Experimental Studies of Combustion of Biofuel in a Fluidized Bed
Journal Title: Вентиляція, освітлення та теплогазопостачання - Year 2017, Vol 23, Issue
Abstract
Results of experimental studies of heat losses due to mechanical underburning of various types of wood fuel in the furnaces of the fluidized bed are presented. Influence of the bed temperature and the air excess factor on the magnitude of mechanical underburning is shown. A significant increase in the content of combustible components in the entrainment is observed at the temperature below 750 °C, the completeness of combustion of the fuel increases at the temperature of the boiling layer above 800 °C. The optimum values of the excess air factor (1.4 ... 1.6) are determined, which ensure minimum fuel drift from the boiler furnace volume, as well as the fluidization number for various operating modes of the furnace. The results of determining the burning rate of wood waste (wood chips, sawdust) and granulated wood fuel (pellets) at the absence of heat removal are given. It is noted that the burning out of granulated fuel is more prolonged than the burning rate of unprepared wood waste, while the loss of heat due to mechanical incompleteness of combustion for such fuel is lower, since the compressed fuel has a higher density and less sail than sawdust and chips
Authors and Affiliations
O. Redko, I. Redko, Yu. Pivnenko
Keywords
Related Articles
- EP ID EP556402
- DOI -
- Views 49
- Downloads 0
Numerical Simulation of Combustion Processes of Solid Fuel in a Furnace with Counter-Current Twisted Streams
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...
Comparison of the Efficiency of the Coiled-Type Heat Exchangers
In the article, the self-regulating heat supply system from individual heat points with heat storage devices and coil-type heat exchangers for independent heating and hot water supply systems is considered. A comparison...
Increasing the Efficiency of Cleaning Coke Oven Gas from Dust, Carbon Dioxide and Formaldehyde Vapors in Scrubbers of the Attachment Type
In this paper, the results of industrial tests of a new triangular attachment with cross-holes for cleaning coke oven gas from dust, carbon dioxide and formaldehyde vapours are given. According to these data, comparative...
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...
Assessment of Domestic Waste Water Potential for In-House Heat Pump Systems
A preliminary assessment of the possibilities of utilizing domestic waste water as a low-temperature source for a heat pump is made in the paper. Based on energy balance and heat transfer equations and analysis of thermo...