Development and Validation of a Dynamic Response Model for a Cold Flow Circulating Fluidized Bed
详细信息 查看全文
- 作者：Esmail R. Monazam ; Ronald W. BreaultAdam D. Freed ; Lawrence Shadle ; Larry O. Lawson ; Steven L. Rowan
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：2017
- 出版时间：January 11, 2017
- 年：2017
- 卷：56
- 期：1
- 页码：288-300
- 全文大小：699K
- ISSN：1520-5045
文摘
A dynamic response model has been created of the Cold Flow Circulating Fluidized Bed at NETL in Morgantown, WV. The model is considered dynamic, as opposed to steady state, because it is used to predict the transient responses of gas and solids flows throughout the unit as process conditions vary. The model was built in ProTrax with Advanced Continuous Simulation Language (ACSL) custom code. Dynamic experiments, varying both gas and solids flows, in the CFB unit have been used to validate the accuracy of the model. The advantage of this model is its utility in predicting gas hold up and solids flow throughout the unit during transitions of process conditions. Accurate predictions of these phenomena are important in process control and optimization. The dynamic experiments used in validating the model include modulations of the system pressure, move air (solids flow), and riser gas velocity with step and sinusoidal changes.