环境温度变化对不同尺寸粮仓内部传热影响的研究

Q4 Physics and Astronomy
André Rickes, G. J. Weymar, I. C. Furtado, P. De Toni
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引用次数: 0

摘要

以下工作旨在提出一个二维瞬态储箱传热模型的数值解,该模型假设储箱结构暴露在环境温度下,这取决于时间。根据这一假设,使用2021年Pelotas/RS市的气象数据对这些数量之间的关系进行了曲线拟合,并分析了垃圾箱的外部温度对结构内部传热过程的影响。在对位于巴西南部城市的虚拟料仓内的传热进行模拟后,结果表明,边界条件会导致谷物温度的显著变化,在靠近料仓表面的点上变化更大。此外,得出的结论是,与容纳较大尺寸的垃圾箱的行为相比,在分析期间,储存量最小的容器内部温度变化较大。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study of the Influence of Variable Ambient Temperature on Heat Transfer Inside Different Sized Grain Storage Bins
The following work aims to present the numerical solution for a two-dimensional and transient model for heat transfer on storage bins during the period of one year, in which it was supposed that the structure is exposed to ambient temperature, which depends on time. From this hypothesis, it was executed curve fitting of a relation between those quantities, using meteorological data from the city of Pelotas/RS in the year 2021, and the influence that the outside temperature of a bin has over the process of heat transfer that occurs inside the structure was analyzed. Upon executing simulations of heat transfer inside fictitious bins located in this southern Brazilian city, results show that the boundary condition causes considerable variations in grain temperature, which are more intense in points near the bin's surface. Furthermore, it was concluded that containers of least storage show larger variations in inner temperature during the analyzed period when compared to the behavior of bins containing larger sizes.
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来源期刊
Defect and Diffusion Forum
Defect and Diffusion Forum Physics and Astronomy-Radiation
CiteScore
1.20
自引率
0.00%
发文量
127
期刊介绍: Defect and Diffusion Forum (formerly Part A of ''''Diffusion and Defect Data'''') is designed for publication of up-to-date scientific research and applied aspects in the area of formation and dissemination of defects in solid materials, including the phenomena of diffusion. In addition to the traditional topic of mass diffusion, the journal is open to papers from the area of heat transfer in solids, liquids and gases, materials and substances. All papers are peer-reviewed and edited. Members of Editorial Boards and Associate Editors are invited to submit papers for publication in “Defect and Diffusion Forum” . Authors retain the right to publish an extended and significantly updated version in another periodical.
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