In the current work, a transient/dynamic 1-dimensional model has been developed in the commercial software APROS for the 300 MW_th circulating fluidized bed power plant of Sumitomo SHI FW. The operation of the plant is simulated under steady-state at two boiler loads: 100% and 60%, and the results for the distribution of temperature, pressure, mass and heat flow of the water/steam as well as for the flue gas composition and its thermodynamic properties are compared against performance data provided by the company, showing good agreement. Following this, the validated model is utilized to investigate the effectiveness of a thermal energy storage concept, which utilizes a bubbling fluidized bed to store particles during ramp down operation and return them to the fluidized bed during ramp up. Three dynamic scenarios are simulated for the load transition 100%-60%-100%: (a) a case without the use of thermal energy storage, (b) a case with thermal energy storage removing 20% of the solid inventory of the fluidized bed, and (c) a case with thermal energy storage removing 40% of the solid mass of the bed. The results of the three simulations are compared between them and the achieved ramp down/up rates (calculated based on the 90% method) are equal to: (a) 5.09/5.06%/min, (b) 5.64/5.73%/min and (c) 6.19/6.12%/min, respectively. These rates are higher than the current state-of-the-art rates of circulating fluidized bed power plants. The highest rates were achieved with the 3rd simulation scenario, in which, however, the live steam pressure fluctuations exceeded the technical limits of ±10 bar.

在目前的工作，瞬态/动态一维模型已经在商业软件开发APROS为300兆瓦_日住友SHI FW循环流化床电厂。工厂的运行模拟在两种锅炉负荷的稳态下：100% 和 60%，以及水/蒸汽的温度、压力、质量和热流分布以及烟气成分的结果并将其热力学性能与该公司提供的性能数据进行比较，显示出良好的一致性。在此之后，经过验证的模型用于研究热能存储概念的有效性，该概念利用鼓泡流化床在减速操作期间存储颗粒，并在加速期间将它们返回到流化床。针对负载转换 100%-60%-100% 模拟了三种动态场景：(a) 不使用热能存储的情况，(b) 热能储存去除流化床固体质量的 20% 的情况，以及 (c) 热能储存去除流化床固体质量的 40% 的情况。三种模拟的结果在它们之间进行比较，所达到的斜坡下降/上升速率（基于 90% 方法计算）等于：（a）5.09/5.06%/min，（b）5.64/5.73%/min (c) 分别为 6.19/6.12%/min。这些速率高于循环流化床电厂当前最先进的速率。在第三个模拟场景中实现了最高速率，然而，在该场景中，新蒸汽压力波动超过了 ±10 bar 的技术限制。三种模拟的结果在它们之间进行比较，所达到的斜坡下降/上升速率（基于 90% 方法计算）等于：（a）5.09/5.06%/min，（b）5.64/5.73%/min (c) 分别为 6.19/6.12%/min。这些速率高于循环流化床电厂当前最先进的速率。在第三个模拟场景中实现了最高速率，然而，在该场景中，新蒸汽压力波动超过了 ±10 bar 的技术限制。三种模拟的结果在它们之间进行比较，所达到的斜坡下降/上升速率（基于 90% 方法计算）等于：（a）5.09/5.06%/min，（b）5.64/5.73%/min (c) 分别为 6.19/6.12%/min。这些速率高于循环流化床电厂当前最先进的速率。在第三个模拟场景中实现了最高速率，然而，在该场景中，新蒸汽压力波动超过了 ±10 bar 的技术限制。