超临界二氧化碳发电厂及组件的变工况模拟

2019年12月19日 北京时间上午10点-11点

注册

基于超临界二氧化碳工质的布雷顿循环是将热能转换为电能的新颖方式。众多研究表明,和传统蒸汽朗肯循环及超高临界蒸汽朗肯循环相比,这些超临界二氧化碳循环有显著的可能性获得更高能效。更高的循环效率会带来更低的燃料成本,更少的水资源消耗,如果是以化石燃料为能源,则意味着更低的温室气体排放。再者,超临界二氧化碳整个循环都在高压下进行,工质处于高密度状态,因此设备尺寸更小、占地面积小、总投资更低。

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因为环境条件、热输入、以及电力产量需求等因素的变化,发电厂并不会一直运行在设计工况下。因此,在评估电厂生命周期循环性能的时候,有必要考虑非设计工况性能。对循环效率进行分析和模拟会帮助我们理解循环组件(透平和压缩机)对循环性能的影响和重要性。

SoftInWay作为业界领先的叶轮机械软件和技术咨询提供者,迅速抓住了超临界二氧化碳这一热点。我们经验丰富的资深工程师已经多次成功地在系统和部件层面进行了设计分析和优化。SoftInWay编写的AxCYCLE™软件可以用来模拟超临界二氧化碳循环而AxSTREAM®可以用来设计超临界二氧化碳透平和压缩机。AxSTREAM ION™可以用来把这些程序集成起来,将整个设计流程自动化从而加快开发速度。

在本在线研讨会,我们会简单回顾一下超临界二氧化碳循环已有的研究,并介绍不同的循环配置方案。我们会讨论如何运用AxSTREAM软件平台精确地计算变工况循环效率。然后我们会演示如何在AxSTREAM ION™里面连接AxCYCLE™ and AxSTREAM®制定一个工作流程。用这个方法做变工况分析不再单纯依赖压缩机和透平的性能数据(因其只能给出插值的近似结果),而是可以从循环边界条件中获得透平机械的准确性能以得到变工况条件下准确的循环性能。

主要内容:

  • 介绍超临界二氧化碳应用场景和现有研究结论
  • 不同的超临界二氧化碳循环案例
  • AxSTREAM® 平台介绍,包括 AxSTREAM®、AxCYCLE™ 和 AxSTREAM ION™
  • 演示如何使用AxSTREAM ION™模拟超临界二氧化碳循环的变工况循环及组件性能以精确计算循环效率

面向人群:

  • 在超临界二氧化碳领域从事和系统循环或透平机械开发相关工作的工程师
  • 希望了解超临界二氧化碳循环设计及分析过程的工程经理及主管
  • 希望了解对现有设备分析优化的完整案例的学生,以及希望加深和拓宽超临界二氧化碳方面认识的学生

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