Thermal stress in bimetallic receiver of solar parabolic trough concentrator induced due to non uniform temperature and solar flux distribution

Khanna, Sourav; Sharma, Vashi; Newar, Sanjeev; Mallick, Tapas K.; Panigrahi, Pradipta Kumar

doi:10.1016/j.solener.2018.09.081

Cited by 14 publications

(4 citation statements)

References 49 publications

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“…However, when combined with a hydrogen purification unit, it can effectively increase hydrogen production. 31…”

Section: Inlet Velocitymentioning

confidence: 99%

Characteristic Investigation on the Methanol Steam Reforming Microchannel Reactor with the Novel Catalytic Combustion Self-Heating Structure for Hydrogen Production

Ma,

Li,

Bao

et al. 2024

Ind. Eng. Chem. Res.

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Methanol steam reforming hydrogen production provides a solution for the portable development of hydrogen–oxygen fuel cells with the working mode of “on-site hydrogen production and ready-to-use”. In this paper, the catalytic combustion chamber is redesigned, and the autothermal nozzle microchannel reactor (ANMR) system is proposed for efficient methanol steam reforming hydrogen produced. The performance superiority of ANMR is demonstrated by comparison with traditional reactors, and the optimization scheme of the reactor structure is studied. The results show that ANMR improves the overall reforming performance by improving the temperature performance. Compared to the conventional reactor, the ANMR optimizes the reactor structure and operating conditions, which results in the catalyst of the combustion chamber being reduced by 40%, the hydrogen production being increased by 40.34 L/h, and the methanol conversion rate being increased by 22.49%. Consequently, the design theory and control method of the velocity field, concentration field, and temperature field coupling system are developed, which is of great significance for the portability of hydrogen production.

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“…However, when combined with a hydrogen purification unit, it can effectively increase hydrogen production. 31…”

Section: Inlet Velocitymentioning

confidence: 99%

Characteristic Investigation on the Methanol Steam Reforming Microchannel Reactor with the Novel Catalytic Combustion Self-Heating Structure for Hydrogen Production

Ma,

Li,

Bao

et al. 2024

Ind. Eng. Chem. Res.

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“…The axial stress is the dominant stress component in solar receiver tubes, where generalized plane strain state can be assumed [41]. In the experiments conducted in this work, because the tube is fixed at two ends, the term related to the cancelling of the bending moment in generalized plain strain must be replaced by the curvature of the tube (see Apendix A) [42].…”

Section: Deflection Of the Pipe And Thermal Stressmentioning

confidence: 99%

Experimental and numerical study of the heat transfer process during the startup of molten salt tower receivers

Fernández-Torrijos

Sobrino

Marugán-Cruz

et al. 2020

Applied Thermal Engineering

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“…Von-Mises stresses were significantly reduced as a result of the eccentricity of the bayonet tube. In the thermal stress analysis of bimetallic receivers, the double-layer absorber tube [22] created less stress than the single-layer absorber tube. Thermal and mechanical effects [23] were investigated in the absorber tube of the parabolic trough solar collector (PTSC) made of steel, copper, aluminum, Cu-Fe and four-layer laminate (Cu-Al-SiC-Fe).…”

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 in bimetallic receiver of solar parabolic trough concentrator induced due to non uniform temperature and solar flux distribution

Cited by 14 publications

References 49 publications

Characteristic Investigation on the Methanol Steam Reforming Microchannel Reactor with the Novel Catalytic Combustion Self-Heating Structure for Hydrogen Production

Characteristic Investigation on the Methanol Steam Reforming Microchannel Reactor with the Novel Catalytic Combustion Self-Heating Structure for Hydrogen Production

Experimental and numerical study of the heat transfer process during the startup of molten salt tower receivers

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

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