic cylinder is conducted. The impacts of the Grashof number , Reynolds number , cylinder tilt angle , and aspect ratio have been examined for a fluid of of 0.71. The horizontal enclosure walls are insulated, while its vertical walls are restricted to a nonvarying temperature Tc, whereas a sinusoidal temperature of is imposed on the wall of the elliptical cylinder. The governing equations are solved using COMSOL Multiphysics 5.6 software. The fluid dynamic and the heat transport profiles between the enclosure and the elliptical cylinder walls are represented by the stream function, isothermal contours, and average Nusselt number. Results established that for all the considered aspect ratios, the thermal heating range of is predominantly a conduction mechanism. The critical position of the ellipse where the inclination effect becomes insignificant is determined by the Grashof number and aspect ratio when the Re = 100. The strength of vortices and cell numbers are significantly influenced by the aspect ratio, particularly when the . When , the average heat transfer from the cylinder remains the same regardless of the cylinder's orientation. The impact of cylinder orientation on heat transfer from the cylinder wall is minimal for . For AR values of , increasing the inclination angle does not result in improved heat transfer. The influence of the increasing inclination angle on the right wall diminishes as the angle increases, except when the Grashof number is greater than 105, where the rate of heat transfer is enhanced for inclination angles beyond 45°.

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Section: Introductionmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 74%

Parametric studies of mixed convective fluid flow around cylinders of different cross‐sections

Olayemi

Obalalu²,

Ibitoye

et al. 2023

Heat Trans

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show abstract

“…Unlike fossil fuels, these resources are abundant and replenish naturally, minimizing carbon emissions and reducing greenhouse gases and air pollution. Deploying renewable energy technologies mitigates climate change and enhances energy security by diversifying energy supply sources [150][151][152][153] . Enhancing energy efficiency across production and distribution systems is crucial in sustainability practices.…”

Section: Sustainable Marketing Practices Of Energy Companiesmentioning

confidence: 99%

Sustainability marketing strategies for the energy sector: Trends, challenges, and future directions

Durmus Senyapar

2024

Environ. Soc. Psychol.

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This study delves into the complex dynamics of sustainable marketing within the energy sector, aiming to unravel the intersection of sustainability principles and marketing strategies that promote environmental stewardship, economic viability, and social equity. Through exploratory qualitative research, the study uncovers critical trends in sustainable marketing, addressing the challenge of aligning strategies with environmental, economic, and social goals. A strategic shift is observed in integrating renewable energy sources, emphasizing environmental benefits and global alignment with sustainability goals. Transparent communication and ethical practices are pivotal, fostering consumer trust and authentic storytelling and establishing a foundation for a trustworthy energy sector. The emphasis on energy efficiency solutions and digital marketing platforms contribute to an informed and empowered consumer base. Customizable energy solutions, incentive programs, collaborative campaigns, and sustainable branding enhance market appeal, reinforcing economic benefits and positioning companies as leaders in transitioning to a sustainable energy future. The critical findings highlight integrating renewable energy sources, a shift towards transparency and ethical marketing practices, promoting energy efficiency solutions, leveraging digital platforms, offering customizable solutions, and engaging in collaborative campaigns with sustainable branding. Synthesizing these findings, the study provides a holistic perspective on strategies contributing to a resilient and eco-conscious future in the energy sector. Energy companies can leverage these insights to refine marketing strategies, align with global sustainability goals, foster consumer trust, and position themselves as leaders in transitioning to a sustainable energy future.

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“…These references encompass a diverse range of studies and findings, each contributing to our understanding of how nanofluids can be utilized to enhance heat transfer and other thermal properties in various systems. A thorough investigation, as conducted by [28], delved into the intricate flow dynamics of NN-Casson fluids within a porous medium. This investigation also took into account slip and temperature jump boundaries, using natural convection as a means to gain deeper insights into the behavior of these particular fluids.…”

Section: Introductionmentioning

confidence: 99%

Important of Slip Effects in Non-Newtonian Nanofluid Flow with Heat Generation for Enhanced Heat Transfer Devices

Oladapo,

Akindele,

Obalalu

et al. 2024

DDF

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In various fields such as engineering, nanotechnology, and biomedical sciences, the study of non-Newtonian nanofluid flow with heat generation is becoming increasingly important. However, it is challenging to accurately model such flows due to their complex behavior and slip effects at the fluid-solid interface. This research investigates the impact of first and second-order slip conditions on the flow and heat transfer properties of a non-Newtonian nanofluid using a power law model to describe the fluid's non-Newtonian behavior and numerical methods to solve the resulting equations. To determine the influence of various parameters such as slip parameters, Brinkman number, power law index, and Eckert number on the velocity, temperature, and concentration profiles, which this study examines. The study shows that slip parameters significantly determine the flow and heat transfer properties of non-Newtonian nanofluids, the study also reveals that slip parameters are a crucial factor in understanding the flow and heat transfer characteristics of nanofluids, with the second-order slip condition having a greater impact on velocity and temperature profiles than the first-order slip condition. These findings are valuable for developing and optimizing heat transfer devices that involve non-Newtonian nanofluids with heat generation, which is essential for technological advancements in today's industry.

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Improvement of mechanical energy using thermal efficiency of hybrid nanofluid on solar aircraft wings: an application of renewable, sustainable energy

Cited by 26 publications

References 53 publications

Parametric studies of mixed convective fluid flow around cylinders of different cross‐sections

Parametric studies of mixed convective fluid flow around cylinders of different cross‐sections

Sustainability marketing strategies for the energy sector: Trends, challenges, and future directions

Important of Slip Effects in Non-Newtonian Nanofluid Flow with Heat Generation for Enhanced Heat Transfer Devices

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