Performance study on optical splitting film-based spectral splitting concentrated photovoltaic/thermal applications under concentrated solar irradiation

Liang, Huaxu; Wang, Fuqiang; Cheng, Ziming; Shuai, Yong; Lin, Bo; Pan, Yuzhai

doi:10.1016/j.solener.2020.05.103

Cited by 41 publications

(5 citation statements)

References 60 publications

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“…The uncertainty analysis can be calculated by the maximum uncertainty of each parameter; the measured parameters include V I G C m T in T out . The maximum uncertainty of electrical efficiency and thermal efficiency can be calculated as 33,34

\frac{Δ η_{e}}{η_{e}} = \sqrt{{(- \frac{Δ G}{G})}^{2} + {(\frac{normalΔ V}{V})}^{2} + {(\frac{normalΔ I}{I})}^{2}}

\frac{Δ η_{t}}{η_{t}} = \sqrt{{(- \frac{Δ G}{G})}^{2} + {(\frac{normalΔ m}{m})}^{2} + {(- \frac{Δ T_{italicin}}{T_{in}})}^{2} + {(\frac{normalΔ T_{out}}{T_{italicout}})}^{2}}

where Δ η e , Δ η t , Δ G , Δ V , Δ I , Δ T in , Δ T out , Δ m , are the uncertainty of η e , η t , G , V , I , T in , T out , m , respectively.…”

Section: Methodsmentioning

confidence: 99%

Experimental study on active cooling for concentrating photovoltaic cells working at high concentration ratios

Cui

et al. 2021

Int J Energy Res

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Summary Concentrated photovoltaic (CPV) attracts a lot of attention recently because it can achieve much higher efficiency than traditional solar cells by concentrating sunray with an in‐expensive Fresnel lens or parabolic mirror. However, heat dissipation is a critical challenge for CPV solar cells particularly at a high concentration ratio (CR) since the concentrated solar irradiance also results in a large amount of excessive heat. Experimental studies about CPV working at high CR were documented by a few pieces of literature. In this study, the electrical and thermal behavior of active cooling heat sinks with multi‐stage channels for CPV solar cells at both indoor (248× CR) and outdoor (500× and 900× CRs) conditions were comprehensively investigated. The effects of water flow rate, water inlet temperature, season change, and CR on the performance of heat sinks with the different channel numbers and overall size were examined. Convection heat transfer coefficient, electrical, thermal, and cogeneration efficiencies of the heat sinks were evaluated. Results show that the maximum temperature of CPV is significantly reduced as the increase of water flow rate or decreases in the water inlet temperature, meanwhile, the output power is slightly enhanced. The benefits of channel numbers increase are limited, while heat sinks with a cooling area equal to the unpacked cell have higher overall efficiency. Moreover, the convection heat transfer coefficient of the recommended heat sink can reach above 10 kW/(m2 K), with the average CPV cell temperature can be maintained at 63.2°C under 500× CR on Summer Solstice, and 71.4°C under 900× CR on Frost's Descent. Highlights Indoor and outdoor tests of active cooling for CPV cells at high CR were studied. Influences of heat sink designs and operating parameters were analyzed. Convection heat transfer coefficient above 10 kW/(m2 K) is reached. CPV cell average temperature of 63.2°C is achieved on Summer Solstice.

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\frac{Δ η_{e}}{η_{e}} = \sqrt{{(- \frac{Δ G}{G})}^{2} + {(\frac{normalΔ V}{V})}^{2} + {(\frac{normalΔ I}{I})}^{2}}

\frac{Δ η_{t}}{η_{t}} = \sqrt{{(- \frac{Δ G}{G})}^{2} + {(\frac{normalΔ m}{m})}^{2} + {(- \frac{Δ T_{italicin}}{T_{in}})}^{2} + {(\frac{normalΔ T_{out}}{T_{italicout}})}^{2}}

where Δ η e , Δ η t , Δ G , Δ V , Δ I , Δ T in , Δ T out , Δ m , are the uncertainty of η e , η t , G , V , I , T in , T out , m , respectively.…”

Section: Methodsmentioning

confidence: 99%

Experimental study on active cooling for concentrating photovoltaic cells working at high concentration ratios

Cui

et al. 2021

Int J Energy Res

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“…Solar energy generation is applied in several industrial sectors and used for applications that generate energy solutions for the energy transition process, increasing efficiency and reducing environmental impacts 3 and contributing as a solution to the problems generated by the use of traditional fuels and in reducing the dependence on fossil sources. The high cost of current energy sources has encouraged technological research around the world on the potential for generating solar energy in substitution for fossil fuel sources, as these are a representative portion of total consumption, contributing to the reduction of greenhouse gases and in social and economic factors 7 …”

Section: Introductionmentioning

confidence: 99%

“…The high cost of current energy sources has encouraged technological research around the world on the potential for generating solar energy in substitution for fossil fuel sources, as these are a representative portion of total consumption, contributing to the reduction of greenhouse gases and in social and economic factors. 7 Supporting the energy transition requires financing, investment and other policy tools. The economic and political impacts contribute to the energy transition process.…”

mentioning

confidence: 99%

Economic and environmental feasibility of photovoltaic solar energy in industrial processes

Franco

Ravagnani

Franco

2022

Env Prog and Sustain Energy

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Currently, one of the world's concerns, including Brazil, is to obtain answers to reduce energy dependence on fossil fuels. Environmental damage and possible scarcity of fossil fuels highlight the generation of clean energy to reduce environmental degradation. In the present article, it is proposed a model to analyze the economic and environmental feasibility of implementing solar photovoltaic systems in an industry. A case study in Brazil was used to test the model. The selected industrial sector chosen for the installation of the photovoltaic system was the parking lot with an estimated area of 187,653 m 2 . Regarding economic viability, the calculated net present value was $44,730,630.26, the internal rate of return was 14.52% per year, and the payback time was 132 months. The environmental impacts avoided in the use of the photovoltaic solar energy system were analyzed and the amount of carbon dioxide avoided in the atmosphere per kWh generated with the use of this clean energy showed that 25,381 trees would be needed to fix the CO 2 that would be emitted into the atmosphere.

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“…[1][2][3] One type of renewable energy is solar energy, [4][5][6] which have excellent future for natural environment protection, [7][8][9][10] greenhouse gas emission reductions [11][12][13] and air pollution alleviation. [14][15][16][17] Among photothermal, photoelectricity and photochemistry, [18][19][20][21] photovoltaics is environmentally friendly, whose installed capacity has increased dramatically in the past few years. [22][23][24] Yet, the overheating of photovoltaics greatly reduces the efficiency and service life of the photovoltaics.…”

Section: Introductionmentioning

confidence: 99%

Design of Biomimetic Leaf-type Hierarchical Nanostructure for Enhancing the Solar Energy Harvesting of Ultra-thin Perovskite Solar Cells

Liang¹,

Lin²,

Wang³

et al. 2020

ES Energy Environ.

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Ultra-thin perovskite solar cell had the advantages of low cost, high efficiency and flexibility, which had significant potential in application. However, a severe optical loss was often observed in the ultra-thin perovskite solar cell due to the insufficient light absorption. In this study, inspired by the efficient light harvesting of hierarchical structure in leaf, a biomimetic leaf-type hierarchical nanostructure was introduced for designing highly efficient ultra-thin perovskite solar cell. In detail, three layers of hexagonal arrays of silica nanoparticles with different radius constructed the biomimetic leaf-type hierarchical structure. The biomimetic leaf-type hierarchical nanostructure was optimized by finite-difference time-domain method combined with particle swarm optimization algorithm to reduce the light reflection and increase the light absorption of the ultra-thin perovskite solar cell. The results indicated that biomimetic leaf-type hierarchical nanostructure could enhance the light absorption of ultra-thin perovskite solar cell by maximum 39% at the long wavelength. The photocurrent of the perovskite solar cell with biomimetic leaf-type hierarchical nanostructure was 8.4% higher than that of perovskite solar cell without biomimetic

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Performance study on optical splitting film-based spectral splitting concentrated photovoltaic/thermal applications under concentrated solar irradiation

Cited by 41 publications

References 60 publications

Experimental study on active cooling for concentrating photovoltaic cells working at high concentration ratios

Experimental study on active cooling for concentrating photovoltaic cells working at high concentration ratios

Economic and environmental feasibility of photovoltaic solar energy in industrial processes

Design of Biomimetic Leaf-type Hierarchical Nanostructure for Enhancing the Solar Energy Harvesting of Ultra-thin Perovskite Solar Cells

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