摘要
为提高太阳能光热转换效率,对同轴非完整型平移抛物面聚光系统进行三维建模,采用蒙特卡洛光线追踪法进行追踪。分别改变接收器和聚光器放置位置,对聚光系统进行优化。通过分析双面受热平板接收器的能量传递及转换过程,建立平板接收器的理论计算模型。对接收器进行热性能计算,分析其热性能的变化规律。研究表明：综合考虑接收器辐射强度均值、辐射热流均匀性、辐射面积等因素的影响,选择将接收器吸热板放置于抛物面轴线远离焦点20～35 mm范围内;环境温度在0～30℃变化时,与单面受热接收器相比,双面受热接收器的热效率提高了8.18%～37.01%。
In order to enhance the photothermal conversion efficiency of a concentrating solar power sys- tem, a three dimensional model for coaxial non-complete type in-parallel moved parabolic concentrating power system. Through analyzing the energy transfer and conversion process of the dual-side heating fiat plate receiver, a theoretical model for calculating the fiat plate receivers was established to calculate the thermal performance of the receivers and analyze the variation law governing the thermal performance of the receivers. It has been found that with the influence of the average value of the irradiance received by the re- ceiver,the uniformity of the radiant heat flux and radiant area being taken way, compared with a single side heating receiver account in a comprehensive when the heat absorption plates of the receiver are placed at a location where the axial line of the parabolic curvature from the focus point and the ambient temperature varies in a the dual-side heating receiver can increase by a percentage surface falls in a range of 20 to 35 mm away range from 0 to 30 ℃, the thermal efficiency of ranging from 8.18% to 37.01%.
作者
张欣宇
杨晓宏
田瑞
ZHANG Xin-yu;YANG Xiao-hong;TIAN Rui(Education Ministry Key Laboratory on Wind Power and Solar Power Utilization Technology, Inner Mongolia University of Technology, Hohhot, China, Post Code ： 010051;College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot, China, Post Code ： O10051;Key Laboratory on Renewable Energy Sources, Inner Mongolia University of Technology, Hohhot, China, Post Code ： 010051)
出处
《热能动力工程》
CAS
CSCD
北大核心
2018年第4期115-123,共9页
Journal of Engineering for Thermal Energy and Power
基金
风能太阳能利用技术教育部重点实验室(内蒙古工业大学)开放基金(201508)
国家自然科学基金(51266007)
内蒙古工业大学科学研究项目(X201313)~~
关键词
太阳能
聚光系统
双面受热平板接收器
热效率
solar energy, concentrating solar power system, dual-side heating flat plate receiver,thermal efficiency
