A simple passive cooling structure and its heat analysis for 500× concentrator PV module

Araki, Kiyomichi; Uozumi, H.; Yamaguchi, Masafumi

doi:10.1109/pvsc.2002.1190913

Cited by 67 publications

(49 citation statements)

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“…4 Voltage at maximum power point. 5 Power output at maximum power point. positioned 3.5 mm above the PV module as illustrated in Figure 3(c).…”

Section: Properties Of the Heat Reflector Window (Hrw) Glassmentioning

confidence: 99%

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Symmetric Compound Parabolic Concentrator with Indium Tin Oxide Coated Glass as Passive Cooling System for Photovoltaic Application

Paul

2016

Journal of Solar Energy

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One problem with concentrating photovoltaic systems is the increase in operating photovoltaic module temperature which results in power output reduction. Indium Tin Oxide (ITO) coated glasses exhibit both high transmittance in the visible region and high reflectance in the infrared region of the solar spectrum. Such materials can be used as selective windows in photovoltaic modules operating under concentrating system enabling passive cooling. In this paper, a Heat Reflector Window (HRW) consisting of a glass coated with 180 nm layer of ITO was experimentally tested. The ITO coated glass had a transmittance of about 85% in the visible region and over 80% reflectance in the infrared region of the solar spectrum and was placed at the exit aperture of a Compound Parabolic Concentrator (CPC). Results indicate that the temperature of a photovoltaic module under CPC with the HRW was reduced by about 50% as compared to a similar photovoltaic module with CPC but without the HRW. However, due to presence of the HRW at the exit aperture of the CPC, the photovoltaic module with the CPC and HRW received less solar irradiance compared to a similar photovoltaic module with the CPC but without HRW.

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“…4 Voltage at maximum power point. 5 Power output at maximum power point. positioned 3.5 mm above the PV module as illustrated in Figure 3(c).…”

Section: Properties Of the Heat Reflector Window (Hrw) Glassmentioning

confidence: 99%

“…The cooling of the PV module under a concentrating system can be achieved by either passive cooling methods [5][6][7][8] or active cooling methods [6,9,10]. Although most active cooling methods are more effective than existing passive cooling systems, they require supply of external energy.…”

Section: Introductionmentioning

confidence: 99%

Symmetric Compound Parabolic Concentrator with Indium Tin Oxide Coated Glass as Passive Cooling System for Photovoltaic Application

Paul

2016

Journal of Solar Energy

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“…* super-high-pressure and vacuum-free lamination of the solar cell that suppresses the temperature rise to 20 C under 550Â geometric concentration illumination by sunlight; 7,8 * direct and void-free soldering technologies of the broad metal ribbon to the solar cell, suppressing hot-spots and reducing the resistance, thereby allowing a current 400 times higher than normal non-concentration operation to be passed with negligible voltage loss; 8 * a new encapsulating polymer that survives exposure to high-concentration UV and heat cycles; 9 * beam-shaping technologies that illuminate the square aperture of the solar cell, from a round concentration spot;…”

Section: Technology Overviewmentioning

confidence: 99%

Development of concentrator modules with dome-shaped Fresnel lenses and triple-junction concentrator cells

Araki

Uozumi

Egami

et al. 2005

Prog. Photovolt: Res. Appl.

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The status of the development of a new concentrator module in Japan is discussed based on three arguments, performance, reliability and cost. We have achieved a 26Á6% peak uncorrected efficiency from a 7056 cm 2 400Â module with 36 solar cells connected in series, measured in house. The peak uncorrected efficiencies of the same type of the module with 6 solar cells connected in series and 1176 cm 2 area measured by Fraunhofer ISE and NREL are reported as 27Á4% and 24Á8% respectively. The peak uncorrected efficiency for a 550Â and 5445 cm 2 module with 20 solar cells connected in series was 28Á9% in house. The temperature-corrected efficiency of the 550Â module under optimal solar irradiation condition was 31Á5 AE 1Á7%. In terms of performance, the annual power generation is discussed based on a side-by-side evaluation against a 14% commercial multicrystalline silicon module. For reliability, some new degradation modes inherent to high concentration III-V solar cell system are discussed and a 20-year lifetime under concentrated flux exposure proven. The fail-safe issues concerning the concentrated sunlight are also discussed. Moreover, the overall scenario for the reduction of material cost is discussed.

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“…Generally, there are various cooling methods for the HCPV system in the literature, such as the passive air cooling [5]- [9], active air cooling [10], water cooling [11], [12], directly-immersed cooling [13], heat pipe cooling [14], micro-channel cooling [15], [16], jet impingement cooling [17], and Peltier effect cooling [18], [19]. In consideration of the reliability of cooling device, the passive air cooling may be the most practical cooling solution for the HCPV system.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Solar Enhanced Passive Air Cooling System for Concentration Photovoltaic Module Heat Dissipation

Zou¹,

Gong²,

Wang³

et al. 2017

JOCET

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Abstract-The major issue related to the passive air cooling technology for high concentration photovoltaic (HCPV) module is that their heat dissipation efficiencies highly rely on the ambient temperature and wind speed. It may not provide enough cooling for solar cells causing the malfunction of HCPV module under the worst case scenario, i.e., high ambient temperature and no wind condition. In this study, a novel passive air cooling device, named as Solar Enhanced Passive Air Cooling System (SEPACS), was proposed. To verify its performance advantage over conventional aluminum plate heat sink, a three dimensional model was developed in the CFD software. Numerical comparative analysis shows that the SEPACS can keep cell temperature under 75 o C when the concentration ratio reaches to 700, while solar cells cooled by conventional aluminum plate heat sink would be overheated at same concentration ratio.

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A simple passive cooling structure and its heat analysis for 500× concentrator PV module

Cited by 67 publications

References 1 publication

Symmetric Compound Parabolic Concentrator with Indium Tin Oxide Coated Glass as Passive Cooling System for Photovoltaic Application

Symmetric Compound Parabolic Concentrator with Indium Tin Oxide Coated Glass as Passive Cooling System for Photovoltaic Application

Development of concentrator modules with dome-shaped Fresnel lenses and triple-junction concentrator cells

Numerical Investigation of Solar Enhanced Passive Air Cooling System for Concentration Photovoltaic Module Heat Dissipation

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