对利用液化天然气冷能发电系统的压力破坏分析
Teng Wan1, Bin Bai1, Weihong Zhou1
1School of Civil Engineering, University of Science and Technology Liaoning, Anshan, 114051, China.
Heliyon
|October 9, 2023
概括
这项研究使用先进的力分析 (AEA) 精确确定组合动力循环中的力破坏. 热交换器,特别是冷凝器,造成的破坏最大,但轮机提供了显著的改进潜力.
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
- 发电的发电方式是发电.
背景情况:
- 集成有机兰金循环 (ORC) 和直接扩张循环 (DEC) 的联合发电系统对于能源效率至关重要.
- 了解能量破坏的内部原因是优化这些系统的关键.
- 先进的力分析 (AEA) 提供了一个详细的方法来评估组件级的力损失.
研究的目的:
- 在一个联合ORC-DEC系统中,深入了解能量破坏的内部原因.
- 识别导致显著能量损失的特定组件和过程.
- 确定系统改进和优化的潜在领域.
主要方法:
- 利用先进的力分析 (AEA) 来调查每个组件的力破坏.
- 分析了一种结合循环发电系统,其中包括ORC和DEC.
- 量化能量和功率效率,以及组件智能的功率破坏比率.
主要成果:
- 拟议系统的净输出功率为106.64千瓦,能源效率为11.22%,能量效率为21.40%.
- 热交换器是能量破坏的主要来源 (81.70%),冷凝器是最大的贡献者 (59.82%).
- 主要由于低效率导致的轮功耗破坏,显示出显著的可避免潜力 (25.93千瓦),超过了热交换机.
结论:
- 虽然系统中的大部分能量破坏是内源的和不可避免的,但优化工作应该优先考虑轮机.
- 在ORC和DEC轮机中,可避免的高能量破坏表明了性能提升的巨大潜力.
- 轮机设计和操作的有针对性的改进可以使组合动力循环的整体效率显著提高.
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