Numerical simulation of convective heat transfer between air flow and ceramic foams to optimise volumetric solar air receiver performances

Zhiyong Wu; Cyril Caliot; Gilles Flamant; Zhifeng Wang

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Numerical simulation of convective heat transfer between air flow and ceramic foams to optimise volumetric solar air receiver performances

机译：气流与陶瓷泡沫对流换热的数值模拟，以优化太阳能空气接收器的性能

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Porous ceramic foams are used to achieve high performance in solar heat recovery systems. Understanding the convective heat transfer between the air flow and the ceramic foam is of great importance when optimising the volumetric air receiver. In this work, the convective heat transfer was numerically studied. The present approach was designed to compute the local convective heat transfer coefficient between the air flow and a porous ceramic foam. For that purpose, the energy balance and the flow inside the porous ceramic foam were solved. In addition, a detailed geometry of the porous ceramic foam was considered. The ceramic foams were represented by idealised packed tetrakaidecahedron structures. The numerical simulations were based on the three dimensional Reynolds-averaged Navier-Stokes (RANS) equations. A sensitivity study on the heat transfer coefficient was conducted with the porosity, velocity and mean cell size as parameters. Based on the numerical simulation results, a correlation for the volumetric local convective heat transfer coefficient between air and ceramic foams was developed. The resulting correlation covers a wide range of porosities, velocities, cell sizes and temperatures. The correlation results were compared with experimental data from the literature, and the comparison shows good agreement. The correlation is intended to be used in the design of volumetric solar air receivers.

机译：多孔陶瓷泡沫用于在太阳能热回收系统中实现高性能。在优化容积式空气接收器时，了解气流与陶瓷泡沫之间的对流传热非常重要。在这项工作中，对流传热进行了数值研究。设计本方法来计算气流与多孔陶瓷泡沫之间的局部对流传热系数。为此，解决了能量平衡和多孔陶瓷泡沫内部的流动。另外，考虑了多孔陶瓷泡沫的详细几何形状。陶瓷泡沫的特征是理想化的填充的十四烷基结构。数值模拟基于三维雷诺平均Navier-Stokes（RANS）方程。以孔隙度，速度和平均泡孔尺寸为参数，对传热系数进行了敏感性研究。基于数值模拟结果，建立了空气和陶瓷泡沫之间的体积局部对流传热系数的相关性。所得的相关性涵盖了广泛的孔隙度，速度，晶胞大小和温度。将相关结果与文献中的实验数据进行了比较，比较结果显示出良好的一致性。该相关性旨在用于容积式太阳能空气接收器的设计中。

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来源
《International Journal of Heat and Mass Transfer》 |2011年第8期|p.1527-1537|共11页
作者
Zhiyong Wu; Cyril Caliot; Gilles Flamant; Zhifeng Wang;
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作者单位

The Key Laboratory of Solar Thermal Energy and Photovoltaic System, IEE-CAS, Beijing 100190, China Processes, Materials, and Solar Energy Laboratory, PROMES CNRS, 7 Rue du Four Solaire, 66120 Font-Romeu, France;

Processes, Materials, and Solar Energy Laboratory, PROMES CNRS, 7 Rue du Four Solaire, 66120 Font-Romeu, France;

Processes, Materials, and Solar Energy Laboratory, PROMES CNRS, 7 Rue du Four Solaire, 66120 Font-Romeu, France;

The Key Laboratory of Solar Thermal Energy and Photovoltaic System, IEE-CAS, Beijing 100190, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
porous media; tetrakaidecahedral model; local volumetric heat transfer coefficient; nusselt number correlation; volumetric solar air receiver; computational fluid dynamics;

机译：多孔介质四面体模型局部体积传热系数努塞尔数相关体积太阳空气接收器计算流体动力学;

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专利

1. Coupled radiation and flow modeling in ceramic foam volumetric solar air receivers [J] . Zhiyong Wu, Cyril Caliot, Gilles Flamant, Solar Energy . 2011,第9期

机译：陶瓷泡沫体积太阳能空气接收器中的辐射与流耦合耦合
2. Coupled Radiation And Flow Modeling In Ceramic Foam Volumetric Solar Air Receivers [J] . K.K. Chong, M.H. Tan Solar Energy . 2011,第9期

机译：陶瓷泡沫体太阳能空气接收器的辐射与流耦合耦合
3. A numerical simulation of the convective heat transfer in confined channel flow past square cylinders : comparison of inline and offset tandem pairs [J] . J.L. Rosales, A. Ortega, J.A.C. Humphrey International Journal of Heat and Mass Transfer . 2001,第3期

机译：密闭通道流经方形圆柱体的对流传热的数值模拟：串联和偏置串联对的比较
4. Turbulent Heat Transfer Analysis of Silicon Carbide Ceramic Foam as a Solar Volumetric Receiver [C] . C. Yang, Y. Sano, S. Iwase, International Conference on Porous Media and Its Applications in Science, Engineering, and Industry . 2012

机译：碳化硅陶瓷泡沫的湍流传热分析为太阳能容积接收器
5. VOLUMETRIC RECEIVER DEVELOPMENT - A HEAT TRANSFER AND DESIGN EVALUATION OF AN ADVANCED AIR HEATING SOLAR THERMAL CENTRAL RECEIVER CONCEPT (ENERGY, NUMERICAL ANALYSIS, FLUID DYNAMICS, SIMULATIONS, MONTE CARLO). [D] . DROST, MONTE KEVIN. 1985

机译：容积式接收器的开发-先进的空气加热太阳能中央接收器概念（能量，数值分析，流体动力学，模拟，蒙特卡洛）的传热和设计评估。
6. Numerical Study Using Microstructure Based Finite Element Modeling of the Onset of Convective Heat Transfer in Closed-Cell Polymeric Foam [O] . Jorge-Enrique Rivera-Salinas, Karla-Monzerratt Gregorio-Jáuregui, Heidi-Andrea Fonseca-Florido, 2021

机译：基于微观结构的有限元模拟闭合细胞聚合物泡沫的对流传热发作的数值研究
7. Discussion: “Force Convection Heat Transfer at an Inclined and Yawed Square Plate—Application to Solar Collectors” (Sparrow, E. M., and Tien, K. K., 1977, ASME J. Heat Transfer, 99, pp. 507–512) and “Local Heat Transfer and Fluid Flow Characteristics for Airflow Oblique or Normal to Square Plate” (Tien, K. K., and Sparrow, E. M., 1979, Internation Journal of Heat and Mass Transfer, 22, pp. 349–359) and “Effect of Finite Width on Heat Transfer and Fluid Flow about an Inclined Rectangular Plate” (Sparrow, E. M., Ramsey, J. W., and Mass, E. A., 1979, ASME J. Heat Transfer, 101, pp. 199–204) [O] . B. Nimmo, S. Zubair 1981

机译：讨论：“在倾斜和偏航的方形板应用于太阳能收集器的强制对流传热”（Sparrow，EM和Tien，KK，1977，Asme J.传热，99，PP。507-512）和“局部热量用于气流倾斜或正常板的转移和流体流动特性“（Tien，KK和Sparrow，EM，1979，热量和传质杂志，22，pp.349-359）和”有限宽度对热量的影响关于倾斜矩形板的转移和流体流动“（Sparrow，EM，Ramsey，JW和Mass，EA，1979，ASME J.传热，101，PP。199-204）
8. Effects of Secondary Flows on the Convective Heat Transfer from a Heated Block inan Airstream [R] . LeClaire, S. E. 1997

机译：二次流对气流加热块对流换热的影响

Numerical simulation of convective heat transfer between air flow and ceramic foams to optimise volumetric solar air receiver performances

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