Design and optimization study of a densely packed
            <scp>ultrahigh</scp>
            concentration photovoltaic thermal array for desalination usability

AlFalah, Gaeet; Maatallah, Taher; Okasha, Ahmed T.; Al-Amri, Fahad

doi:10.1002/er.7285

Cited by 5 publications

(3 citation statements)

References 44 publications

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“…10 The concentration photovoltaic thermal array has been implemented as another tool for desalination. 11 Using a densely packed ultrahigh concentrated PV array can enhance the PV efficiency and improve the desalination gain at the same time. Almahmoud proposed a hybrid ejector cooling-desalination system with an evacuated tubular solar collector.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on a standalone battery‐less single‐phase photovoltaic desalination system

Abbasi

Ebadi

Khalili

2022

Intl J of Energy Research

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Summary This paper investigates the performance of a battery‐less photovoltaic desalination system. Lead‐acid batteries have been removed from the system due to adverse environmental effects, a shorter lifespan, and to reduce the total cost. Due to the lack of a storage device, starting a high current load like an AC compressor leads to electrical instability of the system. The proposed solution for this problem includes using a combination of two high‐capacity electrolyte capacitors, one at the PV terminals and the other at the single‐phase inverter input terminals. Suitable resistive starters have also been sized and added to the circuit to limit the inrush current of capacitors at the energization moment. An analytical procedure has been introduced to design the optimal size of the capacitors and the starter resistors. The results of a 1.1 kW test system show that using two capacitors, 12 000 μf/ 350 Volts as C1 and 330 000 μf/ 50 Volts as C2, at the same time, can handle a starting current of 12 Amps for the starting period of 100 ms of the AC compressor. The maximum voltage drop on the capacitors will be 48 and 17%, which are in the accepted range, and no instability happens.

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Section: Introductionmentioning

confidence: 99%

Experimental investigation on a standalone battery‐less single‐phase photovoltaic desalination system

Abbasi

Ebadi

Khalili

2022

Intl J of Energy Research

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“…With a consistent distribution of circular axial grooves (plugs) along each pin, the inline pin-fins heat sink achieved the lowest average cell temperature for all Reynolds numbers and can ensure a safe working temperature of 80 °C for the solar cell up to 15,000× concentration ratio and an ambient temperature up to 35 °C. AlFalah et al [14] examined the performance of rectangular fins, elliptical fins, diamond pin-fins, and traditional round pin-fins heat sinks for HCPV systems with concentration ratios ranging from 200× to 1200×. With a maximum solar cell temperature of 81.4 °C and a water temperature rise of 14.21 °C under 1200× and a water inlet velocity of 0.02 m/s −1 , the rectangular fins heat sink outperformed the others in terms of electrical and thermal performance, but higher pumping power was required due to a higher frictional pressure losses of around 78.74 Pa.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Net Channel Based-Heat Sink Designs for Cooling of High Concentration Photovoltaic (HCPV) Systems in Dammam City

Al-Amri

Maatallah

Zachariah³

et al. 2022

Sustainability

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In this study, enhanced net channel based heat sink designs for cooling HCPV systems at geometrical concentration ratios ranging from 500× to 3000× are presented. The effect of increasing the number of layers in the parallel flow net channel, as well as the fraction of the coolant mass flow rate in the counter flow net channel, on the overall performance of the HCPV systems, are investigated. The various configurations of each proposed net channel based-heat sink design are examined, and a comparative analysis between the different proposed designs is performed under the climate weather conditions of Dammam city, Saudi Arabia. On one hand, the double-layered counter flow net channel heat sink outperformed the other designs in terms of electrical efficiency and in keeping the solar cell operating well below the safe operating limits, achieving a reduction in maximum cell temperature relatively compared to the parallel flow net channel with five layers and conventional mini channel of 11.72% and 12.01%, respectively. On the other hand, for effective usability of the heat recovery rate by the cooling mechanism, the parallel flow net channel is the most appropriate design since it has recorded 27.55% higher outlet water temperature than the double-layered counter flow net channel.

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“…AlFalah et al 38 developed a multiphysics module of a densely packed HCPV/T system to simulate different finned heat sink designs under various operating conditions. The authors presented different finned heat sink designs for high concentration photovoltaic thermal systems in order to maximize the collected thermal power while minimizing the required pumping power.…”

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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Design and optimization study of a densely packed ultrahigh concentration photovoltaic thermal array for desalination usability

Cited by 5 publications

References 44 publications

Experimental investigation on a standalone battery‐less single‐phase photovoltaic desalination system

Experimental investigation on a standalone battery‐less single‐phase photovoltaic desalination system

Enhanced Net Channel Based-Heat Sink Designs for Cooling of High Concentration Photovoltaic (HCPV) Systems in Dammam City

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

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