塔式光热电站集热场设计综述及经济性研究

Review and Economic Research on Solar Field Design of Solar Tower Plants

[目的]为系统性梳理塔式光热电站集热场设计的内容,评估集热场设计对电站经济性的影响,对集热场设计进行综述介绍,提出了塔式光热电站集热场设计的基本思路,分析了影响集热场效率的因素并进行经济性研究。[方法]将集热场设计分为吸热塔位置和高度设计、定日镜布置设计及集热场道路设计这三部分内容分别介绍,采用对集热场效率的构成子效率进行分解的方法,并以影响集热场经济性的主要两个设计因素为重点开展研究。[结果]提炼了集热场设计需考虑的多种因素,总结列出提升集热场子效率的各因素设计结论,提出在目前工程条件下集热场规模越大光热电站经济性越好,得到定日镜布局疏密对经济性的影响结论。[结论]所提出的结论指导意义强,为塔式光热电站设计提供借鉴。

[Introduction]The paper aims to sort out the contents of the design of solar field of the solar tower plant systematically and to evaluate the impact of solar field design on the economy of the plant.The solar field design is summarized and introduced.The factors affecting solar field efficiency is analyzed and the economic research is conducted.[Method]The design of the collector field was divided into three parts:design of the position and height of the receiver,design of the heliostat layout and design of the road in solar field.The method of decomposing the sub efficiencies of solar field efficiency was adopted and the research was focused on the two main design factors that affect the economy of the solar field.[Result]In this paper,several factors that need to be considered in the design of solar field are summarized and the design conclusions of various factors to improve the efficiency of solar field are listed.Under the current engineering conditions,the larger solar field results in a better the economy of the plant.The influence of the density of the heliostat layout on the economy is obtained.[Conclusion]The conclusions are of great guiding significance and can be used for reference in the design of solar tower plant.