跨季节储热供热系统中聚光吸热器的动态仿真研究  

DYNAMIC SIMULATION OF SOLAR RECEIVER FOR SOLAR HEATING SYSTEM WITH SEASONAL HEAT STORAGE

作　　者：李晓霞 王志峰[1,2,3] 李金平 杨铭[2,3] 陈龙飞[2,3] 赵静 Li Xiaoxia;Wang Zhifeng;Li Jinping;Yang Ming;Chen Longfei;Zhao Jing(School of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Key Laboratory of Solar Thermal Energy and Photovoltaic System,Chinese Academy of Sciences,Beijing 100190,China;Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China;Urumqi Sikorsk Energy Contract Management Professional Technical Service Co.,Ltd.,Urumqi 830011,China)

机构地区：[1]兰州理工大学能源与动力工程学院,兰州730050 [2]中国科学院太阳能热利用与光伏系统重点实验室,北京100190 [3]中国科学院电工研究所,北京100190 [4]乌鲁木齐西科斯克能源合同管理专业技术服务有限公司,乌鲁木齐830011

出　　处：《太阳能学报》2021年第12期54-58,共5页Acta Energiae Solaris Sinica

基　　金：中国科学院先导A项目(XDA21050200)。

摘　　要：基于实际跨季节储热供热系统中的塔式聚光吸热子系统,建立非均匀能流密度下聚光吸热器的一维非稳态仿真模型,对模型进行全天动态实验验证;并理论分析多种集热方式在不同运行温度及太阳辐照下的集热性能。结果表明,全天非稳态运行中吸热器出口温度实验值与模拟值吻合较好,最大误差不超过5%;随入口流体温度增加,塔式聚光吸热系统热性能下降较小,且入口温度高于60℃以上时,塔式聚光吸热系统热性能优于平板及真空管集热器。研究可为聚光吸热系统推广应用于中低温领域提供重要理论基础及实验参考。Based on the real solar heating system with seasonal heat storage,a one-dimensional transient model of the solar receiver with non-uniform heat flux distribution was developed. The model is dynamically validated by the experimental data. Results show that the experimental value of the outlet temperature of the receiver was in good agreement with the simulation results,The maximum deviation is not more than 5%. The thermal performance of the tower system decreases slightly with the increase of the inlet fluid temperature,when the inlet temperature is higher than 60 ℃,the thermal performance of the tower system is better than that of the flat plate and vacuum tube collectors. This research provides an important theoretical basis and experimental reference for the application of the concentrating system in the field of medium and low temperature.

关 键 词：太阳能聚光器 吸热器 仿真建模 太阳能供热 跨季节储热 

分 类 号：TK51[动力工程及工程热物理—热能工程]