太阳能热气流发电系统仿真与实验研究  

Simulation and experimental study of solar chimney power plant

作　　者：郭永庆 张学林 薛小代 司杨[1] 陈来军 梅生伟 Guo Yongqing;Zhang Xuelin;Xue Xiaodai;Si Yang;Chen Laijun;Mei Shengwei(New Energy Photovoltaic Industry Research Center,Qinghai Key Lab of Efficient Utilization of Clean Energy,Qinghai University,Xining 810016,China;State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment,Tsinghua University,Beijing 100084,China)

机构地区：[1]青海大学新能源光伏产业研究中心青海省清洁能源高效利用重点实验室,青海西宁810016 [2]清华大学电力系统及发电设备控制和仿真国家重点实验室,北京100084

出　　处：《可再生能源》2020年第5期605-611,共7页Renewable Energy Resources

基　　金：青海省应用基础研究项目(2016-ZJ-742);国家自然科学基金创新研究群体资助项目(51621065)。

摘　　要：太阳能热气流发电系统是一种新型的可再生能源发电系统。文章利用COMSOL Multiphysics软件构建了该系统的CFD模型,并对该系统中集热棚和烟囱内的温度和压强,以及烟囱内浮升气流的风速变化情况进行了模拟研究。同时,利用搭建的太阳能热气流实验装置测量了集热棚内气流温度和烟囱内风速,并将实验结果与仿真结果进行对比分析。分析结果表明,集热棚内气流温度和烟囱内风速实测值的变化趋势与仿真结果基本一致,集热棚内气流温度实测值的平均值与仿真值平均值之间的相对偏差为2.9%,烟囱内风速仿真值与实测值之间绝对偏差的平均值以及标准差分别为1.21 m/s,0.4。The solar chimney power plant is a new type of renewable energy power generation technology.In this paper,a CFD numerical model of solar chimney power plant is built by using the software of COMSOL Multiphysics,and the temperature and pressure distribution of airflow in the collector and chimney,as well as the variation of updraft velocity in the chimney are simulated.Meanwhile,the airflow temperature in the collector and updraft velocity in the chimney are measured by using a solar chimney power plant experimental setup and the experimental results were compared with simulation ones.The results show that the measured values of characteristic parameters such as the airflow temperature in the collector and updraft velocity in the chimney are basically consistent with simulation results.Moreover,the relative deviation between the mean value of measured temperature and the mean value of simulated temperature is 2.9%,and the mean value and standard deviation of the absolute deviation between the simulated wind speed in the chimney and its measured value are 1.21 m/s and 0.4 respectively.

关 键 词：太阳能热气流发电 CFD仿真 实验装置 温度场 气流风速 

分 类 号：TK514[动力工程及工程热物理—热能工程] TM615[电气工程—电力系统及自动化]