用CO2作为工作流体的多生成系统的基于功率的高级优化
Jing Luo1, Qianxin Zhu1, Tatiana Morosuk1
1Institute for Energy Engineering, Technische Universität Berlin, Marchstr. 18, 10587 Berlin, Germany.
Entropy (Basel, Switzerland)
|October 25, 2024
概括
这项研究优化了使用废热和CO2的多发电系统. 改进后的系统在能源效率和成本降低方面取得了显著的改进.
科学领域:
- 热力学和能源系统工程 热力学和能源系统工程
- 可持续能源技术 可持续能源技术
- 废热回收 废热回收 废热回收
背景情况:
- 多代发电系统为可持续发展提供了具有成本效益的能源效率改进.
- 低到中等等级的废热利用对于减少环境影响至关重要.
- 二氧化碳 (CO2) 被研究为同时供电,制冷和加热的工作流体.
研究的目的:
- 研究和优化由废热供电的聚发系统,使用二氧化碳作为工作流体.
- 用先进的基于功率的方法和功率经济分析来评估系统性能.
- 识别改进潜力并提出工程解决方案,以提高系统效率和降低成本.
主要方法:
- 使用Aspen HYSYS®进行系统模拟.
- 基于强电的先进方法,用于强电破坏和成本分析.
- 在组件层面执行经济的图形优化.
主要成果:
- 与基准情况相比,优化的系统显示,运动效率提高了15.4%,平均产品成本降低了7.1%.
- 工程解决方案进一步提高了系统的运动效率11.3%,平均产品成本降低了8.5%.
- 可以避免的能量破坏和投资成本被确定为改进的关键领域.
结论:
- 使用废热和二氧化碳的多发电系统对能源效率和成本降低具有有效性.
- 先进的exergy和exergoeconomic分析为系统优化提供了宝贵的见解.
- 提出的工程解决方案为提高废热驱动的多发电系统的性能提供了实际的途径.
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