1MW塔式太阳能发电蓄热系统热力计算及分析  

THERMODYNAMIC CALCULATION AND ANALYSIS OF THE HEAT STORAGE SYSTEM FOR 1 MW TOWER-TYPE POWER GENERATION USING SOLAR ENERGY

作　　者：李显[1] 朱天宇[1] 徐小韵[2] 

机构地区：[1]河海大学机电工程系,江苏常州213022 [2]河海大学水利水电工程系,江苏南京210098

出　　处：《热力发电》2009年第11期43-46,52,共5页Thermal Power Generation

基　　金：国家863高新技术项目(2006AA050104-2)

摘　　要：以1 MW塔式太阳能发电蓄热系统为研究对象,通过理论分析,建立了水和水蒸气热力性质、换热器以及高、低温蓄热装置的冷罐和热罐的热力计算模型。借助于MATLAB/SIMULINK仿真平台,计算分析了在光照强度变化下蓄热装置各参数点的变化特性。研究表明,随着太阳能集热器出口热量的减少,蓄热系统维持额定负荷运行的时间不断减少,此结果为蓄热控制系统的设计提供了依据。Taking the heat storage system of a 1 MW tower - type power generation equipment using solar energy as the object of study, through theoritical analysis, a thermodynamic calculation model of the water and vapor characters,the heat exchangers,as well as the hot tartk and cold tank of high and low temperature heat storage systems,has been estabilished. With aid of the MATLAB/SIMULINK emulation plateform, the variation characters of evey parameter point in the heat storage system under variation of light illuminating strength have been calculated and analysed. Result of study shows that the operation time for maintaining the rated load of said heat storage system is continuously reduced along with decreasing the heat quatity from outlet of the heat collector of solar energy, this result provides basis for design of the heat storage control system.

关 键 词：塔式太阳能发电 蓄热系统 换热器 冷 热罐 热力计算 

分 类 号：TM615[电气工程—电力系统及自动化]