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Development of soiling-process characterization methods for solar mirrors, for analysing mirror-cleaning-processes

开发太阳镜污染过程表征方法，用于分析镜面清洁过程

基本信息

批准号：
2212085
负责人：
金额：
--
依托单位：
CRANFIELD UNIVERSITY
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2019
资助国家：
英国
起止时间：
2019 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2212085
关键词：
Development soiling process characterization methods

项目摘要

The focus of this EngD project is to understand the utilisation of plasma-assisted surface conditioning of low-iron glass solar reflecting mirrors for concentrating solar thermal power applications. The Global Concentrating Solar Power (CSP) market was valued at over $3 Billion US in 2016 and is anticipated to grow by 13% by 2025. CSP plants generate electricity by concentrating sun light with large arrays of mirrors which are usually located in desert regions. Consequently, the mirrors get covered in sand and dust, and require cleaning with brushes and water on a regular basis. Currently much water is used to clean the mirrors, a precious resource in arid terrains. The aim of this project is to investigate the characteristics of a novel atmospheric pressure plasma system used to condition CSP concentrating mirrors which will be capable of reducing the amount of water used in the cleaning process. There is also a compelling business desire to undertake this project. The development of a novel atmospheric pressure plasma system will be a significant game changer in the CSP market. Such a disruptive technology is anticipated to yield significant commercial benefits.The project will include the following stages within the overall research methodology:1) Modeling and simulation of the deposition of sand and dust onto mirror surfaces at a variety of different geographical locations2) Experimental analysis of sand and dust saltation, erosion, abrasion, and suspension in arid regions within the solar belt (typically within the tropical latitudes).3) Characterisation of mirror surfaces by interferometry, scanning electron microscopy with energy dispersive x-ray analysis for elemental compositional identification, photogrammetry for shape distortion, reflectometry for specular reflectance, and contact angle measurements to determine surface condition.

这个工程项目的重点是了解等离子体辅助低铁玻璃太阳反射镜的表面调理在聚光太阳能热发电应用中的应用。2016年全球聚光太阳能（CSP）市场价值超过30亿美元，预计到2025年将增长13%。聚光太阳能发电厂通常利用位于沙漠地区的大型反射镜阵列集中太阳光发电。因此，镜子会被沙子和灰尘覆盖，需要定期用刷子和水清洗。目前，大量的水被用于清洁镜子，这是干旱地区的宝贵资源。该项目的目的是研究一种用于调节CSP聚光镜的新型大气压等离子体系统的特性，该系统将能够减少清洁过程中使用的水量。也有一个令人信服的商业愿望承担这个项目。一种新型大气压等离子体系统的开发将是CSP市场的重要游戏规则改变者。这种颠覆性的技术有望产生巨大的商业效益。在整个研究方法中，该项目将包括以下几个阶段：1)模拟和模拟各种不同地理位置的沙尘在镜面上的沉积；2)对太阳带内干旱地区（通常在热带纬度地区）的沙尘跳跃、侵蚀、磨损和悬浮进行实验分析。3)用干涉测量法表征镜面，用能量色散x射线扫描电子显微镜进行元素成分鉴定，用摄影测量法进行形状畸变，用反射测量法进行镜面反射，用接触角测量法确定镜面状况。