Mathematical Modeling of Pulverized Coal Combustion in a Blast Furnance PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Mathematical Modeling of Pulverized Coal Combustion in a Blast Furnance PDF full book. Access full book title Mathematical Modeling of Pulverized Coal Combustion in a Blast Furnance by K. Takeda. Download full books in PDF and EPUB format.
Author: K. Takeda
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: K. Takeda
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 460
Get Book Here
Book Description
Author: K. Ishii
Publisher: Elsevier
ISBN: 0080546358
Category : Science
Languages : en
Pages : 325
Get Book Here
Book Description
In order to reduce the cost of running blast furnaces (BFs), injected pulverized coal is used rather than coke to fire BFs. As a result of this, unburned fine materials are blown with the gas into the bosh and dead man areas with possible detrimental effects on gas flow and permeability of the coke column. The capacity of the furnace to consume these particles by solution loss is probably one of the limitations to coal injection. It is, therefore, important to understand the physicochemical and aerodynamic behaviour of fines including the change of in-furnace phenomena. The Committee of Pulverized Coal Combustion and In-Furnace Reaction in BF was set up in 1993 as a cooperative research of the Japan Society for the Promotion of Science (JSPS) and the Iron and Steel Institute (ISIJ) to evaluate research initiative into this problem. This book reports on the JSPS/ISIJ Committee's activities and describes the interpretation of findings drawn from combustion experiments and the results of live furnace applications, and furnace performance.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 236
Get Book Here
Book Description
Author: I. D. Parkin
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: Balbir S. Arora
Publisher:
ISBN:
Category :
Languages : en
Pages : 216
Get Book Here
Book Description
Author: Andrey Dmitriev
Publisher: Cambridge Scholars Publishing
ISBN: 152754205X
Category : Technology & Engineering
Languages : en
Pages : 209
Get Book Here
Book Description
This book presents the results of extensive research on the mathematical modelling of the blast furnace process. It describes the mathematical models utilised, providing insights into two-dimensional models of gas dynamics, heat transfer and reduction, the cohesion zone, and the balance equilibrium model. On the basis of these models, it details a method for the analytical study of the blast-furnace process, which essentially complements the experimental methods used in practice. Examples of the solution of practical problems of blast furnace smelting are also provided, and the mathematical models highlighted here can be used in research and design institutes, at metallurgical enterprises and for higher education institutions in the training of students in metallurgical specialties.
Author: L. Smoot
Publisher: Springer Science & Business Media
ISBN: 1475716966
Category : Science
Languages : en
Pages : 336
Get Book Here
Book Description
viii and approaches could be adapted to other coal conversion and combustion problems, we have not considered combustion or gasification in fluidized or fixed beds or in situ processes. In addition, we have not considered other fossil-fuel combustion problems associated with oil shale, tar sands, etc., even though many aspects of pulverized-coal combustion would relate to these problems. For the case of pulverized-coal models, we have attempted to provide a detailed description of the model foundations. Parts I and II of this book emphasize general principles for describing reacting, turbulent or laminar, multiphase systems. General conservation equations are developed and summarized. The basis for computing thermochemical equilibrium in complex, heterogeneous mixtures is presented, together with techniques for rapid computation and reference to required input data. Rate processes are then discussed, including pertinent aspects of turbulence, chemical kinetics, radiative heat transfer, and gas-particle convective-diffusive interactions. Much of Part II deals with parameters and coefficients for describing these complex rate processes. This part of the book provides recommended values of coefficients and parameters for treating complex reacting flows. Parts I and II may well be suitable for use in an advanced course in reacting flows, and have been written partly with that in mind. Part III deals with more specific aspects of pulverized-coal characteristics and rate processes. Following a general description of coal structure and constitution, coal pyrolysis and char oxidation processes are considered.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
Get Book Here
Book Description
Author: Saurav Pokharel
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 0
Get Book Here
Book Description
Coal is one of the major fossil fuels used for power generation. Coal consumption is decreasing on a global scale, but it is predicted to be in use for power generation until decades to come because of its affordability, reliability, and abundance. However, the carbon intensity of electricity from coal is very high (1000g CO2/KWh). The oxy-fuel combustion and co-firing of coal with biomass are promising technologies to decrease the carbon footprint of coal. This work aims to study the conversion of coal char and pine char in a quartz tube reactor numerically. The effect of fuel type, particle size, and the conversion environment(oxy-combustion and air-like environment) are investigated. Besides that, the performance of a simple SNOR (single nth order reaction) model in predicting the burnout and temperature history of solid fuel particles is also evaluated. The SNOR model is calibrated using the more sophisticated, network-based CBK/E and CBK/G models through the commercially available software “PC Coal Lab”. The SNOR model is verified against the CBK/E and CBK/G models and validated against the experimental data. Simulation results showed that the pine char burned hotter and faster as compared to the coal char which agrees with the experimental results. Both fuels burned with higher peak temperature in an air-like environment than in the oxy-combustion environment because of the greater heat capacity of CO2 and smaller diffusivity of O2 in the oxy-combustion environment. Overall, the simulation results were in good agreement with the experimental results in terms of char temperature history, burnout times, and char core diameter.
