Performance enhancement of a photovoltaic module by passive cooling using phase change material in a finned container heat sink

Wongwuttanasatian, Tanakorn; Sarikarin, Tachakun; Suksri, Amnart

doi:10.1016/j.solener.2019.11.053

Cited by 132 publications

(28 citation statements)

References 41 publications

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“…It requires special skill to prepare the eutectic mixture using probe sonication that makes this material unpopular for PV module cooling. In precise, paraffin wax and commercial PCMs are widely used rather than fatty acids [20], [21], [67]- [70]. Currently relaying on the existing technique, paraffin wax selected as PCM to reduce the T PV in this study Paraffin wax is purchased from the SQI Group, Bangkok, without further processing the PCM is analyzed to find the T melt and H m using Digital Scanning Calorimeter (DSC).…”

Section: A Pcm Selection and Dsc Characterizationmentioning

confidence: 99%

Experimental Studies on PV Module Cooling With Radiation Source PCM Matrix

et al. 2020

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Rise in PV module temperature (T PV ) majorly drops the electrical output of the PV system. This research presents a novel cylindrical tube PCM matrix that is not in physical contact with the PV module back surface unlike the existing PCM based PV module cooling techniques. This contactless PCM matrix prevents the PV module from thermal and physical stress, also it blocks thermal energy re-conduction from PCM to PV module. While stored thermal energy from PCM retransferred to the PV module during off-sunshine hours and also when the PCM turns to liquid T PV starts to rise abruptly, this contactless PCM matrix minimizes these issues as PCM matrix receives thermal energy by the mode of radiation and convection; Besides, PCM matrix surface area is not enclosed with the PV module back surface area that reduces the thermal stress and re-conduction. Developed PCM matrix is integrated beneath the PV module at particular distances of 6 mm, 9 mm and 12 mm to optimize the spacing between PV module and PCM matrix. It is found that 6 mm spacing PCM matrix reduced the T PV maximum of 2.5 • C compared to 9 mm and 12 mm spacing. This T PV reduction enhanced the PV module electrical output by 0.2 % than PV without PCM and it is observed that 6 mm is an optimal spacing for the radiation source PCM matrix.

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Section: A Pcm Selection and Dsc Characterizationmentioning

confidence: 99%

Experimental Studies on PV Module Cooling With Radiation Source PCM Matrix

et al. 2020

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“…They obtained the highest increase in generated power relative to the reference case in the presence of nano-composed oil, these are 48.23, 46.63, and 44.74% at solar radiation intensities of 690, 530 and 410 W/m 2 , respectively. The potential to use palm wax to regulate the temperature of PV system was investigated by [ 37 ]. They used a finned PCM enclosure to effect the cooling of the PV module.…”

Section: Introductionmentioning

confidence: 99%

Effect of dual surface cooling of solar photovoltaic panel on the efficiency of the module: experimental investigation

Agyekum

Praveenkumar

Alwan

et al. 2021

Heliyon

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Solar photovoltaic (PV) energy is one of the most widely used renewable energy options around the world. However, its electrical efficiency drops with increasing PV module temperature, it is therefore necessary to find appropriate ways to improve the performance of the module under high temperature conditions. In this study we evaluated the impact of simultaneous dual surface cooling on the PV module's output performance experimentally. The PV module's rear surface was cooled using cotton wick mesh which absorbs water from a perforated pipe and use capillary action to transfer the water down the surface of the rear side of the module. The perforated pipe is strategically positioned at the upper part of the panel and as a result, water from the tank through the holes in the pipe also spread on the front surface of the panel. The experiment recorded a temperature drop of 23.55 °C. This resulted in about 30.3% improvement in the output power of the panel. The cooled PV module also recorded an average efficiency of 14.36% against 12.83% for the uncooled panel. This represent a difference of 1.53% which is 11.9% improvement in the electrical efficiency of the cooled panel. In effect, the proposed approach had a significant positive effect on the energy yield of the PV system.

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“…A passive technique such as buoyancydriven air flow in a duct was used by Brinkworth [1]. PCM cooling techniques were also used by other researchers [2][3][4][5][6]. Active techniques are mainly water and air flow-based techniques [7].…”

Section: Introductionmentioning

confidence: 99%

Power Enhancement of a PV Module Using Different Types of Phase Change Materials

et al. 2021

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Photovoltaic (PV) systems are well-known systems that convert solar energy into electrical energy. Increases in operating temperature induce a drop in conversion efficiency and, thus, in the output power produced by the panel. This paper investigates the effectiveness of using Phase Change Materials (PCMs) in cooling PV modules. Due to its high storage density with limited temperature fluctuations, the latent heat storage in a PCM is an important factor. This depends on the thermophysical properties of PCMs such as the melting point, specific heat capacity, latent heat, density, etc. This paper aims to make a comparison between four types of PCM with different melting points and physical properties. Indoor experimental studies were performed using five prototypes. A halogen lamp was used as a solar simulator to ensure that experiments were carried out under the same irradiance. The first prototype was the reference, which consisted of a PV panel, a stand, and an electric circuit without PCMs. Four other prototypes were investigated, consisting of a PV panel with a container added at the rear face, with each having different types of PCM: sodium sulfate decahydrate, sodium phosphate dibasic dodecahydrate, decanoic acid, and calcium chloride hexahydrate, respectively. The results clearly show the effect of PCMs’ properties on PV temperature profile and power generation.

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Performance enhancement of a photovoltaic module by passive cooling using phase change material in a finned container heat sink

Cited by 132 publications

References 41 publications

Experimental Studies on PV Module Cooling With Radiation Source PCM Matrix

Experimental Studies on PV Module Cooling With Radiation Source PCM Matrix

Effect of dual surface cooling of solar photovoltaic panel on the efficiency of the module: experimental investigation

Power Enhancement of a PV Module Using Different Types of Phase Change Materials

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