Proof of principles of a novel dual mirror solar concentrator

采用斯特林发动机的抛物面太阳能聚光器是目前最有效的太阳能转换技术 到电力。然而，当前技术由于其主要跟踪而遭受高安装成本 这些集中器的构造和维护相对昂贵。因此，该系统目前 在经济上不能与使用化石燃料的传统系统竞争。创新太阳能（ISP） Inc.正在开发一种新概念的太阳能集中器，它不需要跟踪沉重的盘子 收集器，并使用固定的地面接收器。这是一个替代战略，以目前广泛的 这种方法需要庞大的系统来跟踪太阳。这一极具优势的提议的成功 系统在于它的简化集中器，这将使它成为一个负担得起的分散式太阳能 能源系统，可能的应用，如发电，海水淡化，生物燃料， 废水处理和加热/制冷系统，同时解决环境问题。 本计画将对一种新型的太阳能聚光器进行实验研究。该实验装置将 由一个冲压的铝盘组成，在其焦点位置装有一个接收器。太阳能发动机 模拟器将用作接收器。分析了接收器和第二镜位置对反射率的影响， 将研究系统的光学性能。热负荷和热膨胀对 将研究聚光器的形状和光学性能。此外，预计风 负载将动态地改变第二反射镜的位置。因此，其光学效率将是 影响。因此，这方面将通过对反射镜位置应用快速动态校正来解决 追踪系统这项技术的成功将导致开发新的产品线， 在发电、生物燃料、混合加热和水处理系统中的应用。

Parabolic Solar Concentrator with Stirling engine is the most efficient solar technology to convert solar energy to electricity. However, the current technology suffers from high installation cost due to its primary tracking concentrators which are relatively expensive to construct and maintain. As a result, this system in its present form cannot compete economically with conventional systems using fossils fuels. Innovative Solar Power (ISP) Inc. is developing a new concept of the solar concentrator, which does not require tracking of the heavy dish collector and uses an immobile floor-level receiver. This is an alternative strategy to the current widespread approach that requires the bulky system to track the sun. The success of this highly advantageous proposed system lies in its simplification of the concentrator which would make it an affordable decentralized solar energy system with possible applications such as in electricity generation, water desalination, bio-fuels, waste-water treatment and heating/refrigeration systems while addressing environmental issues. In this project, a novel type of solar concentrator will be experimentally studied. The experimental device will consist of a stamped aluminum dish equipped with a receiver in its focal position. A heater head Solar Engine Simulator will be used as a receiver. The influence of the receiver and the position of second mirror on the optical performance of the system will be studied. The effect of heat loading and thermal expansion on the shape and optical performance of the concentrator will be investigated. In addition, it is expected that wind load will dynamically change the position of the second mirror. As a result its optical efficiency will be affected. Therefore, this aspect will be addressed by applying fast dynamic correction to the mirror position tracking system. The success of this technology will lead to the development of new line of products with applications in electricity generation, bio-fuels, hybrid heating and water treatment systems.