Optimisation of an asymmetric static concentrator: the PEC‐44D

Zanesco, Izete; Lorenzo, E.

doi:10.1002/pip.431

Cited by 23 publications

(8 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Systems of a similar premise to this, with photovoltaic absorbers, have been discussed by a number researchers including: Brogren (2004), Brogren and Karlsson (2002), Gajbert et al (2007), Mallick et al (2004), Zacharopoulos et al (2000), Zanesco and Lorenzo (2002). However, in a recent study Piratheepan and Anderson (2013) compared the illumination profiles of a façade integrated collectors with parabolic and flat reflectors.…”

Section: Introductionmentioning

confidence: 92%

Natural convection heat transfer in façade integrated solar concentrators

Piratheepan

Anderson

2015

Solar Energy

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 92%

Natural convection heat transfer in façade integrated solar concentrators

Piratheepan

Anderson

2015

Solar Energy

View full text Add to dashboard Cite

“…The CPC is a nonimaging ideal collector as it attains the highest possible concentration of radiant energy permitted by the second law of thermodynamics [18]. The main advantages of CPCs over other solar collectors include high optical efficiency [18], minimum errors of alignment [19], elimination of the diurnal tracking requirement at intermediate concentrations (up to 10×) [18], and being able to collect both diffuse and direct radiation [18][19][20][21]. Generally, CPCs are categorised as two-dimensional (2D) [18,19,21] or three-dimensional (3D) collectors [18,19,22].…”

Section: Introductionmentioning

confidence: 99%

Experimental Characterisation of Photovoltaic Modules with Cells Connected in Different Configurations to Address Nonuniform Illumination Effect

Paul

2019

Journal of Renewable Energy

View full text Add to dashboard Cite

Most concentrating systems that are being used for photovoltaic (PV) applications do not illuminate the PV module uniformly which results in power output reduction. This study investigated the electrical performance of three PV modules with cells connected in different configurations to address nonuniform illumination effect. PV module 1 is the standard module consisting of 11 solar cells connected in series whereas PV module 2 is a proposed design with 11 cells in three groups and each group consists of different cells in series connections. PV module 3 is also a new design with 11 cells in two groups and each group consists of different cells connected in series. The new PV modules were designed in such a way that the effect of nonuniform illumination should affect a group of cells but not the entire PV module, leading to high power output. The PV modules were tested under three different intensities: uniform, low nonuniform, and high nonuniform illumination. When the PV modules were tested at uniform illumination, the total maximum power output of PV module 1 was higher than that of PV module 2 and PV module 3 by about 7%. However, when the PV modules were tested at low nonuniform illumination, the total maximum power output of PV module 2 was higher than that of PV module 1 and PV module 3 by about 4% and 7%, respectively. This difference increased to about 12% for PV module 3 and 17% for PV module 1 when the modules were tested at high nonuniform illumination. Therefore, the best PV module design in addressing nonuniform illumination effect in solar collectors is PV module 2. In practical situation this implies that manufacturers of PV modules should consider designing modules with groups of cells in series connection instead of all cells being connected in series.

show abstract

“…A cost-effective and improved CPV system is obtained by producing the same amount of power by using less number of cells compared to conventional number of cells. It is reported that a low concentration photovoltaic system (LCPV) can reduce the cost up to 40% compared to a simple flat PV system [2], [3]. Due to their potentials of non-tracking, high liability and low cost, a considerable amount of research has been done for the development of various types LCPV applications [4].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Photovoltaic String with Compound Parabolic Concentrator

Ali¹,

Gandhidasan²

2015

JOCET

View full text Add to dashboard Cite

Abstract-Photovoltaic (PV) system is used to directly converting the solar energy into the electrical energy. Compound Parabolic Concentrator (CPC) is a non-imaging concentrator which is considered in this study for reducing the cost of electrical energy. Two configurations are numerically studied namely one with simple typical flat PV string and the other PV string with CPC. The truncated CPC with concentration ratio of 2.3 and an acceptance angle of 41.75° is considered in the analysis of PV string with CPC (PV-CPC). Transient System Simulation Software (TRNSYS) is used for the evaluation of PV cell performance with and without CPC. The mathematical model for PV and PV-CPC is developed for the performance estimation of thermal and electrical characteristic of the system. Engineering Equation Solver (EES) code is written to solve the mathematical model and is linked with TRNSYS for simulation. The simulation is carried out for the average day of the months of June and December for Riyadh city. Results indicated that the use of the CPC increases the absorbed energy and electrical power output of PV system. The electrical power of PV string increases almost 35% when CPC is used with PV compared to simple typical flat PV string.Index Term-Compound parabolic concentrator, TRNSYS, photovoltaic string, performance analysis. I. INTRODUCTIONSolar energy is considered as renewable and environment friendly energy source for meeting the world energy demands. Solar energy utilization can be classified into two categories: one is thermal system that converts solar energy into thermal energy, and the other is photovoltaic (PV) system that converts solar energy directly into electrical energy [1].Since the PV technology improves and maximizes the photoelectrical conversion rates, it has been extensively employed in the recent years. Due to the high initial capital cost of PV systems, their wide-ranging applications are restricted. The cost can be reduced either by increasing the efficiency of the solar cell or using concentration photovoltaic (CPV). A cost-effective and improved CPV system is obtained by producing the same amount of power by using less number of cells compared to conventional number of cells. It is reported that a low concentration photovoltaic system (LCPV) can reduce the cost up to 40% compared to a simple flat PV system [2], [3]. Due to their potentials of non-tracking, high liability and low cost, a considerable amount of research has been done for the development of various types LCPV applications [4]. Many efforts have been made in the recent years by using CPC to reduce the use of expensive solar cells and hence lower the cost of PV power output [5]-[8]. Concentration ratios in the range of 2-7 can be obtained with simple CPC which needs only the seasonal tilt adjustments rather than tracking the sun. To determine the yearly optimal tilt-angle of aperture to maximize the annual collectible radiation on the absorber of CPC and finding the optimal acceptance half-angle, a mathematical model was presented...

show abstract

Optimisation of an asymmetric static concentrator: the PEC‐44D

Cited by 23 publications

References 17 publications

Natural convection heat transfer in façade integrated solar concentrators

Natural convection heat transfer in façade integrated solar concentrators

Experimental Characterisation of Photovoltaic Modules with Cells Connected in Different Configurations to Address Nonuniform Illumination Effect

Performance Evaluation of Photovoltaic String with Compound Parabolic Concentrator

Contact Info

Product

Resources

About