Optical alignment and radiative flux characterization of a multi-source high-flux solar simulator

Pottas, Johannes; Li, Lifeng; Habib, Mustafa; Wang, Chi-Hwa; Coventry, Joe; Lipiński, Wojciech

doi:10.1016/j.solener.2022.02.026

Cited by 11 publications

(2 citation statements)

References 74 publications

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“…The HFSS peak flux of 7.74 MW.m -2 on a circular surface of 60 mm of diameter was measured. Pottas et al [4] present an overview of the existing solar simulators.…”

Section: Introductionmentioning

confidence: 99%

Design and numerical simulation of a 45 kW_el multi-source high-flux solar simulator as a heating source of dielectric materials positioned in a microwave characterization cavity

Touoyem Talla,

Henriot,

Duvaut

et al. 2024

J. Phys.: Conf. Ser.

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This study reports the design and modelling of a high-flux solar simulator (HFSS) combined to a resonant cavity for microwave dielectric properties characterization of ceramics at very high temperatures. The HFSS comprises seven xenon arc lamps with ellipsoidal reflectors, delivering a maximal electrical power of 6.5 kWel each. Positioned on a virtual sphere of around 1600 mm radius, the lamps provide concentrated irradiation heating on a sample positioned inside the resonant cavity. The propagation of the lamp’s irradiation to the sample and the cavity is simulated using Monte Carlo ray tracing method. An ANSYS Fluent finite volume method for solving the resulting multimode heat transfer and flow indicate a radiative flux reaching 1.84 MW m−2, and a sample temperature of approximately 1470°C with 10 % non-uniformity. These results suggest that the designed heating system and resonant cavity is suitable for conducting microwave dielectric properties characterization of refracting ceramic materials at high temperatures, addressing a gap in studies focusing on temperatures exceeding 1000°C.

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“…The HFSS peak flux of 7.74 MW.m -2 on a circular surface of 60 mm of diameter was measured. Pottas et al [4] present an overview of the existing solar simulators.…”

Section: Introductionmentioning

confidence: 99%

Design and numerical simulation of a 45 kW_el multi-source high-flux solar simulator as a heating source of dielectric materials positioned in a microwave characterization cavity

Touoyem Talla,

Henriot,

Duvaut

et al. 2024

J. Phys.: Conf. Ser.

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“…[15][16][17][18][19] Excessive building temperatures in hot weather can be decreased by reflecting the entire solar irradiation while radiating heat to frigid cosmic space. [19][20][21][22][23][24] In the past few years, extensive efforts have been made to promote daytime radiative cooling technology. Numerous materials and structures have been proposed to improve the cooling performance using multilayer films, [25,26] photonic crystals, [27] dielectric particle mixtures, [28][29][30][31][32] micro/nanoporous structures, [33][34][35] and biomimetic wrinkle structures.…”

mentioning

confidence: 99%

Low‐Cost and Large‐Scale Producible Biomimetic Radiative Cooling Glass with Multiband Radiative Regulation Performance

Zhang

Li²,

Wang

et al. 2022

Advanced Optical Materials

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As human civilization progressed and economic growth accelerated, researchers focused on creating comfortable living conditions to satisfy the growing requirements for cooling. [1][2][3][4] Active cooling apparatuses, such as air conditioners, have been broadly employed for the heat management of envelopments, such as buildings and vehicles. However, they deplete a considerable amount of energy. [5][6][7][8] Approximately 44% of the total energy expenditure in buildings can be attributed to heating, cooling, ventilation, and lighting systems in recently constructed buildings. [9] Air conditioners are responsible for the decrease in the driving range of electric vehicles of up to 53.7%. [10,11] It has become a long-term goal for advanced proactive temperature-managed envelopments to maintain an optimal interior air temperature with the least energy expenditure.Solar irradiation is a significant factor influencing energy depletion in the refrigeration systems of vehicles and buildings, accounting for almost 40%-70% of the entire cooling power burden in vehicles and buildings. [12,13] Generally, the solar irradiance power density under AM1.5 can reach 1000 W m −2 , with visible, infrared, and UV percentages of 50%, 43%, and 7%, respectively. [14] To eliminate the negative effects of solar radiation on the cooling energy load of buildings, zero-energy passive radiative cooling is a practical energy conservation tactic. [15][16][17][18][19] Excessive building temperatures in hot weather can be decreased by reflecting the entire solar irradiation while radiating heat to frigid cosmic space. [19][20][21][22][23][24] In the past few years, extensive efforts have been made to promote daytime radiative cooling technology. Numerous materials and structures have been proposed to improve the cooling performance using multilayer films, [25,26] photonic crystals, [27] dielectric particle mixtures, [28][29][30][31][32] micro/nanoporous structures, [33][34][35] and biomimetic wrinkle structures. [36,37] Nevertheless, most daytime radiative cooling technologies do not consider lighting and esthetic purposes and cannot be applied to objects such as the windows and glass curtain walls of buildings and vehicles. [38][39][40][41][42] Conventional windows (particularly skylights) in vehicles and buildings transmit almost 90% of the total incident solar radiation [43][44][45] Common glass without spectral regulation effect cannot offer an energy-saving function, and radiative cooling technology without visible transparency cannot satisfy the illumination and esthetic demands. Herein, the concept of utilizing a biomimetic beetle cuticle structure, guided by principles of Chinese Taoist philosophy, is proposed to accomplish efficient radiative regulation. Subsequently, low-cost biomimetic radiative cooling (Bio-RC) glass is presented, which can reduce the temperature of buildings throughout daytime by blocking near-infrared (NIR) radiation, conveying visible light, and emitting heat within the atmospheric window. Utilizing only three laye...

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Tunable high-flux solar simulator with enhanced uniformity for concentrated solar energy applications

Tian,

Lou,

Yang

et al. 2024

Applied Energy

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Optical alignment and radiative flux characterization of a multi-source high-flux solar simulator

Cited by 11 publications

References 74 publications

Design and numerical simulation of a 45 kW_el multi-source high-flux solar simulator as a heating source of dielectric materials positioned in a microwave characterization cavity

Design and numerical simulation of a 45 kW_el multi-source high-flux solar simulator as a heating source of dielectric materials positioned in a microwave characterization cavity

Low‐Cost and Large‐Scale Producible Biomimetic Radiative Cooling Glass with Multiband Radiative Regulation Performance

Tunable high-flux solar simulator with enhanced uniformity for concentrated solar energy applications

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Optical alignment and radiative flux characterization of a multi-source high-flux solar simulator

Cited by 11 publications

References 74 publications

Design and numerical simulation of a 45 kWel multi-source high-flux solar simulator as a heating source of dielectric materials positioned in a microwave characterization cavity

Design and numerical simulation of a 45 kWel multi-source high-flux solar simulator as a heating source of dielectric materials positioned in a microwave characterization cavity

Low‐Cost and Large‐Scale Producible Biomimetic Radiative Cooling Glass with Multiband Radiative Regulation Performance

Tunable high-flux solar simulator with enhanced uniformity for concentrated solar energy applications

Contact Info

Product

Resources

About

Design and numerical simulation of a 45 kW_el multi-source high-flux solar simulator as a heating source of dielectric materials positioned in a microwave characterization cavity

Design and numerical simulation of a 45 kW_el multi-source high-flux solar simulator as a heating source of dielectric materials positioned in a microwave characterization cavity