环境工程学报2025，Vol.19Issue(10)：2363-2373,11.DOI:10.12030/j.cjee.202411055
原位热修复系统能量分布与能效分析
Energy distribution and efficiency analysis of in-situ thermal desorption system
摘要
Abstract
To improve the energy efficiency of in-situ thermal desorption systems and to promote the green development process of in-situ thermal desorption technology,this study constructed a conceptual model of energy distribution and efficiency evaluation mechanism for in-situ thermal desorption systems based on the principle of heat balance.Taking an in-situ gas thermal desorption project in southern China that used a"low-temperature first followed by high-temperature"phasing heating mode as an example,energy analysis and efficiency evaluation of the in-situ thermal desorption system for contaminated sites were carried out.The results showed that the ratio of the effective energy to the overall energy consumption for soil heating in the heating zone was only 18.31％.In contrast,the heat dissipation of surface,vapor extraction,flue gas,side walls and bottoms,and other energy consumption accounted for as high as 81.69％.The results of the sensitivity analysis showed that the temperature had a significant impact on the energy consumption of each part.The energy efficiency analysis showed that the energy efficiency coefficient of the low-temperature heating phase was 27.6 times that of the high-temperature heating phase.To realize precise and efficient insulation and temperature control,and improving the ability of waste heat reuse,were important measures to enhance the energy efficiency of in-situ thermal desorption systems in the future.关键词
污染场地/原位热修复/能量分布/能效评价Key words
contaminated sites/in-situ thermal desorption/energy distribution/energy efficiency evaluation分类
资源环境引用本文复制引用
李书鹏,莎莉,李鸿炫,康绍果,刘宇,李广贺..原位热修复系统能量分布与能效分析[J].环境工程学报,2025,19(10):2363-2373,11.基金项目
北京建工集团有限责任公司科技计划资助项目(RZCA141120220001) （RZCA141120220001）
