Design and experimental study of a 30 kWe adjustable solar simulator delivering high and uniform flux

Wang, Jikang; Qiu, Yu; Li, Qing; Xu, Mingpan; Wei, Xiudong

doi:10.1016/j.applthermaleng.2021.117215

Cited by 28 publications

(4 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Each individual's phenotype represents the three optimization objectives. The genes in the i th individual's chromosome (X i ) determine its phenotypes and represent the variables to be optimized, which can be expressed using Equation (10).…”

Section: Optimization Approachmentioning

confidence: 99%

“…for SCO 2 regenerative cycle (p max , p min , ε HTR , ε LTR , SR) for SCO 2 recompression cycle (10) Here, i = 1, 2, . .…”

Section: Optimization Approachmentioning

confidence: 99%

“…The primary objective of solar thermal power technology development is to enhance thermal efficiency, elevate specific work, and accomplish large-scale heat storage. Among the available solar thermal power technologies, including the solar power tower (SPT) [7,8], solar dish collector [9,10], linear Fresnel reflector [11,12] and parabolic trough collector [13][14][15], the SPT is a promising option that is expected to meet the above development requirements [16].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Triple-Objective Optimization of SCO2 Brayton Cycles for Next-Generation Solar Power Tower

Qiu

2023

Energies

Self Cite

View full text Add to dashboard Cite

In this paper, the SCO2 Brayton regenerative and recompression cycles are studied and optimized for a next-generation solar power tower under a maximum cycle temperature of over 700 °C. First, a steady-state thermodynamic model is developed and validated, and the impacts of different operating parameters on three critical performance indexes, including the cycle thermal efficiency, specific work, and heat storage temperature difference, are analyzed. The results reveal that these performance indexes are influenced by the operating pressures, the SCO2 split ratio, and the effectiveness of the regenerators in complex ways. Subsequently, considering the three performance indexes as the optimization objectives, a triple-objective optimization is carried out to determine the optimal operating variables with the aim of obtaining Pareto solutions for both cycles. The optimization indicates that the regenerative cycle can achieve the maximum heat storage temperature difference and the maximum specific work of 396.4 °C and 180.6 kW·kg−1, respectively, while the recompression cycle can reach the maximum thermal efficiency of 55.95%. Moreover, the optimized maximum and minimum pressure values of both cycles are found to be around 30 MPa and 8.2 MPa, respectively. Additionally, the distributions of the optimized values of the regenerator effectiveness and the SCO2 split ratio show different influences on the performance of the cycles. Therefore, different cycles with different optimized variables should be considered to achieve specific cycle performance. When considering thermal efficiency as the most important performance index, the recompression cycle should be adopted. Meanwhile, its SCO2 split ratio and the regenerator effectiveness should be close to 0.7 and 0.95, respectively. When considering heat storage temperature difference or specific work as the most important performance index, the regenerative cycle should be adopted. Meanwhile, its regenerator effectiveness should be close to 0.75. The results from this study will be helpful for the optimization of superior SCO2 cycles for next-generation solar tower plants.

show abstract

Section: Optimization Approachmentioning

confidence: 99%

“…for SCO 2 regenerative cycle (p max , p min , ε HTR , ε LTR , SR) for SCO 2 recompression cycle (10) Here, i = 1, 2, . .…”

Section: Optimization Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Triple-Objective Optimization of SCO2 Brayton Cycles for Next-Generation Solar Power Tower

Qiu

2023

Energies

Self Cite

View full text Add to dashboard Cite

show abstract

“…There are different types of solar simulators presented in the state of the art. These simulators usually use LED lights, [4][5][6][7] xenon-based lights, [8][9][10][11] or QTH lamps. 12,13 Gheorghian et al 14 proposed a solar simulator that uses two different lights sources: four floodlights halogen lamps and two lamps arrangements, both of them capable of producing a nonuniformity of irradiance under 10% over an area of 31 × 31 cm 2 .…”

mentioning

confidence: 99%

Optimal design and experimental test of a solar simulator for solar photovoltaic modules

Cortés-Severino

Cárdenas-Bravo

Barraza

et al. 2021

Energy Science & Engineering

View full text Add to dashboard Cite

The relevance of determining the health status of Solar PhotoVoltaic Modules SPVM leads to the development of specialized test equipment. These tests are classified according to the electrical and environmental characteristics, that is, online, offline, indoor, and outdoor tests. Outdoor tests are employed to determine the electrical behavior of the SPVM under real atmospheric conditions. However, outdoor tests are subject to variable environmental conditions; therefore, it is unusual to achieve reproducible results. In order to overcome this challenge, indoor tests are incorporated, providing a controlled environment under laboratory conditions for testing, usually called

show abstract

Concentrated Solar Thermal-Based Hydrogen Generation: Some Recent Findings and a Proposal for Experiment Setup

Arya,

Awasthi,

Hedau

et al. 2024

Advances in Sustainability Science and Technology

View full text Add to dashboard Cite

Design and experimental study of a 30 kWe adjustable solar simulator delivering high and uniform flux

Cited by 28 publications

References 38 publications

Triple-Objective Optimization of SCO2 Brayton Cycles for Next-Generation Solar Power Tower

Triple-Objective Optimization of SCO2 Brayton Cycles for Next-Generation Solar Power Tower

Optimal design and experimental test of a solar simulator for solar photovoltaic modules

Concentrated Solar Thermal-Based Hydrogen Generation: Some Recent Findings and a Proposal for Experiment Setup

Contact Info

Product

Resources

About