倪永良 1董旭 2刘华明 3李建山 4倪平 5王叔范6
作者信息
- 1. 扬州大学扬州碳中和技术创新研究中心,江苏 扬州 225127||江苏攀登能源科技有限公司,江苏 无锡 214400||江苏省化工设备制造安装有限公司,江苏 常州 213000
- 2. 扬州大学扬州碳中和技术创新研究中心,江苏 扬州 225127
- 3. 江苏攀登能源科技有限公司,江苏 无锡 214400
- 4. 江苏华东炉业有限公司,江苏 镇江 212300
- 5. 张家港市兆丰昌盛金属制品厂,江苏 苏州 215600
- 6. 江苏省化工设备制造安装有限公司,江苏 常州 213000
- 折叠
摘要
Abstract
High-temperature thermal energy storage is a large-scale energy storage method capable of implementing peak shaving and valley filling for the power grid,its stored thermal energy grade is high,and the conversion efficiency of thermal engine(i.e.Carnot cycle efficiency)is high.The thermophysical properties of multicomponent halogenated salt as high temperature thermal energy storage material and its compatibility with carbon steel at high temperature were studied,the technical problems of molten salt packaging method,energy storage and heating method,discharge structure design of energy storage system and other technical problems that need to be solved when multicomponent halogenated salts is used for high temperature phase change thermal energy storage are pointed out,specific solutions are proposed for each problem,the most critical is to put forward the technical scheme of dispersedly filling molten salt with molten salt box to form molten salt pile,solved the packaging problem for engineering applications of molten salts with temperatures up to 750℃or 800℃and alternating solid-liquid states.Based on the research contents,a test scheme for engineering application of high temperature phase change thermal energy storage technology of multicomponent halide salt is conceived,a set of test device is built according to the test scheme,and then conduct the test of heating by powering on storing heat and introduce water to generate steam to release heat,the experimental results indicate that,the multicomponent halide salts phase change thermal energy storage meets the performance requirements of high-temperature thermal energy storage,high energy storage temperature and high energy storage density,the energy storage system has a compact structure,the operation method is simple and easy,and from the experimental process and results,it can be seen that,using a molten salt box for dispersed filling of molten salt,for high-temperature halide salts,it is a suitable packaging method.This research project,along with the experimental setup and results,can provide reference for the engineering application of high-temperature phase change thermal energy storage technology using molten salt.关键词
熔盐相变储能/卤化盐/热能品位/卡诺循环效率/高温储能/超临界机组/储能试验装置Key words
molten salt phase-change energy storage/halogenated salt/thermal energy grade/carnot cycle efficiency/high temperature energy storage/supercritical unit/energy storage test device分类
能源科技
