Renewable Energy Resources

Twidell, John

doi:10.4324/9780429452161

Cited by 58 publications

(17 citation statements)

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“…The air movement is smooth above the boundary layer unless there are major storms or hurricanes. It is affecting the weather and planes, but not wind turbines directly if there is an unusual feature of jet streams at heights between about 10 km (about the height of Mount Everest) and 15 km (Twidell, 2021).…”

Section: Review Of Wind Energy Market Development In Usamentioning

confidence: 99%

Wind energy market in USA

Mayyas

Parvin

2023

EUR J SUSTAIN DEV RES

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This paper reviews the development and the perspectives of the wind energy market in USA, particularly to identify its potential growth as renewable energy source for electric generation, and to provide researchers, and various agencies a better understanding of wind energy market opportunities and barriers in USA within global context. The history of wind energy development, the cost analysis of wind energy compared to others renewable resources and fossil fuels, the renewable energy barriers, the prospect, and cost of the wind energy for USA market and legal acts are all reviewed. USA renewable wind and solar energy sources are used today to generate direct electric power for direct use by utility power companies, industrial, commercial, residential, and transportation sectors. In 2021, USA produced 92.9 quadrillion Btu from different types of energy resources including fossil fuels (35% petroleum, 34% natural gas, and 10% coal), 9% nuclear energy, and 12% renewable sources of energy. USA wind turbine capacity showed a growth rate of 13.4% with 117.7 Gigawatts in 2020, and 11.7% growth rate over 2009-2010. The European and Asia Pacific wind capacities were higher in 2020 than US with 216.6 and 341.9 Gigawatts, respectively. However, the European wind capacity growth rate decreased to 5.9% in 2020 as compared to their 10.3% growth during 2009-2019. The Asia Pacific’s wind capacity experienced firm growth at rate of 28.6% in 2020 and 23.0% during 2009-2019. Furthermore, the literature studies found that USA has become the world’s second largest wind power consumption (approximately 21%) country in 2020. The geographic distribution of wind resources are 20 times greater than the total global energy consumption. The average construction cost of windmill is being declined due to the tax incentives, utility demand, and better technology. This study suggests that the government regulatory policies and their commitment for harnessing wind energy should be stable and clear. Feed-in-tariff and long-term financial subsidies will also promote the diffusion of wind power development.

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Section: Review Of Wind Energy Market Development In Usamentioning

confidence: 99%

Wind energy market in USA

Mayyas

Parvin

2023

EUR J SUSTAIN DEV RES

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“…Equation ( 6) and (7) show that the output electric fields consist of two orthogonal circular polarizations (CPs). The second term on the right side of Eq.…”

Section: Design Principles and Physical Mechanismsmentioning

confidence: 99%

“…The second term on the right side of Eq. ( 6) and (7) implies that the transmitted or reflected light acquires an opposite-handedness and is simultaneously phase-shifted by arg ± 2θ . Thus, when the nanofins or nanopillars rotate by θ, a phase delay of ±2θ is realized considering the different spin states.…”

Section: Design Principles and Physical Mechanismsmentioning

confidence: 99%

Planar metasurface-based concentrators for solar energy harvest: from theory to engineering

et al. 2022

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Solar energy is an inexhaustible renewable energy resource, which is a potential solution to global warming and aids sustainable development. The use of solar-thermal collectors to harness solar energy facilitates low-cost heat storage and can improve the stability of power grids based on renewable energy. In solar-thermal collectors, traditional concentrators, such as parabolic troughs and dishes, are typically used but inevitably require high-precise supports and complex tracking sun systems, which increase the cost of solar-thermal power stations and hinder their further applications. In contrast, planar meta-lenses (so-called metasurface-based concentrators) consisting of two-dimensional nanostructured arrays are allowed to engineer the frequency dispersion and angular dispersion of the incident light through delicately arranging the aperture phase distribution, thereby correcting their inherent aberrations. Accordingly, the novel meta-lenses offer tremendous potentials to effectively capture broadband, wide-angle sunlight without the extra tracking system. This review summarizes the research motivation, design principles, building materials, and large-area fabrication methods of meta-lens for solar energy harvesting in terms of focusing efficiency, operation bandwidth, and angular dependence. In addition, the main challenges and future goals are examined.

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“…PV cells are undergoing great and rapid development in their design and capability in converting the solar intensity to useful power energy, so photovoltaics is one of the best ways to generate electrical energy by using solar cells. Therefore, PV modules are a good source for producing clean electricity where the solar radiation conversion efficiency ranges from 5% to 20% depending on the cell type [4]. The performance of the PV solar system is impacted by a wide variety of elements, including the surrounding temperature, wind speed, dust, and humidity levels [5].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study to Improve Solar Photovoltaic Performance by Utilizing PCM and Finned Wall

Hindi

Dakhil²,

Abbas³

2023

ARFMTS

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The temperature of a photovoltaic (PV) module has a significant impact on the module's ability to produce electricity. PV cells module’s passive cooling is critical for increasing electrical efficiency and power output. In this work, two scenarios of the passive cooling technique were presented for use in the cooling of the monocrystalline silicon PV modules. An aluminium finned wall and a combination of aluminium ﬁnned wall with phase change material were connected to the backside of the PV in order to bring the working temperature down and maintain it under the hot climate conditions in southern Iraq. Paraffin wax was employed as a PCM placed into an aluminium container with internal and exterior longitudinal aluminium fins in order to enhance the PCM's poor thermal conductivity, speed up the rates at which it melts and solidifies, and increase the amount of heat that is dissipated through free convection heat transfer. The PV modules were simultaneously tested and compared with a PV reference module under different solar radiation. According to the findings, the average temperature of the PV-Aluminium Finned wall-PCM module is reduced by 19.9 degrees Celsius when compared with the temperature of the reference PV module. This results in an increase in the average maximum output power of up to 23.1% compared to an identical reference PV module. Furthermore, the average electrical efficiency of the PV-Aluminium Finned wall-PCM is enhanced by 23.2% during the testing time from 9:00 AM to 12:00 PM in July 2022 at maximum solar radiation of 1130.7 W/m2 when compared with the PV reference module under the same conditions. This indicates a significant increase in both electrical and thermal performance. The testing took place in July 2022.

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Renewable Energy Resources

Cited by 58 publications

References 0 publications

Wind energy market in USA

Wind energy market in USA

Planar metasurface-based concentrators for solar energy harvest: from theory to engineering

Experimental Study to Improve Solar Photovoltaic Performance by Utilizing PCM and Finned Wall

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