Analytical model for the prediction of solar cell temperature for a high-concentration photovoltaic system

Al-Amri, Fahad; Abdel-Magid, T I M

doi:10.1016/j.csite.2021.100890

Cited by 17 publications

(14 citation statements)

References 17 publications

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“…a = half of the solar cell size b fl = half of the Fresnel lens size t = backplate thickness, m k = backplate thermal conductivity, W m −1 K −1 I = direct normal irradiance, W m -2 CR = concentration ratio η opt = optical efficiency of the Fresnel lens η STC = electrical efficiency at standard test conditions (STC) as provided by the manufacturer h = the combined radiative/conductive heat transfer coefficient of air around the aluminium backplate, and it may be obtained by the following equation [9]: The analytical solution of Equation ( 1) associated with its boundary conditions (Equations ( 2) and ( 3)) can be written as shown by Equation ( 5) [9].…”

Section: Mathematical Formulation and Analytical Solutionmentioning

confidence: 99%

“…CR = concentration ratio η opt = optical efficiency of the Fresnel lens η STC = electrical efficiency at standard test conditions (STC) as provided by the manufacturer h = the combined radiative/conductive heat transfer coefficient of air around the aluminium backplate, and it may be obtained by the following equation [9]:…”

Section: Mathematical Formulation and Analytical Solutionmentioning

confidence: 99%

“…h = the combined radiative/conductive heat transfer coefficient of air around the aluminium backplate, and it may be obtained by the following equation [9]:

h = (0.848 k_{a} {((), \frac{\cos (w) v Pr}{ν})}^{0.5} / {((), b n)}^{0.5} + 4 σ ε T_{\infty}^{3})

…”

Section: Mathematical Formulation and Analytical Solutionmentioning

confidence: 99%

“…They showed that passive cooling of a CPV system with a concentration ratio (CR) of 500x is insufficient to maintain the cells below 80 • C, especially in high ambient temperatures. Al-Amri and Abdelmagid developed an analytical solution for the HCPV cell temperature in terms of a variety of parameters [9]. Their study recommends using smaller cell sizes in harsh environments of ambient temperatures higher than 40 • C to help manage the reduction of the cell temperature below a critical value of 80 • C.…”

Section: Introductionmentioning

confidence: 99%

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Optimum heat spreader size for producing maximum net power from high‐concentration photovoltaic systems

Al-Amri

2021

IET Renewable Power Gen

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The present study introduces an analytical approach for predicting net power for highconcentrating photovoltaic systems (HCPV). Wind speed, surface radiation, and size of the backplate, which acts as a heat spreader, were found to be of high impact in increasing solar cell efficiency and maximum produced power. The efficiency increased by 5% as the wind shifted from light air (0.5 m/s) to fresh breeze (10 m/s). Also, it increased by 1.64% as the aluminium backplate shifted from a shiny (ɛ = 0) to a dark (ɛ = 1) surface. Furthermore, increasing heat-spreader length or wind velocity caused a logarithmic increase in solar cell efficiency. On the other hand, both parameters caused an exponential increase in consumed power due to the operation of a tracking system. Thus, optimal values of heat-spreader length at which maximum net power is produced exist. A case study based on the annual average values of the hourly-basis meteorological data for the period 2015 to 2018 for two cities in Saudi Arabia was conducted. It was found that the size of the heat spreader could be reduced by 36% for concentration ratio up to 2000 while concurrently increasing the net power by 2.6% and 6% for the systems built in Riyadh and Dammam, respectively.

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Section: Mathematical Formulation and Analytical Solutionmentioning

confidence: 99%

Section: Mathematical Formulation and Analytical Solutionmentioning

confidence: 99%

“…h = the combined radiative/conductive heat transfer coefficient of air around the aluminium backplate, and it may be obtained by the following equation [9]:

h = (0.848 k_{a} {((), \frac{\cos (w) v Pr}{ν})}^{0.5} / {((), b n)}^{0.5} + 4 σ ε T_{\infty}^{3})

…”

Section: Mathematical Formulation and Analytical Solutionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimum heat spreader size for producing maximum net power from high‐concentration photovoltaic systems

Al-Amri

2021

IET Renewable Power Gen

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“…Further studies were more focused on the analysis of other passive cooling techniques and their impacts on the thermal and electrical efficiencies of the HCPV systems. In effect, Fahad et al 20 developed an analytical model to estimate the HCPV temperature for high CR values. To prevent overheating, smaller cell sizes were implemented in severe scenarios with ambient temperatures above 40 C. It has been concluded that 3 Â 3 mm 2 solar cell size could be suitable for all conditions.…”

mentioning

confidence: 99%

Performance analysis of a single cell‐ultra‐high concentration photovoltaic thermal module based on pin‐fins cooling microchannel

AlFalah

Maatallah

Al-Amri

2021

Intl J of Energy Research

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The present work is carrying out the performance of an actively cooled Fresnel-based single-cell ultra-high concentration photovoltaic/thermal (UHCPV/T) system under concentration ratios (CR)s ranged between 500Â and 2500Â. Four cooling finned heat sink designs have been studied, that is, the in-line cylindrical pin fins (ICY), staggered cylindrical pin fins (SCY), inline conical pin fins (ICO), and staggered conical pin fins (SCO). The analysis was performed to study and optimize the maximum operating MJSC temperature, coolant flow outlet temperature, pressure drop across, and the thermal, electrical, and overall efficiency enhancement of the whole Fresnel-based UHCVP/T system. The numerical model has been first validated and then used to simulate the impact of the concentration ratio and Reynolds number on the limitations and records of each cooling finned design of the UHCPV/T. It was found that even though the aluminum-based-ICO pin fins heat sink can achieve the optimum overall efficiency of 80.20% under 2000Â and Re of 428; yet the aluminum-based ICY is the most appropriate pin-fins heat sink design for desalination purposes since it corresponds to the highest water outlet temperature of 66.16 C with a second-ranked overall efficiency of 72.5% under the same operating conditions.cooling microchannel, overall efficiency, pin-fins heat sinks, ultra-high concentration ratio | INTRODUCTIONConcentrating the incoming light on a small surface of high-efficiency multijunction solar cell (MJSC) can be seen as a bright energy source to generate more costeffective electricity. Recently, most of the efficiency records have been reached with the concentration photovoltaics (CPV) technology. 1 It is an advanced technology for increasing PV systems' utilization and deployment. To increase the efficiency of the MJSC with the growing intensity of the system's power at ultra-high

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Influence of ZnSe Surface Coatings for Enhancing the Performance of Multicrystalline Silicon Solar Cells

Chinnasamy

Rathanasamy²,

Sivaraj³

et al. 2022

J. Electron. Mater.

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Analytical model for the prediction of solar cell temperature for a high-concentration photovoltaic system

Cited by 17 publications

References 17 publications

Optimum heat spreader size for producing maximum net power from high‐concentration photovoltaic systems

Optimum heat spreader size for producing maximum net power from high‐concentration photovoltaic systems

Performance analysis of a single cell‐ultra‐high concentration photovoltaic thermal module based on pin‐fins cooling microchannel

Influence of ZnSe Surface Coatings for Enhancing the Performance of Multicrystalline Silicon Solar Cells

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