Deformation of receiver in solar parabolic trough collector due to non uniform temperature and solar flux distribution and use of bimetallic absorber tube with multiple supports

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

doi:10.1016/j.energy.2018.09.145

Cited by 24 publications

(3 citation statements)

References 50 publications

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“…As shown in Figure b, the optimal thermal conductivity for ANMR is approximately 80 W/(m·K), although the carbon dioxide selectivity is lower. However, when combined with a hydrogen purification unit, it can effectively increase hydrogen production …”

Section: Results and Discussionmentioning

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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Section: Results and Discussionmentioning

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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“…Structural improvement of the receiver tube has been also considered, with the adoption of advanced materials, besides increasing the wall thickness. A compound copper‐steel tube has been studied for improving the temperature distribution within the framework of a DSG plant (Almanza et al, 1998; Flores & Almanza, 2004; Khanna et al, 2018). Alternative materials with superior mechanical properties (nickel superalloy or copper) have also been considered (Fuqiang et al, 2017).…”

Section: Challengesmentioning

confidence: 99%

Direct gas heating in linear concentrating solar collectors for power and industrial process heat production: Applications and challenges

Lecuona

Famiglietti

2023

WIREs Energy & Environment

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Parabolic trough collectors and linear Fresnel collectors are mature technologies for power production, and they are being recently applied to provide solar heat for industrial needs. Conventionally, they use a liquid as heat transfer fluid, either thermal oil or water, to carry heat from the receivers up to the point of conversion or delivery. Although liquids offer excellent thermal properties, they show technical limitations, besides environmental concerns, which have encouraged the research on alternative solutions. This work reviews the main research works on the use of gases as heat transfer fluid in linear concentrating collectors, including solar power and heat production, highlighting the potential applications and technical challenges. The review indicates: first, gases offer potential to replace liquids, and second, there is a need for more research and development to define the best technical compromises to reach practical application in every sector. This article is categorized under: Sustainable Energy > Solar Energy Energy and Power Systems > Energy Infrastructure

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“…The concentrated solar power (CSP) system that focuses solar radiation energy onto the receiver can reduce the requirement of collector materials and provide lower heat losses due to the reduced target area [12][13][14]. The parabolic trough collector (PTC), as a CSP technology that has been extremely developed, has already had relatively abundant operational experience, and currently has great prospects [15,16]. Due to the characteristics of wide distribution and low energy flow density of solar energy, centralized solar power plants generally occupy a large area.…”

Section: Introductionmentioning

confidence: 99%

Analysis of heat transfer performance of the absorber tube with convergent-divergent structure for parabolic trough collector

XUYI

Wang

XUHANG

et al. 2021

Journal of Thermal Engineering

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In order to effectually improve the performance of parabolic trough solar collector system and homogenize the temperature distribution on the absorber tube, an innovative convergentdivergent tube was designed as the absorber tube of PTR. The finite volume method (FVM) and the Monte Carlo ray tracing method (MCRT) are combined to simulate the heat transfer process in parabolic trough collector. The average relative error between the numerical results and the experimental results conducted in the Spanish DISS test facility is 1.103%, which confirms the reliability of the simulation results in this paper. The heat transfer characteristics and flow characteristics of PTR and convergent-divergent PTR are compared in the inlet velocity range of 0.05-0.75m/s, and the effect of the number of zoom sections(N) for CD-PTR performance is also studied. The simulation results show that the parabolic trough collector with convergent-divergent tube has significantly enhanced heat transfer capability. The average Nu of CD-PTR increases as the number of zoom sections increases, and is always higher than that of PTR. When Re=86400 and N=25, the average Nu increased by 66%.

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Deformation of receiver in solar parabolic trough collector due to non uniform temperature and solar flux distribution and use of bimetallic absorber tube with multiple supports

Cited by 24 publications

References 50 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

Direct gas heating in linear concentrating solar collectors for power and industrial process heat production: Applications and challenges

Analysis of heat transfer performance of the absorber tube with convergent-divergent structure for parabolic trough collector

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