Modeling the burnout of solid polydisperse fuel under the conditions of external heat transfer
| Autor: | Yu. M. Goldobin, L. G. Galperin, E. M. Tolmachev, I. A. Skorik |
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| Rok vydání: | 2013 |
| Předmět: |
HEAT TRANSFER
Materials science FUELS PARTICLE DISTRIBUTION FUNCTIONS MODELS COMBUSTION CHAMBER WALLS Energy Engineering and Power Technology Thermodynamics Combustion SOLID FUELS POLYDISPERSITY Physics::Fluid Dynamics COMBUSTION Fuel mass fraction MODELING Mass transfer DISTRIBUTION FUNCTION GAS RECIRCULATIONS Physics::Chemical Physics POLYDISPERSE COMPOSITION Physics::Atmospheric and Oceanic Physics EXTERNAL HEAT TRANSFER SOLID FUEL Diffusion flame COMBUSTION CHAMBERS DISTRIBUTION FUNCTIONS Solid fuel POLYDISPERSES Distribution function Nuclear Energy and Engineering Heat transfer COMBUSTION MODES DIFFUSION COMBUSTION Combustion chamber COMBUSTION MODE |
| Zdroj: | Thermal Engineering |
| ISSN: | 1555-6301 0040-6015 |
| DOI: | 10.1134/s0040601513110104 |
| Popis: | A self-similar burnout mode of solid polydisperse fuel is considered taking into consideration heat transfer between fuel particles, gases, and combustion chamber walls. A polydisperse composition of fuel is taken into account by introducing particle distribution functions by radiuses obtained for the kinetic and diffusion combustion modes. Equations for calculating the temperatures of particles and gases are presented, which are written for particles average with respect to their distribution functions by radiuses taking into account the fuel burnout ratio. The proposed equations take into consideration the influence of fuel composition, air excess factor, and gas recirculation ratio. Calculated graphs depicting the variation of particle and gas temperatures, and the fuel burnout ratio are presented for an anthracite-fired boiler. © 2013 Pleiades Publishing, Inc. |
| Databáze: | OpenAIRE |
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