Validating the MFiX-DEM Model for Flow Regime Prediction in a 3D Spouted Bed [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 622.7 Ore dressing
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Office of the Assistant Secretary of Energy for Fossil Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2018
• Mô tả vật lý: Size: 27 p. : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 268023
• Chủ đề: 1. 01 coal, lignite, and peat; 2. 09 biomass fuels; 3. 20 fossil-fueled power plants; 4. 42 engineering; 5. Spouted beds

Tóm tắt

 The spout-fluidized bed reactor with relatively large oxygen carrier particles offers several advantages in chemical looping combustion operation using solid fuels. The large difference in size and weight between the oxygen carrier particles and the smaller coal or ash particles allows the oxygen carrier to be easily segregated for recirculation
  the increased solids mixing due to dynamic flow pattern in the spout-fluidization regime prevents agglomeration. The primary objective in this work is to determine the effectiveness of the MFiX-DEM model in predicting the flow regime in a spouted bed. Successful validation of the code will allow the user to fine tune the operating conditions of a spouted bed to achieve the desired operating condition.