Effects of geometric parameters on thermal performance for a cylindrical solar receiver using a 3D numerical model

Zou, Chongzhe; Zhang, Yanping; Feng, Huayi; Falcoz, Quentin; Neveu, Pierre; Gao, Wei; Zhang, Cheng

doi:10.1016/j.enconman.2017.06.088

Cited by 47 publications

(7 citation statements)

References 26 publications

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“…At the same time, the diameter (dap) of the aperture is 200mm by reference to Refs. [15,16] about the aperture size of a similar receiver model. The conical angle (β) and the length (L) of the cavity are varied.…”

Section: Physical Modelmentioning

confidence: 99%

Optical Performance Analysis of Conical Cavity Receiver

Xiao¹,

Zhang²,

Zou³

2019

Proceedings of the 5th World Congress on New Technologies

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In this paper, the commercial software TracePro was used to investigate the effects of some factors on a conical cavity receiver, such as the conical angle, the number of loops of the helical tube, and the distance between the focal point of the collector and the aperture. These factors affect the optical efficiency, the maximum heat flux density, and the light distribution in the conical cavity. The optical performance of the conical receiver was studied and analyzed using the Monte Carlo ray tracing method. The results showed that the amount of light rays reaching the helical tube increases with the increasing of the conical angle, while the optical efficiency decreases and the maximum heat flux density increases.

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Section: Physical Modelmentioning

confidence: 99%

Optical Performance Analysis of Conical Cavity Receiver

Xiao¹,

Zhang²,

Zou³

2019

Proceedings of the 5th World Congress on New Technologies

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“…For instance, Karwa et al [ 14 ] studied receiver shape optimization and proposed a new receiver design for a compound parabolic concentrator. For a given cavity shape, many scholars [ 15 , 16 , 17 , 18 ] have studied the influence of various geometric parameters such as cavity diameter and cavity height on the thermal performance of the receiver. Additionally, the heat transfer ability of the heat transfer fluid (HTF) in heat transfer tubes should match the solar flux distribution as closely as possible.…”

Section: Introductionmentioning

confidence: 99%

Topology Optimization Method of a Cavity Receiver and Built-In Net-Based Flow Channels for a Solar Parabolic Dish Collector

Liu

Chen

et al. 2023

Entropy

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The design of a thermal cavity receiver and the arrangement of the fluid flow layout within it are critical in the construction of solar parabolic dish collectors, involving the prediction of the thermal–fluid physical field of the receiver and optimization design. However, the thermal–fluid analysis coupled with a heat loss model of the receiver is a non-linear and computationally intensive solving process that incurs high computational costs in the optimization procedure. To address this, we implement a net-based thermal–fluid model that incorporates heat loss analysis to describe the receiver’s flow and heat transfer processes, reducing computational costs. The physical field results of the net-based thermal–fluid model are compared with those of the numerical simulation, enabling us to verify the accuracy of the established thermal–fluid model. Additionally, based on the developed thermal–fluid model, a topology optimization method that employs a genetic algorithm (GA) is developed to design the cavity receiver and its built-in net-based flow channels. Using the established optimization method, single-objective and multi-objective optimization experiments are conducted under inhomogeneous heat flux conditions, with objectives including maximizing temperature uniformity and thermal efficiency, as well as minimizing the pressure drop. The results reveal varying topological characteristics for different optimization objectives. In comparison with the reference design (spiral channel) under the same conditions, the multi-objective optimization results exhibit superior comprehensive performance.

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“…Recently, some researchers have begun to study the geometrical influences on cavity receivers. Zou et al [35] demonstrated the thermal performance of the cavity receiver via the effects of geometric factors using a 3D numerical model. Hogan et al [36] determined that convection heat losses for large apertures are exaggerated.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of solar collectors as a potential source for sintering of ZrB2

et al. 2021

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Sintering of ceramics is an energy-consuming process that needs high temperatures, therefore, in the present work; solar energy is used to produce high temperatures for the sintering aim of different materials. Solar energy concentrators increase the intensity of incident energy to the receiver provides high temperatures. Ultrahigh-temperature ceramics (UHTCs) due to their high melting point can also be a good alternative for receiver materials. In the present work, ZrB2 is introduced as an alternative material for solar receivers which can withstand high temperatures of sintering. The governing equations, including heat radiation and conduction ones are solved numerically using the finite element method. Transient heat transfer in the concentrator-collector system is investigated to check the feasibility of high temperatures needs for sintering at the receiver. The highest temperature of 1680 °C was achieved after 15 minutes at the focal point of the concentrator when the solar heat flux of 6.86 w/mm2 used for the location of the city of Ardabil in Iran. The obtained temperature can be used to sintering of some groups of materials.

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Effects of geometric parameters on thermal performance for a cylindrical solar receiver using a 3D numerical model

Cited by 47 publications

References 26 publications

Optical Performance Analysis of Conical Cavity Receiver

Optical Performance Analysis of Conical Cavity Receiver

Topology Optimization Method of a Cavity Receiver and Built-In Net-Based Flow Channels for a Solar Parabolic Dish Collector

Numerical investigation of solar collectors as a potential source for sintering of ZrB2

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