Thermal characteristics and thermal stress analysis of solar thermochemical reactor under high-flux concentrated solar irradiation

Zhang, Hao; Shuai, Yong; Lougou, Bachirou Guene; Jiang, Baocheng; Xing, Huaizhong

doi:10.1007/s11431-019-1486-2

Cited by 11 publications

(2 citation statements)

References 39 publications

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“…In order to validate the accuracy of the model, the computational model proposed in this paper was used to calculate the model in Reference [24]. The calculation parameters are as follows: the power of the solar simulator is 10 kW, the inlet velocity is 0.005 m/s, and the pressure is one atmosphere.…”

Section: Model Validationmentioning

confidence: 99%

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Thermal Stress Mechanism of Thermochemical Reactor of 5 kW Solar Simulator with Temperature Distribution as the Load Condition

Huang,

Lin,

Yao

et al. 2024

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In this paper, a solar thermochemical reactor is designed based on a 5 kW non-coaxial concentrating solar simulator, and a mathematical model is established for thermal calculations. The calculated temperature distribution is used as a load condition for thermal stress analyses. The model is used to study the influence of the solar simulator power, solar reactor inner wall material’s emissivity, working pressure, gas inlet velocity, and thermocouple opening diameter on the thermal stress of the solar reactor. The results show that thermal stress increases with the increase in solar simulator power and the emissivity of the inner wall material in the solar reactor. The inlet velocity and working pressure have little effect on the thermal stress of the reactor and cannot prevent damage to the reactor. In the case of maintaining the diameter of the thermocouple at the front end of the reactor, increasing the diameter of the thermocouple inside the reactor leads to an increase in thermal stress around the reactor. Meanwhile, using a finer thermocouple can reduce the thermal stress inside the reactor and extend its service life, which will provide a foundation for designing practical industrial applications in the future.

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Section: Model Validationmentioning

confidence: 99%

“…Additionally, the reactor demonstrated an ability to flexibly change its operating conditions. Zhang et al [24] simulated the thermodynamic process of thermochemical reactors under high solar radiation and discussed the causes of thermal stress formation and the location of ceramic damage.…”

Section: Introductionmentioning

confidence: 99%