Modelling of Air and Oxy-fuel Combustion in a Circulating Fluidized Bed
Journal Title: Acta Energetica - Year 2016, Vol 27, Issue 2
Abstract
The paper presents the use of a computer model to simulate the process of fluidization in an industrial boiler at Turów power plant. Air and oxy-fuel combustion was modelled for the study, and the effect of the geometrical model’s simplification on the bulk material distribution in the combustion chamber was examined. Numerical simulations were performed using Ansys FLUENT software enhanced with additional user defined functions that were implemented in the calculation procedure. The computer model allowed for the analysis of the effect of solid phase’s volume fraction in the combustion chamber on the heat exchange between the bulk material and the boiler’s heated surfaces. The computer simulation results showed satisfactory consistence with measured data.
Authors and Affiliations
Wojciech Adamczyk
Evaluation of the Complementarity of Wind Energy Resources, Solar Radiation and Flowing Water – a Case Study of Piła
The paper analyses the complementarity of electrical energy yield, using a multiannual, monthly and daily approach, for a small hydroelectric power station, wind turbine and photovoltaic plant. The results obtained point...
Identification of High-resistance Earth Faults in Medium Voltage Networks Using Higher Harmonics
One way to detect line-to-earth arc faults and high-resistance faults in compensated medium voltage networks is based on the criterion of reactive power of higher harmonics in zero sequence voltage and current components...
Application of Matrix Notation for the Analysis of Power Changes in a 3 phase Circuit
Using the matrix notation for voltages and currents of a 3-phase system, a description of changing the instantaneous power on terminals of electric circuit has been offered as a third rank matrix. As a result of the powe...
The Optimal Choice of Electrochemical Energy Storage Parameters
The possibility of using energy storage in a power system is being highlighted increasingly often. Its operating mode or manner of use is called the “storage usage strategy”. One of them, program operation, was selected...
An Nonconventional Power Swing Blocking Solution for Power Unit’s Under-impedance Protections
The paper discusses the problem of malfunctioning of under-impedance protections of power units and conventional power swing blocking solutions for these protections during power swings. Typical solutions of under-impeda...