Performance analysis of two 3.5 kWp CPV systems under real operating conditions

Renzi, Massimiliano; Egidi, Lorenzo; Comodi, Gabriele

doi:10.1016/j.apenergy.2015.08.096

Cited by 34 publications

(18 citation statements)

References 39 publications

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“…One of the most modern technologies is the concentrated solar module (also called the CPV), which can reach a level of effectiveness of up to 44.7% in laboratory conditions [25]. In this approach, the lens system is precisely aligned to the location of the sun, concentrating the sunlight on a few, multiple borderline solar cells of a few millimeters in diameter, so that the light reaches the special semiconductor material with a greater intensity [26][27][28]. Solar cells here are not the silicon wafers used in crystalline solution, but three-junction solar cells.…”

Section: Monocrystalline Solar Modulementioning

confidence: 99%

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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: Monocrystalline Solar Modulementioning

confidence: 99%

“…This results in higher efficiency, as each layer specifically utilizes different ranges of solar radiation. The efficiency of the CPV module we use is 27.2% [27,[29][30][31][32][33][34].…”

Section: Monocrystalline Solar Modulementioning

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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show abstract

“…For the second optical element, there are many different designs. The specular reflective SOE and total internal reflective SOE are common in the application [7,14,15]. In this paper, the hybrid SOE is designed for the Fresnel solar concentrator, which consisted of the reflective element and the solid lens element.…”

Section: Structurementioning

confidence: 99%

“…Currently, the common SOE has two types, reflective SOE and solid lens SOE, which rely on the specular reflection function and lens refraction and total internal reflection functions, respectively. Renzi et al [7] analyzed the performance of two 3.5 kWp CPV systems with geometrical concentration ratio of 476x and a reflective SOE. Lee and Lin [8] proposed a high-efficiency concentrated optical module with a parabolic second optical element.…”

Section: Introductionmentioning

confidence: 99%

Optical Simulation and Experimental Verification of a Fresnel Solar Concentrator with a New Hybrid Second Optical Element

Jin

2016

International Journal of Photoenergy

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Fresnel solar concentrator is one of the most common solar concentrators in solar applications. For high Fresnel concentrating PV or PV/T systems, the second optical element (SOE) is the key component for the high optical efficiency at a wider deflection angle, which is important for overcoming unavoidable errors from the tacking system, the Fresnel lens processing and installment technology, and so forth. In this paper, a new hybrid SOE was designed to match the Fresnel solar concentrator with the concentration ratio of 1090x. The ray-tracing technology was employed to indicate the optical properties. The simulation outcome showed that the Fresnel solar concentrator with the new hybrid SOE has a wider deflection angle scope with the high optical efficiency. Furthermore, the flux distribution with different deviation angles was also analyzed. In addition, the experiment of the Fresnel solar concentrator with the hybrid SOE under outdoor condition was carried out. The verifications from the electrical and thermal outputs were all made to analyze the optical efficiency comprehensively. The optical efficiency resulting from the experiment is found to be consistent with that from the simulation.

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“…Many types of research show the ability to use passive heat sink to keep panel efficiently (especially in 500suns) [12][13][14][15][16][17][18][19], the passive cooling fin structure can be shown in Figure 3 [19]. The nomenclature used (Figure 3) in the present work is: spacing (s), pitch (p), height (H), thickness (t), length (L), base width (W), and base thickness (tb) [19].…”

Section: Hcpv Typesmentioning

confidence: 99%

A Graduate Research of the Hybridization of High Concentrated Solar Panel and Anaerobic Production and Desalination

Xu¹,

Najafi²

2017 ASEE Annual Conference &Amp; Exposition Proceedings

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and then full professor in 2000 in the Department of Civil and Coastal Engineering. He has received numerous awards including a scholarship award (Fulbright), teaching awards, best paper awards, community service awards, and admission as an Eminent Engineer into Tau Beta Pi. His research on passive radon-resistant new residential building construction was adapted in HB1647 building code of Florida Legislature. Najafi is a member of numerous professional societies and has served on many committees and programs, and continuously attends and presents refereed papers at international, national, and local professional meetings and conferences. Lastly, Najafi attends courses, seminars and workshops, and has developed courses, videos and software packages during his career. His areas of specialization include transportation planning and management, legal aspects, construction contract administration, and public works. AbstractHigh concentration photovoltaics (HCPV) have become popular new types of solar technology. Compared to traditional photovoltaic panels, HCPV systems are potentially more efficient and cost-effective. However, HCPV's operation will cause high temperature on the panel surface, which causes a heat waste and deficiency of HCPV. Meanwhile, the anaerobic production and desalination plant need a highly demand of heat resource. The paper uses TRNSYS software to design a hybridization system with 500 suns concentration's HCPV, multi-stage flash desalination and anaerobic tank. The 0.01 m2 size HCPV system achieves a max electricity output at 300 W. Meanwhile the hybridization can operate desalination plant with 0.5 distillation ratio and anaerobic digestion at 3.2 m3 per hour. The study of a graduate research of the hybridization of high concentrated solar panel and anaerobic production and desalination would fit the call in the graduate division and it is consistent with the division objectives. Furthermore, the study is relevant to the ASEE division's mission and the scope is interdisciplinary including design, development and research. The research paper is relevant to Chi Xu's Ph.D. dissertation. Furthermore, the information is also used in a graduate level public works engineering and management class that is offered each fall semester. This makes it relevant to the theme of the ASEE Graduate Studies Division. IntroductionThe solar energy is an ideal energy can gain from the sun, as a type of renewable energy, solar energy has its advantage: widespread, low contamination and flexibility. High concentrated photovoltaics is new solar technology which can produce electricity cost-effectively. By using a reflection system to concentrate solar radiation can decrease cost and increase the efficiency. HCPV uses cooling system to cool down the high level heat received from solar concentration. However, cooling system can't use the potential energy from the heat, thus the heat is 'waste'. In order to reuse the energy and demonstrate the concept of renewable energy, the paper will design the hybridization the ...

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Performance analysis of two 3.5 kWp CPV systems under real operating conditions

Cited by 34 publications

References 39 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

Optical Simulation and Experimental Verification of a Fresnel Solar Concentrator with a New Hybrid Second Optical Element

A Graduate Research of the Hybridization of High Concentrated Solar Panel and Anaerobic Production and Desalination

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