槽式太阳能有机朗肯循环发电系统的模拟研究  

Simulation Research on Trough Solar Organic Rankine Cycle Power Generation System

作　　者：安玉磊[1] 陈九法[1] 章智博 An Yulei Chen Jiufa Zhang Zhibo(School of Energy and Environment, Southeast University, Nanjing 210096, China Zhejiang Prov. Institute of Architectural Design and Research, Hangzhou 310006, China)

机构地区：[1]东南大学能源与环境学院,南京210096 [2]浙江省建筑设计研究院,杭州310006

出　　处：《发电设备》2017年第2期92-98,共7页Power Equipment

摘　　要：把槽式太阳能集热器与有机朗肯循环系统相结合,模拟槽式太阳能集热器的相关参数对发电系统的影响。建立了槽式太阳能有机朗肯循环系统的数学模型和系统各部件的计算模型,采用VB软件对循环系统整体进行模拟。分析了系统整体效率和膨胀机输出功受太阳直射辐射强度、导热流体入口流体温升和入口速度的影响。模拟发现,当集热器入口和出口温度固定时,系统存在最佳流速,最佳流速与太阳直射辐射强度和入口温度都有关。By combining the trough solar collector with an organic Rankine cycle （ORC） system, the influence of collector parameters on the power generation system was simulated. A mathematical model for the trough solar ORC system and calculation models for various parts of the system were established to simulate the whole circulation system using VB software. The effects of direct solar radiation intensity, the inlet temperature rise and the inlet flow rate of heat transfer fluid on both the overall efficiency of system and the output power of expander were analyzed. Simulation results show that when the inlet and outlet temperature of collector are fixed, the system would have an optimal flow rate relating to both the direct solar radiation intensity and the inlet temperature.

关 键 词：槽式太阳能发电 有机朗肯循环 数值模拟 

分 类 号：TK513.3[动力工程及工程热物理—热能工程]