Experimental study of compound parabolic concentrator with flat plate receiver

Maher, Hareth; Alomar, Omar Rafae; Ali, Firas Aziz; Salih, Mothana M. Mohamed

doi:10.1016/j.applthermaleng.2019.114678

Cited by 30 publications

(10 citation statements)

References 18 publications

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“…In combination, they were utilized as a practical tool to optimize many thermodynamic‐based systems throughout solar researches 15 . Repeatedly stated, it was proven that the main source of energy%exergy loss occurs inside the receiver components 16 …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel analysis of second law and irreversibility for a solar power plant using heliostat field and molten salt

Zolfagharnasab

Aghanajafi

Kavian

et al. 2020

Energy Science & Engineering

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Section: Introductionmentioning

confidence: 99%

“…15 Repeatedly stated, it was proven that the main source of energy%exergy loss occurs inside the receiver components. 16 This subject encouraged researchers to do more investigations on the receiver's performance. 17 As an instance, Yao et al 18 simulated a 1 MW solar thermal central receiver system in China.…”

Section: Introductionmentioning

confidence: 99%

Novel analysis of second law and irreversibility for a solar power plant using heliostat field and molten salt

Zolfagharnasab

Aghanajafi

Kavian

et al. 2020

Energy Science & Engineering

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“…Abd et al 12 designed a new compound parabolic concentrator with concentration ratio of 1.5 having a flat plate receiver and tested under the climatic conditions of Mosul city/Iraq. The efficiency of the collector increased with increase in flow rate due to heat gain and peaked during February and March, reaching a maximum of 26.5%.…”

Section: Introductionmentioning

confidence: 99%

“…Reportedly, as the position was lowered, the mixing of high and low temperature water is delayed thus improving the stratification and consequently, the fill efficiency of the water tank by 2.6% for 1 L min À1 . Abd et al 12 designed a new compound parabolic concentrator with concentration ratio of 1.5 having a flat plate receiver and tested under the climatic conditions of Mosul city/Iraq. The efficiency of the collector increased with increase in flow rate due to heat gain and peaked during February and March, reaching a maximum of 26.5%.…”

mentioning

confidence: 99%

Thermal performance enhancement of compound parabolic concentrator solar collector using latent heat thermal energy storage

Natesamurthi

Kumaresan

Christopher

et al. 2021

Environ Prog Sustainable Energy

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Employment of compound parabolic concentrator (CPC) solar collector with evacuated tubes enables effective collection of solar energy. The main objective of the present experimental work is to investigate thermal performance of CPC solar collector coupled with sensible and latent heat thermal energy storage (TES) system. Depending on obtained thermal stratification in sensible TES system, a commercial phase change material (PCM)—OM 65 has been selected and packed only at top quarter section of the TES system. Results showed an appreciable cumulative energy storage of 21 MJ d−1 due to existence of desired temperature driving potential during charging. A higher thermal stratification has been achieved in latent heat TES system, reducing the “MIX” number and supplying the heat transfer fluid at lower temperature to the collector. Due to enhanced useful heat energy gained, thermal efficiency of CPC collector reaches a maximum of 49% while coupling with latent heat TES system. The outcome of the study highlights the potential role of CPC and PCMs in solar thermal system, particularly for water heating applications.

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“…The results showed that the average output power of CPC-PV cells of a small size was 424,960 mW, which is slightly higher than that of a larger size which gave 420,713 mW. Also, the experimental study on a new model of CPC with a flat-plate PV was considered by Abd et al [11]. They found that the CPC area greatly influenced the collector performance.…”

Section: Introductionmentioning

confidence: 99%

Thermal Profile of a Low-Concentrator Photovoltaic: A COMSOL Simulation

Alqurashi

Al-Tuwirqi

Ganash

2020

International Journal of Photoenergy

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With the gradual reduction of fossil fuels, it is essential to find alternative renewable sources of energy. It is important to take advantage of substitutes that are less expensive and more efficient in energy production. Photovoltaic concentrators (CPVs) are effective methods through which solar energy can be maximized resulting in more conversion into electrical power. V-trough concentrators are the simplest types of low-CPV in terms of design as it is limited to the use of two plane mirrors with a flat photovoltaic (PV) plate. A consequence of concentrating more solar radiation on a PV panel is an increase in its temperature that may decrease its efficiency. In this work, the thermal profile of the PV plate in a V-trough system will be determined when this system is placed in different geographical locations in Saudi Arabia. The simulation is conducted using COMSOL Multiphysics software with a ray optics package integrated with a heat transfer routine. The 21st of June was chosen to conduct the simulation as it coincides with the summer solstice. The employment of wind as a cooling method for V-troughs was investigated in this work. It was found that with the increase in wind speed, the PV panel temperature dropped significantly below its optimum operating temperature. However, due to the mirrors’ attachment to the PV panel, the temperature distribution on the surface of the panel was nonuniform. The temperature gradient on the PV surface was reduced with the increase of wind speed but not significantly. Reducing the size of the mirrors resulted in a partial coverage of solar radiation on the PV surface which helped in reducing the temperature gradient but did not eliminate it. This work can assist in testing numerous cooling models to optimize the use of V-troughs and increase its efficiency especially in locations having high ambient temperatures.

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Experimental study of compound parabolic concentrator with flat plate receiver

Cited by 30 publications

References 18 publications

Novel analysis of second law and irreversibility for a solar power plant using heliostat field and molten salt

Novel analysis of second law and irreversibility for a solar power plant using heliostat field and molten salt

Thermal performance enhancement of compound parabolic concentrator solar collector using latent heat thermal energy storage

Thermal Profile of a Low-Concentrator Photovoltaic: A COMSOL Simulation

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