A Passive Cooling System for Increasing Efficiency of Solar Panel Output

Rakino, Sunarno A.; Suherman, Suherman; Hasan, Sharizal; Rambe, Ali Hanafiah; Gunawan,

doi:10.1088/1742-6596/1373/1/012017

Cited by 14 publications

(6 citation statements)

References 3 publications

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“…Active cooling by a method combining metal plate as heat sink and electrical fans had been shown to reduce the solar panel temperature by up to 12°C [16]. Room for improvement for both active and passive cooling methods still exists as active cooling methods tend to be more effective in heat removal but require electrical energy and conversely, passive cooling methods do not require electrical energy for operation but the amount of heat dissipation is generally lower than that of active methods [17,18].…”

Section: Resultsmentioning

confidence: 99%

Design of Augmented Cooling System for Urban Solar PV System

Joon

Jin

2021

MATEC Web Conf.

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Solar photovoltaic (PV) panels have been widely used to convert the renewable energy from the sun to electrical energy to power electrical loads but suffers from relatively low efficiency between 15% to 22%. Typically, the panels have an average lifespan of 25 to 30 years but could degrade quicker due to the panel overheating. Beyond the optimum working temperature of 25°C, a drop of efficiency by 0.4 to 0.5% for every 1°C had been reported. For solar PV applications in urban regions, passive cooling is beneficial due to limited amount of space and lower energy consumption compared to active cooling. A solar PV system with augmented cooling was conducted at a balcony of a condominium from 10am until 2pm. The solar PV system consisted of an Arduino controller, solar panel module, temperature sensor and LCD monitor. Reusable cold and hot gel packs were attached to the bottom of the solar PV. Both setups of solar PV panel with and without the cooling system were placed at the balcony simultaneously for measurement of temperature, output voltage and current. From this research, the outcome of implementing a cooling system to the solar PV increases the efficiency of the energy conversion.

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Section: Resultsmentioning

confidence: 99%

Design of Augmented Cooling System for Urban Solar PV System

Joon

Jin

2021

MATEC Web Conf.

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“…This generally includes systems that use the environment as the ultimate heat sink for cooling without active components. The applications are diverse and range from cooling systems for buildings 3 – 5 , the cooling of lithium batteries 6 , 7 and photovoltaic cells 8 , 9 to the fail-safe cooling of spent-fuel pools in a nuclear power plant 10 – 13 . One representative of these systems is the two-phase closed thermosiphon (TPCT) 14 .…”

Section: Introductionmentioning

confidence: 99%

Enhancing heat transfer at low temperatures by laser functionalization of the inner surface of metal pipes

Holder,

Peter,

Kirsch

et al. 2024

Sci Rep

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The latent heat transfer during vapour condensation in the condenser section of passive heat transport devices such as the two-phase closed thermosiphon is limited by film condensation. Dropwise condensation provides an increase of the heat transfer coefficient by up to one order of magnitude and can be achieved with a water-repellant surface. The inner surface of pipes made from stainless steel was functionalized by laser surface texturing with ultrashort laser pulses and subsequent storage in a liquid containing long-chained hydrocarbons. The pipes were separated into half-pipes by wire eroding to enable laser texturing of the inner surface, and were then joined by electron beam welding after laser texturing. As a result, superhydrophobic and water-repellent surfaces with a contact angle of 153° were obtained on the inner surface of the pipes with a length of up to 1 m. The functionalized pipes were used in the condenser section of a two-phase closed thermosiphon to demonstrate a heat transfer rate of 0.92 kW at 45 °C, which is approximately three times the heat transfer rate of 0.31 kW of a smooth reference pipe.

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“…With white tiles reflectors, power output increased by 16.12%, and surface temperature increased by 2-3% compared to the simple panel. Rakino et al (2019) reported that passive cooling system for increasing efficiency of panel PO. Water and a straight fin heat sink (SFHS) was used as the cooling medium, water passes through aluminum beam cuboid that was attached at the bottom of the panel (50W) and the SFHS are then attached to the cuboids to release heat to the air.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Reflectors and Cooling System on Photovoltaic System in Kano Northwest Nigeria

Tukur,

Abdullahi,

Alhassan

et al. 2023

FJS

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In the effort to improve the efficiency of a photovoltaic system, previous studies have demonstrated the potential of solar reflectors and cooling systems to enhance the performance of Photovoltaic (PV) systems. However, Result varies from Location to Location and a limited research exists on their combined effect. This study investigates the impact of reflectors and cooling on PV system performance in Kano State, Nigeria. Three Experimental setup were tested; (a solar panel without any modifications (PWM), a solar panel with reflectors sides (PWR), and a solar panel with reflectors and a cooling system (PWRC)). These Experiment were set at the optimum tilt angle of 12o in Kano State, Nigeria. The results show that panel with reflectors and panel with reflectors and cooling system both increased the amount of solar radiation (SR) received by an average of 71.06% compared to the control panel system. The surface temperature (ST) of the PWR and PWRC increased by an average of 46.25% and 28.08%, respectively, compared to the PWM. The PWR and PWRC systems increased the amount of short-circuit current (ISC) produced in the panels with an average of 50.02% and 50.03%. The open-circuit voltage (VOC) drop of the panel in the PWR and PWRC systems decreased by an average of 9.91% and 4.39%, respectively, compare to the PWM system. The power output (PO) of the PWR and PWRC systems also increased by an average of 34.89% and 42.29%, respectively, compare to the PWM system.

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A Passive Cooling System for Increasing Efficiency of Solar Panel Output

Cited by 14 publications

References 3 publications

Design of Augmented Cooling System for Urban Solar PV System

Design of Augmented Cooling System for Urban Solar PV System

Enhancing heat transfer at low temperatures by laser functionalization of the inner surface of metal pipes

Performance Evaluation of Reflectors and Cooling System on Photovoltaic System in Kano Northwest Nigeria

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