关于增强太阳能空气加热器粗化管道传热的研究

Gyaneshwar, Shikha Bhatt
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引用次数: 0

摘要

太阳能空气加热器是将太阳能转化为热能过程中最重要的工具之一。由于成本低、安装简单,太阳能空气加热器已迅速成为最流行、最广泛使用的太阳能收集方法之一。吸收板和空气之间的对流传热系数值较低,这大大降低了太阳能空气加热器的热效率。这是因为太阳能空气加热器中使用了吸收板。因此,吸收板会升温,向周围空间释放大量热能。本文介绍了一项利用计算流体动力学研究太阳能空气加热器中热量如何传递的结果。该项目的工作由作者完成(CFD)。研究人员目前正在调查 Re 对 Nu 的影响。ANSYS FLUENT 20 这一商用软件可用于分析太阳能空气加热器管道中的流动并使其可视化。该软件属于有限体积软件。使用该软件有助于完成工作。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An Investigation into The Enhancement of Heat Transfer in Roughened Ducts of Solar Air Heaters
One of the most crucial tools for the process of transforming solar energy into thermal energy is a solar air heater. Thanks to its low cost and ease of installation, solar air heaters have quickly become one of the most popular and widely used methods of harvesting solar energy. Low convective heat transfer coefficient values between the absorber plate and the air significantly reduce the solar air heater's thermal efficiency. This is because absorber plates are used in solar air heaters. As a consequence, the absorber plate heats up, releasing a great deal of thermal energy into the surrounding space. This article presents the findings of a study that used computational fluid dynamics to investigate how heat is transferred in a solar air heater. The work for this project was done by the author (CFD). Researchers are now investigating the impact of the Re on the Nu. Commercial software known as ANSYS FLUENT 20 may be used to analyse and visualise the flow that happens across the duct of a solar air heater. This programme falls under the category of finite volume software. Using the programme helps get the job done.
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