Solar power and application methods

Güney, Mükrimin Şevket

doi:10.1016/j.rser.2015.12.055

Cited by 153 publications

(51 citation statements)

References 14 publications

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“…The proliferation and widespread use of solar-energy generation is increasingly justified by humanity's increasing energy demands, and it can make a significant contribution to the promotion of sustainable energy management, in addition to offering many other advantages [1][2][3]. There are many solutions for solar-energy utilization, ranging from passive heat production to complex, concentrated energy generation [4].…”

Section: Features and Markets Of Solar Modulesmentioning

confidence: 99%

Change of Real and Simulated Energy Production of Certain Photovoltaic Technologies in Relation to Orientation, Tilt Angle and Dual-Axis Sun-Tracking. A Case Study in Hungary

Zsiborács¹,

Bai²,

Popp³

et al. 2018

Sustainability

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The aim of the study is to compare the tilt angle-orientation and dual-axis tracking characteristics of mono-(m-Si), polycrystalline (p-Si), and amorphous silicon (a-Si) modules in the summer of 2017, under real meteorological conditions with simulated data. The most important new element of our study is that, besides a comparison of the three most significant photovoltaic types, the technologies are differentiated by examining specific energy generation using dual-axis tracking and four different orientations at 5-degree intervals compared to simulated values, near to the summer solstice. For these types of measurements, as far as we are aware, there is no previous reliable, well-supported, comparative data. The simulated data show less accurate results, proving the importance of real data. Based on simulated data, the tilt angle and orientation showed about 10% favorable values compared to reality. Knowing our results can make it easier to plan investment, and estimate the investment and operational costs and their return on crystalline and amorphous silicon solar modules, for both sun-tracking and fixed systems with various orientations and tilt angles.

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Section: Features and Markets Of Solar Modulesmentioning

confidence: 99%

Change of Real and Simulated Energy Production of Certain Photovoltaic Technologies in Relation to Orientation, Tilt Angle and Dual-Axis Sun-Tracking. A Case Study in Hungary

Zsiborács¹,

Bai²,

Popp³

et al. 2018

Sustainability

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“…The rapid development of renewable energy related technologies, e.g. wind power [42] and solar power [43], made it possible for the development of distributed power generation and microgrids [44][45][46]. People's reliance on fossil energy and long-distant transmission was decreasing.…”

Section: Evolution Of Energy Systemsmentioning

confidence: 99%

Energy Internet: The business perspective

2016

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“…Solar energy is a clean and environmental friendly renewable energy source with plentiful and widely distributed. So the development and utilization of solar energy for thermal power generation is an important way to solve the above problems . The solar‐energy thermal‐power generation usually has 4 primary technologies, namely, the dish/Stirling, tower power, parabolic trough, and linear Fresnel .…”

Section: Introductionmentioning

confidence: 99%

“…So the development and utilization of solar energy for thermal power generation is an important way to solve the above problems . The solar‐energy thermal‐power generation usually has 4 primary technologies, namely, the dish/Stirling, tower power, parabolic trough, and linear Fresnel . Among them, the solar dish/Stirling system has the advantages of a high solar‐to‐electricity conversion efficiency (highest record is 31.25%), flexible arrangement, and high modularity, thus considered a high‐grade solar thermal‐power utilization system with wide application prospects in the future.…”

Section: Introductionmentioning

confidence: 99%

Mirror rearrangement optimization for uniform flux distribution on the cavity receiver of solar parabolic dish concentrator system

2018

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Summary The nonuniform and high‐gradient solar radiation flux on the absorber surface of solar dish concentrator/cavity receiver (SDCR) system will affect its operational reliability and service lifetime. Therefore, homogenization of the flux distribution is critical and important. In this paper, 2 mirror rearrangement strategies and its optimization method by combining a novel ray tracing method and the genetic algorithm are proposed to optimize the parabolic dish concentrator (PDC) so as to realize the uniform flux distribution on the absorber surface inside the cavity receiver of SDCR system. The mirror rearrangement strategy includes a mirror rotation strategy and mirror translation strategy, which rotate and translate (along the focal axis) each mirror unit of the PDC to achieve multipoint aiming, respectively. Firstly, a correlation model between the focus spot radius and mirror rearrangement parameters is derived as constraint model to optimize the PDC. Secondly, a novel method named motion accumulation ray‐tracing method is proposed to reduce the optical simulation time. The optical model by motion accumulation ray‐tracing method and optimization model of SDCR system are established in detailed, and then, an optimization program by combining a ray‐tracing code and genetic algorithm code in C++ is developed and verified. Finally, 3 typical cavity receivers, namely, cylindrical, conical, and spherical, are taken as examples to fully verify the effectiveness of these proposed methods. The results show that the optimized PDC by mirror rearrangement strategies can not only greatly improve the flux uniformity (ie, reduce the nonuniformity factor) and reduce the peak local concentration ratio of the absorber surface but also obtain excellent optical efficiency and direct useful energy ratio. A better optimization results when the PDC is optimized by mirror rotation strategy at aperture radius of 7.0 m, focal length of 6.00 m, and ring number of 6; the nonuniform factor of the cylindrical, conical, and spherical cavity receivers is greatly reduced from 0.63, 0.67, and 0.45 to 0.18, 0.17, and 0.26, respectively; the peak local concentration ratio is reduced from 1140.00, 1399.00, and 633.30 to 709.10, 794.00, and 505.90, respectively; and the optical efficiency of SDCR system is as high as 92.01%, 92.13%, and 92.71%, respectively. These results also show that the dish concentrator with same focal length can match different cavity receivers by mirror rearrangement and it can obtain excellent flux uniformity.

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Solar power and application methods

Cited by 153 publications

References 14 publications

Change of Real and Simulated Energy Production of Certain Photovoltaic Technologies in Relation to Orientation, Tilt Angle and Dual-Axis Sun-Tracking. A Case Study in Hungary

Change of Real and Simulated Energy Production of Certain Photovoltaic Technologies in Relation to Orientation, Tilt Angle and Dual-Axis Sun-Tracking. A Case Study in Hungary

Energy Internet: The business perspective

Mirror rearrangement optimization for uniform flux distribution on the cavity receiver of solar parabolic dish concentrator system

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