生物质双级蒸发双回热有机朗肯循环系统环境分析  

Environmental analysis of biomass double-stage evaporation doubleregenerative organic Rankine cycle system

作　　者：戴文智[1] 沈雄健 宋晓博 杨新乐[1] DAI Wenzhi;SHEN Xiongjian;SONG Xiaobo;YANG Xinle(School of Mechanical Engineering,Liaoning University of Technology,Fuxin 123000,Liaoning,China)

机构地区：[1]辽宁工程技术大学机械工程学院,辽宁阜新123000

出　　处：《化工学报》2025年第3期1230-1242,共13页CIESC Journal

基　　金：国家自然科学基金项目(12302374,12202165,51774161);辽宁省教育厅基金项目(LJKMZ20220685)。

摘　　要：为了探究有机朗肯循环(ORC)对环境的影响,进一步完善ORC对环境影响的研究,基于常规㶲环境法、高级㶲环境法和增强㶲环境法对生物质双级蒸发双回热有机朗肯循环(DEDR-ORC)系统进行环境分析,并使用五个评价指标对其结果进行对比分析。研究结果表明:常规㶲环境法和高级㶲环境法得出组件的改进潜力不尽相同,和高级㶲环境法相比,增强㶲环境法分析得出锅炉的改进顺序发生了变化,从第四变为第三,生物质锅炉的总可避免对环境的影响比高级㶲环境法分析结果提高了22.370 Pts/h。其他组件和高级㶲环境法得出的结果相差不大,说明生物质DEDR-ORC系统对环境的影响主要来自于组件的㶲损失和系统排放的污染物。研究结果可为ORC领域的环境分析提供理论支撑与技术参考。In order to explore the impact of organic Rankine cycle(ORC)on the environment and further improve the research on the impact of ORC on the environment,the environmental analysis of biomass double-stage evaporation double reheat organic Rankine cycle(DEDR-ORC)system was carried out based on conventional exergy environmental method,advanced exergy environmental method and enhanced exergy environmental method,and the results were compared and analyzed using five evaluation indicators.The research results show that the conventional exergy environment method and the advanced exergy environment method have different improvement potentials for the components.The improvement order of boilers obtained by enhanced exergy environmental method has changed from the fourth to the third compared with the advanced exergy environmental method.The total avoidable environmental impact of biomass boilers has increased by 22.370 Pts/h compared with the analysis results of advanced exergy environmental method.The results of other components and advanced exergy environmental method are not much different,indicating that the impact of biomass DEDR-ORC system on the environment mainly comes from the exergy loss of components and the impact of pollutants discharged by the system on the environment.The research results can provide theoretical support and technical reference for environmental analysis in the field of ORC.

关 键 词：生物质 燃料 热力学 有机朗肯循环 高级㶲环境 增强㶲环境 

分 类 号：TK115[动力工程及工程热物理—热能工程]