Thermal Stress Analysis of Absorber Tube for a Parabolic Collector under Quasi-Steady State Condition

Abedini-Sanigy, M.H.; Ahmadi, Farzin; Rad, Ebrahim Goshtasbi; Yaghoubi, M.

doi:10.1016/j.egypro.2015.03.002

Cited by 23 publications

(5 citation statements)

References 7 publications

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“…The findings of Ajona et al (1996) showed that temperature differences of 50 K occur at the circumference of a stainless steel tube of a collector accommodating stratified flow, where annular flow leads to 3 K difference only. A large temperature gradient at the tube circumference can lead to bending of the tube or breaking of the vacuum space glass casing (Odeh et al, 2000;Abedini-Sanigy et al, 2015). Moreover, the occurrence of slug flow is possible under high radiative heat fluxes, which can in turn can bring issues such as undesirable flow transitions (Odeh et al, 2000) with high circumference temperature oscillations that can lead to local dry-out spots (Ghajar, 2005), and vibrations (Al-Hashimy et al, 2016) that can lead to the physical damaging of brittle systems such as the CSP collector's glass components.…”

Section: Considerations On Flow Boiling Under High Radiative Heat Fluxmentioning

confidence: 99%

Thermal Energy Processes in Direct Steam Generation Solar Systems: Boiling, Condensation and Energy Storage – A Review

et al. 2019

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Section: Considerations On Flow Boiling Under High Radiative Heat Fluxmentioning

confidence: 99%

Thermal Energy Processes in Direct Steam Generation Solar Systems: Boiling, Condensation and Energy Storage – A Review

et al. 2019

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“…Abedini-Sanigy [64] analysed thermal stress, AT being under quasi-steady state conditions. The solar flux is calculated to obtain the temperature distribution on the tube, deflection and thermal stresses.…”

Section: Thermal Issues In Absorber Tubes and Thermal Storage System mentioning

confidence: 99%

A review of the application performances of concentrated solar power systems

2019

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The global energy production model is changing from fossil fuels to renewable and nuclear energies. Concentrated solar power is one of the growing technologies that is leading this process. This growth implies the sophistication and size of the systems and, therefore, it requires an increase in maintenance tasks to ensure reliability, availability, maintainability and safety. The aim of this paper is to describe the current context of concentrated solar power, to summarise and analyse the main degradation mechanisms and the main techniques to detect, prevent and mitigate these faults. An exhaustive literature study is presented, considering the most advanced techniques and approaches. A novel qualitative and quantitative analysis of the literature is provided. Finally, the current trends and the future challenges in this field are gathered from this study.

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“…The thermal stress analysis of the tube receiver [13] with focused radiation was investigated for different material conditions and it was more appropriate to use copper material instead of stainless steel. For a parabolic collector, thermal stress analysis [14] was carried out on absorber tubes and it was seen that the highest tube deformation occurred in the supports. For a circular tube, heat transfer and thermal stresses [15] were investigated and it was determined that there was a relationship between the resulting stresses and the Biot number.…”

Section: Introductionmentioning

confidence: 99%

Structural analysis of embedded hollow tubes on straight and curved platforms under thermal loads

Yavuz

2021

International Advanced Researches and Engineering Journal

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Tube systems are widely used in heat transfer and intensive research is being done on positioning tubes on a platform. The platform structure is constantly exposed to thermal changes under operating conditions and the resulting stresses cause damage to existing systems. In this study, 8 thin-walled tubes were positioned on flat and curved platforms that were widely used and the stress behavior under thermal effects was investigated. Finite element analysis was used, and steadystate thermal condition was considered in the numerical investigation. The effects of temperature difference between platform surfaces and the thermal conductivity at the tube surfaces were investigated. It has been determined that the stress on the platform is higher than the stress on the tubes and the increase in the temperature difference on the platform surfaces increases the stress drastically. The increased thermal conductivity coefficient on the tube surface reduced the stresses on the platform and increased fatigue performance. Flat platform has lower contact pressure and platform stresses and better fatigue behavior. Results are discussed in detail.

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Thermal Stress Analysis of Absorber Tube for a Parabolic Collector under Quasi-Steady State Condition

Cited by 23 publications

References 7 publications

Thermal Energy Processes in Direct Steam Generation Solar Systems: Boiling, Condensation and Energy Storage – A Review

Thermal Energy Processes in Direct Steam Generation Solar Systems: Boiling, Condensation and Energy Storage – A Review

A review of the application performances of concentrated solar power systems

Structural analysis of embedded hollow tubes on straight and curved platforms under thermal loads

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