基于操作弹性的有机朗肯循环工质选择

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文章编号：1003-9015（2024）04-0649-10

图分类号：TK115 文献标志码：A DOI：10.3969/j.issn.1003-9015.2025.04.008

Abstract：The selection of workingfluids is crucial for organic Rankinecycle（ORC）design，which has traditionally focusedon achieving optimal performance at the design point，whileoverlooking potential performance degradationcaused bydeviations from nominal operating conditions.This work developed anoperational flexibilityanalysis framework to facilitate optimal process design and working fluid selection by explicitly considering environmental uncertainties.The framework was based on ORC of-design models to capture potential deviations in process performance fromthatatthe designpoint.The volumetric flexibility index wasadopted toquantifythe sizeof the operational feasible region inthe uncertain parameter space.The application of theanalysis framework was demonstrated on an ORC-based flue gas heat recovery system. The results show that the choice of working fluid impacts operational flexibility and can be correlated with its boiling point.

Key words：organic Rankine cycle； operational flexibility； working fluid selection；off-design

1前言

有效开发和利用废弃物以及可再生能源是当今低碳排放和可持续发展需求背景下的重要议题。（剩余10652字）