可再生能源2018，Vol.36Issue(7)：991-996,6.
基于分布参数模型的塔式熔盐吸热器换热过程动态特性研究
Study on dynamic characteristics of heat exchange process of a tower type molten salt receiver based on distributed parameter model
摘要
Abstract
In this paper, a cylindrical heat absorber of a tower power station is taken as the research object. Based on the distribution parameter method, an unsteady heat transfer model of the heat absorber coupled with convection-radiation heat transfer was presented. Base on this model, the dynamic characteristics of the heat absorber under step disturbance such as radiation heat flux density, molten salt flux, inlet temperature of molten salt and ambient wind speed were studied respectively. The results show that there will be different time constants in the dynamic change of the outlet temperature of heat absorber under different parameters step changes. The main boundary conditions affecting the outlet temperature of the absorber are the radiation heat flux, the inlet temperature and the flow rate of the molten salt, while the effect of the instantaneous wind velocity is relatively small.关键词
太阳能/柱式吸热器/分布参数模型/动态建模Key words
solar energy/ external cylindrical receiver/ distribution parameter model/ dynamic modeling分类
能源科技引用本文复制引用
李嘉宝,王沛,赵亮..基于分布参数模型的塔式熔盐吸热器换热过程动态特性研究[J].可再生能源,2018,36(7):991-996,6.基金项目
国家自然科学基金项目(51509076) （51509076）
中国电力科学研究院青年基金项目(NY84-17-003) （NY84-17-003）
国家电网公司总部科技项目"跨洲联网条件下北非地区太阳能资源规模化开发与利用模式研究"(NY71-18-004). （NY71-18-004）
