Numerical Simulation of Combustion Processes of Solid Fuel in a Furnace with Counter-Current Twisted Streams
Journal Title: Вентиляція, освітлення та теплогазопостачання - Year 2017, Vol 22, Issue
Abstract
The purpose of the work is numerical research of the powdered peat processes in a cylindrical vortex furnace with counter current twisted flows. The results of computer simulation has been presented for burning processes of low-grade solid fuel (powdered peat) with humidity of 40 %, ash content of 6 % and higher specific heat of combustion Qh = 12.3 MJ/kg. The fields of temperature distribution and gases velocity and particles in volume and at the exit from the furnace are obtained. The particle motion trajectories with a diameter of 25 microns and 250 microns in volume of heating are obtained. It has been calculated that the concentration of oxygen is close to zero along the height of heating. At the outlet of the furnace the concentration of oxygen is equal to 5...6%, since oxygen is supplied from excess (αv = 1,2). Mechanical underburning is 0.06 %. It has been shown that the furnace provides the complete burning of 99.8 % for powdered particles of peat and 100% for volatile particles
Authors and Affiliations
I. Redko, A. Redko, E. Kirilash, V. Norchak
Keywords
Related Articles
- EP ID EP556507
- DOI -
- Views 73
- Downloads 0
Technologies to Provide Heat Energy Efficient Houses With Using Solar Fences
This paper deals with the use of solar energy solar installation. Taking into account the fact that the volume of traditional fuel energy is not significant and limited, it is important for the present and future generat...
A Process of Treatment of Water Is in the Magnetic Fields
The existent scientific hypotheses of influence of magnetic-field are analyzed on the molecules of water, features magnetic water that can be used in many spheres of vital functions, power engineering specialists etc. Ap...
Numerical Study of Aerodynamic Processes in the Furnace Water-tube Boiler at Different Operating Conditions
The results of numerical studies of aerodynamics of the furnace of water-tube steam boiler DE-10/14 are presented. The boiler is equipped by vortex gas-oil burner GMG-7 performing 718 m3/h of natural gas. Calculations of...
Using Electromagnetic Waves for Controlling the Processes of Moisture Transfer in Materials of Artistic Products
In order to control of moisture transfer in museum’s exhibits (for example, in pictures by masters of past centuries, hobbles, sculptures etc.), it is proposed to use the method of electromagnetic energy absorption (UHF...
Research оf Microclimate Parameters in Chambers for Growing Green Crops
An important task of the agricultural sector is to increase production, expand the range and improve the quality of green crops in the winter and early spring periods. The solution to this problem is the active developme...