An exploration of the application to buildings of an organic Rankine cycle power generation system driven by solar evacuated glass tubes

IF 2.1 4区工程技术 Q3 ENERGY & FUELS

Journal of Solar Energy Engineering-transactions of The Asme Pub Date : 2022-06-30 DOI:10.1115/1.4054920

Ying Sheng, W. Han, Zhang He

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引用次数: 0

Abstract

Solar technologies are an efficient means of addressing environmental pollution and climate change challenges. In this study, an organic Rankine cycle (ORC) system driven by solar evacuated glass tubes named solar water power generation system (SWPG) was experimentally investigated to explore the performance of the SWPG system in powering buildings. For ORC, a new mixture called TD-3 was introduced for the experiment after comparing the thermodynamic characteristics of five working fluids using REFPROP software. The solar radiation intensity was simulated for solar collectors to determine the best installation angle of the evacuated glass tubes to be 30° in Tianjin, China. The power generating efficiency was tested as high as 4.5% at 1:00 pm on July 15. The optimization of operating parameters and the modification of generating equipment contributed to the increase in power generation. The SWPG system could achieve an optimal power output when the system guaranteed a small superheat and no more than 3°C subcooling using the TD-3. The transmission ratio between the generator and expander also impacted power generation that the ratio of 2:1 helped optimize the power generation.

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太阳能真空玻璃管驱动有机朗肯循环发电系统在建筑中的应用探索

太阳能技术是应对环境污染和气候变化挑战的有效手段。在本研究中，对一个由太阳能抽真空玻璃管驱动的有机朗肯循环（ORC）系统——太阳能水发电系统（SWPG）进行了实验研究，以探索SWPG系统在为建筑物供电方面的性能。对于ORC，在使用REFPROP软件比较了五种工作流体的热力学特性后，引入了一种名为TD-3的新型混合物进行实验。对天津地区太阳能集热器的太阳辐射强度进行了模拟，确定了抽真空玻璃管的最佳安装角度为30°。7月15日下午1点，发电效率测试高达4.5%。运行参数的优化和发电设备的改造有助于发电量的增加。当系统使用TD-3保证过热度小且过冷度不超过3°C时，SWPG系统可以实现最佳功率输出。发电机和膨胀机之间的传动比也影响发电，2:1的传动比有助于优化发电。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Solar Energy Engineering-transactions of The Asme 工程技术-工程：机械

CiteScore

5.00

自引率

26.10%

发文量

审稿时长

6.0 months

期刊介绍： The Journal of Solar Energy Engineering - Including Wind Energy and Building Energy Conservation - publishes research papers that contain original work of permanent interest in all areas of solar energy and energy conservation, as well as discussions of policy and regulatory issues that affect renewable energy technologies and their implementation. Papers that do not include original work, but nonetheless present quality analysis or incremental improvements to past work may be published as Technical Briefs. Review papers are accepted but should be discussed with the Editor prior to submission. The Journal also publishes a section called Solar Scenery that features photographs or graphical displays of significant new installations or research facilities.