An investigational back surface cooling approach with different designs of heat-absorbing pipe for PV/T system

Bhattacharjee, Subhadeep; Acharya, Shantanu; Potar, Anil; Meena, Anurag; Bairwa, Dhara Singh; Bhagora, Manish; Meena, Pukhraj; Gautam, Prashant

doi:10.1002/er.3977

Cited by 20 publications

(9 citation statements)

References 30 publications

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“…Bhattacharjeeetal. [12] performed experimental investigations using three different designs of solar photovoltaic panel (circular spiral, circular spiral semi-flattened, and semi-oval serpentine) to absorb heaton the back surface. The results showed that a circular spiral semi-flattened absorber most optimally performedamong all the investigated types because it showed highest efficiency (4.32%) and fill factor (19.80%).In a recent indoor study, Al-Waelietal.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of using graphene nanoplatelets and hybrid nanofluid as coolant in photovoltaic thermal systems

ALSHIKHI

Kayfeci

2022

Therm sci

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It is a common observation that the photovoltaic (PV) panelshows a compromised performance when its temperature rises. To handle the performance reduction, most PV panels are equipped with a thermal absorber for removing the solar cells? excessive heatwith the help of a heat transfer fluid. The mentioned thermal absorber system is termed as PV thermal or simply PV/T. This study aims to experimentally investigate the effectsof a graphene nano-platelets (GNP) nanofluid, distilled water, and hybrid nanofluid (HyNF)as transfer fluids in PV/Tcollectors. A hybrid nanofluid comprises aluminum oxide (Al2O3) and GNP. An outdoor experimental setup was installed and tested under the climatic conditions in Karab?k (Turkey) to measure the inlet as well as outlet PV/Tfluid temperatures, ambient temperature with solar radiation, and surface temperatures of both PV/T collector and the PV panel. The mass percentage of the coolant fluids was 0.5% (by weight) and their flow rate was 0.5L/m. Resultsshow that the (GNP)nanofluid is the most effective fluid because it showed superior thermal efficiency among all the tested fluids. Adding a thermal unit to the PV/Tunit increased the overall energy efficiency by 48.4%, 52%, and 56.1% using distilled water, hybrid nanofluid, and graphene nanofluid, respectively.

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Section: Introductionmentioning

confidence: 99%

Experimental investigation of using graphene nanoplatelets and hybrid nanofluid as coolant in photovoltaic thermal systems

ALSHIKHI

Kayfeci

2022

Therm sci

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“…By pointing the importance of PV surface temperature, Bhattacharjee et al presented three new designs to decrease the panel temperature for absorbers places on the back of the PV in their experimental research. They indicated that the circular spiral semiflattened design absorber has the best results for the PV cooling . Hader and Al‐Kouz focused on employing heat exchanger with attached fins to the parallel plates and water‐Al 2 O 3 nanofluid as a working fluid in their theoretical study …”

Section: Introductionmentioning

confidence: 99%

“…They indicated that the circular spiral semiflattened design absorber has the best results for the PV cooling. 40 Hader and Al-Kouz focused on employing heat exchanger with attached fins to the parallel plates and water-Al 2 O 3 nanofluid as a working fluid in their theoretical study. 41 Related to the natural zeolites, there are a few studies on natural zeolites for solar energy in the literature.…”

Section: Introductionmentioning

confidence: 99%

Energy, exergy, and economical analyses of a photovoltaic thermal system integrated with the natural zeolites for heat management

Kandilli

2019

Int J Energy Res

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Summary In this study, the first time in the literature, natural zeolite has been employed for photovoltaic thermal (PVT) and experimentally tested as a thermal energy storage material. The main aim of the paper is to introduce natural zeolite as a heat storage material for PVT systems. The PVT systems integrated with phase change materials and natural zeolite were designed, the components of the system were explained, the thermodynamical modelling including the first and second laws was presented, the system performances were evaluated, performance parameters were investigated, energy and exergy efficiencies were determined, and economical analyses of each system were performed. Besides, all results were compared with a conventional PVT system. The average overall energy efficiency values for PVT experiments were 33% for paraffin, 37% for stearic acid, 40% for zeolite, and 32% for conventional PVT systems. The payback period of the PVT system with paraffin, zeolite, stearic acid, and conventional PVT was calculated as 10, 8, 9, and 9 years, respectively. The results show that the natural zeolite is a material with significant potential to be used for heat management in PVT for any meteorological condition.

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“…The PV/T solar system was investigated by He et al where the influence of PV cell to thermal characteristics of the PV/T solar system was investigated. Bhattacharjee et al investigated the usage of heat‐absorbing pipe in a different design to cool the back surface of PV/T system.…”

Section: Introductionmentioning

confidence: 99%

A novel hybrid photovoltaics/thermoelectric cooler distillation system

2018

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Summary In this paper, a novel hybrid photovoltaics/thermoelectric cooler (PV/TEC) distillation system has been introduced. The limitation for distillation system working under hot arid climate is the heat removal required for the condensation process. The novelty of the proposed system is that it utilizes TEC to improve the condensation process. The proposed system composed of two porous layers separated by an air gap. The upper porous layer is installed at the back of a PV module; the lower porous layer is installed at the top of a TEC modules layer. This system can provide the demand of electricity and potable water for those people who live in rural areas (using one unit or more). The proposed system prevents PV module from overheating and actively enhancing the condensation process of the evaporated water. A steady‐state mathematical model has been proposed. This model was solved and simulated by equation solver software. Wind speed, solar radiation, and ambient temperature effect on the system performance were simulated and discussed. Results showed that the maximum productivity of the system reached an ambient temperature of 298 K, solar radiation of 1000 W/m2 and wind speed of 5.5 m/s. The maximum yield of the system was 4.2 kg of distilled water per day with a net electrical output power of 73 W with an overall efficiency of 57.9% and PV cell efficiency of 12.32%.

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An investigational back surface cooling approach with different designs of heat-absorbing pipe for PV/T system

Cited by 20 publications

References 30 publications

Experimental investigation of using graphene nanoplatelets and hybrid nanofluid as coolant in photovoltaic thermal systems

Experimental investigation of using graphene nanoplatelets and hybrid nanofluid as coolant in photovoltaic thermal systems

Energy, exergy, and economical analyses of a photovoltaic thermal system integrated with the natural zeolites for heat management

A novel hybrid photovoltaics/thermoelectric cooler distillation system

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