基于Ebsilon的槽式光热发电回热循环性能分析

Performance Analysis of Regeneration Cycle of Trough CSP Based on Ebsilon

中文关键词: 回热循环  槽式太阳能热发电  热功转换  有机工质  模拟计算  运行特性

英文关键词: regenerative cycle  trough solar thermal power generation  thermal power conversion  organic working fluid  simulation calculation  operating characteristics

中文摘要:

      在热力发电过程中，存在发电功率低、发电成本高以及工业余热直接被释放到外界。为了优化热力发电系统，采用回热循环、选取最佳回热系数提高系统的整体效率。依据工程热力学的第一、二定律等数学理论建立数学模型。通过Ebsilon软件平台建立了一个典型的槽式太阳能光热发电回热系统仿真模型，通过设定特定的参数进行模拟。结果表明：随着回热系数的增加，发电量逐步增大；储热系统良好的调节作用是发电量稳定、安全、具有持续性，夜晚期间发电量稳定在1600.43 W左右、系统的光热转换效率在12.77%左右。该仿真研究为工业应用提供相应的依据，有利于促进槽式太阳能热发电回热循环系统的研究及工程化应用。

英文摘要:

      In the thermal power generation process, there are low power generation, high power generation cost and industrial waste heat is directly released to the outside world. In order to optimize the thermal power generation system, recycling cycle and optimal recycling coefficient are adopted to improve the overall efficiency of the system. A mathematical model is established according to the first and second laws of engineering thermodynamics and other mathematical theories. Ebsilon software platform is used to establish a typical simulation model of the solar photovoltaic power generation and recycling system. Specific parameters are set for simulation. The results show that the generating capacity increases with the increase of the recycling coefficient. A good regulating effect of the heat storage system is stable, safe and sustainable electricity generation, which is stable at about 1600.43 W during the night, and the trough solar thermal conversion efficiency of the system is about 12.77%. The simulation study provide the corresponding basis for industrial application, which is helpful to promote the research and engineering application of trough solar thermal power generation recycling system.