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复杂配置有机兰金循环系统的动态行为分析使用多时间尺度动态建模框架.
1School of Marine Engineering Equipment, Zhejiang Ocean University, Zhoushan 316022, China.
Entropy (Basel, Switzerland)
|November 26, 2025
概括
本研究介绍了复杂的有机兰金循环 (ORC) 系统的多时间尺度建模框架. 该方法有效模拟ORC动态,改善控制策略的开发.
科学领域:
- 热力学是一种热力学.
- 能源系统工程 能源系统工程
- 计算建模 计算建模
背景情况:
- 由于强大的多物理合,复杂的有机兰金循环 (ORC) 系统对动态分析提出了重大计算挑战.
- 精确的动态建模对于优化性能和开发ORC应用中先进的控制策略至关重要.
研究的目的:
- 为复杂的ORC系统开发一个计算效率高,准确的多时间尺度建模框架.
- 为了减少与具有复杂配置的ORC系统动态分析相关的模拟负担.
主要方法:
- 提出了一个多时间尺度建模框架,将ORC系统划分为二,十秒和混合尺度子系统.
- 为关键的ORC组件开发动态模型,包括热交换器,扩展器,,发电机和转换器.
- 该框架使用基本ORC系统的运行数据进行了验证,随后应用于双循环和多热源ORC配置.
主要成果:
- 拟议的多时间尺度框架在基本的ORC系统上实现了2.12%的平均绝对误差,证明了高精度.
- 对一系列双环ORC的应用表明,对热源和散热器的波动有更强的干扰排斥能力.
- 对多热源ORC的分析显示,系统动态主要受到第二热源的影响.
结论:
- 多时间尺度建模框架为模拟复杂的ORC架构提供了一种高效准确的方法.
- 该框架为ORC系统的先进控制策略的开发和测试提供了坚实的基础.
- 该研究强调了特定ORC配置的好处,例如双循环系统,以提高操作稳定性.
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