Conceptual design of a new thermal‐electric conversion device in lightweight concentrating solar thermal power system

Rui, Xi; Zheng, Fei; Zheng, Tao; Xiang, Ji; Tian, Wu

doi:10.1002/ese3.519

Cited by 3 publications

(3 citation statements)

References 41 publications

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“…Compared with the nonthermal storage prototype, the conversion efficiency of parallel and series-parallel heat storage prototypes increases by 10.9% and 7.8%, respectively. Rui et al (2020) [14] designed a new thermoelectric conversion device for concentrating solar thermal power generation systems.…”

Section: Design Optimization Of Electronic Heat Absorption Equipment ...mentioning

confidence: 99%

Simulation Experiment of Heat Transfer Tubes for Electronic Heat Absorber in Thermal Power Generation System of Power Plants

2022

IJOMAM

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The study aims to improve the performance of the thermal power generation system in power plants by analyzing its working principle. The thermal power generation system of large power plants is taken as the research object. The Fluent software is used for simulation experiments. A new optimization method of the rotor structure in the electronic heat absorption equipment and heat exchange pipeline is proposed. By improving the rotor, the heat transfer efficiency of the heat exchange pipeline is greatly improved. Through the relevant research on the thermal power generation system, the rotor's heat transfer performance of the exchange tube is analyzed based on the strong heat transfer convection mechanism. Then the simulation experiment is carried out. Based on the heat transfer mechanism of the combined rotor in the tube path unit, the heat transfer pipe is optimized. The numerical simulation results of rotor heat transfer and fluid flow show that the average resource utilization rate increases with time. The average resource utilization efficiency of the system reaches more than 70% in 45 ms. When the pipe size is 100 mm, the performance of the resistance coefficient is 3.6 before improvement and 2.8 after improvement. When iteration times are 200, the rotor heat transfer of four kinds of pipes reaches the maximum, and the rotor heat transfer of No. 1 pipe with the size of 22 mm can reach 10000W. The research demonstrates the superiority of the proposed heat exchange tube, which provides a theoretical reference for optimizing the heat transfer tube and the efficiency of the thermal power generation system.

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Section: Design Optimization Of Electronic Heat Absorption Equipment ...mentioning

confidence: 99%

Simulation Experiment of Heat Transfer Tubes for Electronic Heat Absorber in Thermal Power Generation System of Power Plants

2022

IJOMAM

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“…The concentrating solar thermal power (CSP) contains a thermal energy storage (TES) system that can be used to produce electrical energy using sunlight radiation ( Figure 19 ) [ 46 , 273 – 277 ]. The CSP technology is low cost and eco-friendly and can generate energy for self-supply.…”

Section: Applications Of Hydrogen Storage Systems and Future Perspmentioning

confidence: 99%

Current Research Trends and Perspectives on Solid-State Nanomaterials in Hydrogen Storage

et al. 2021

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Hydrogen energy, with environment amicable, renewable, efficiency, and cost-effective advantages, is the future mainstream substitution of fossil-based fuel. However, the extremely low volumetric density gives rise to the main challenge in hydrogen storage, and therefore, exploring effective storage techniques is key hurdles that need to be crossed to accomplish the sustainable hydrogen economy. Hydrogen physically or chemically stored into nanomaterials in the solid-state is a desirable prospect for effective large-scale hydrogen storage, which has exhibited great potentials for applications in both reversible onboard storage and regenerable off-board storage applications. Its attractive points include safe, compact, light, reversibility, and efficiently produce sufficient pure hydrogen fuel under the mild condition. This review comprehensively gathers the state-of-art solid-state hydrogen storage technologies using nanostructured materials, involving nanoporous carbon materials, metal-organic frameworks, covalent organic frameworks, porous aromatic frameworks, nanoporous organic polymers, and nanoscale hydrides. It describes significant advances achieved so far, and main barriers need to be surmounted to approach practical applications, as well as offers a perspective for sustainable energy research.

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“…This paper takes the representative Effelsberg antenna as the prototype, under the condition that the other structures except the reflector remain unchanged, and the research is carried out by replacing the umbrella backup structure. Based on the previous experience with a deployable antenna and cable net structure (Rui et al 2020(Rui et al , 2021Zheng et al 2019a,b, 2020, through repeated analysis, comparison, modeling and attempts, we put forward a new reflector structure scheme for large radio telescopes. The system structure of the reflector mainly includes two parts: the back-up structure and the reflecting surface, as illustrated in Figure 1.…”

Section: Design Scheme For Reflectormentioning

confidence: 99%

New design of large fully-steerable radio telescope reflector based on homogenized mesh structure

Yan

Zheng

Rui

2021

Res. Astron. Astrophys.

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The self-weight of a large fully-steerable radio telescope is one of the important factors affecting its performance. In the existing reflector system scheme, the problem of surface accuracy caused by its large and heavy structure has seriously restricted the application and implementation of large radio telescopes. Therefore, a new mesh structure scheme for a large fully-steerable radio telescope reflector is proposed in this paper. This scheme is based on a homogenized mesh back-up structure in the form of a quasi-geodesic grid and regular quasi-tri-prism or tetrahedron, which can significantly reduce the structural complexity and self-weight of the reflector under the condition that the reflector can meet the desired performance requirements. Finally, the feasibility and rationality of the scheme are evaluated by numerical simulation analysis, which has significant advantages and provides a new design for the reflector of a large fully-steerable radio telescope.

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Conceptual design of a new thermal‐electric conversion device in lightweight concentrating solar thermal power system

Cited by 3 publications

References 41 publications

Simulation Experiment of Heat Transfer Tubes for Electronic Heat Absorber in Thermal Power Generation System of Power Plants

Simulation Experiment of Heat Transfer Tubes for Electronic Heat Absorber in Thermal Power Generation System of Power Plants

Current Research Trends and Perspectives on Solid-State Nanomaterials in Hydrogen Storage

New design of large fully-steerable radio telescope reflector based on homogenized mesh structure

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