期刊
CHEMICAL ENGINEERING JOURNAL
卷 223, 期 -, 页码 816-823出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2013.03.051
关键词
Oxy-coal combustion; Circulating fluidized bed; Euler-Euler model; Experimental verification
资金
- National Key Program of Basic Research of China [2011CB707301]
- Major Research Funds of Southeast University [3203000103, 3203001101]
- State Key Laboratory of Coal Combustion [FSKLCC1006]
The Euler-Euler modeling approach was employed to simulate the coal combustion in a circulating fluidized bed combustor. The unsteady processes of gas-solid two phase flow, heat transfer, mass transfer and chemical reactions were considered. By numerical simulation, distributions of pressure, solid volume fraction, temperature and gas concentrations (O-2, CO2, H2O, CO, NO and SO2) were studied in O-2/CO2 combustion mode (mixture of O-2 and CO2 from gas bottles as oxidant) and O-2/RFG combustion mode (mixture of O-2 and recycled flue gas as oxidant) with O-2 concentration range of 21-40%. Calculations were made for two cases, maintaining the same coal feed rate and maintaining the same oxidant volume flow rate. Simulated temperature distribution, pressure distribution and outlet gas concentrations were validated by the experimental data in 30% O-2/70% CO2 atmosphere. (C) 2013 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据