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2012 | 33 | 3 | 487-503
Article title

Thermochemical analysis of a flue gas-driven biomass gasification

Content
Title variants
Languages of publication
EN
Abstracts
EN
One of the methods of obtaining energy from renewable sources is the technology of indirect cofiring of biomass. It consists in the gasification of secondary fuel and combustion of the generated gas in the boiler together with its primary fuel. The paper presents a thermodynamic analysis of the use of the boiler flue gases as the converting medium in the process of indirect co-firing - a technology which is being developed at the Institute of Power Engineering and Turbomachinery of the Silesian University of Technology. The basis of the analysis are the data resulting from variant calculations conducted with the use of the Gaseq program. The calculations were made for various compositions of gasified fuel and the converting medium, variable fuel/oxidiser ratios and variable gasification temperatures. As a result, the equilibrium composition and the calorific value of the generated gas were obtained. The main optimisation objective adopted here was the nondimensional efficiency coefficient, which is the ratio of the chemical energy of products to the chemical energy of the process reactants.
Publisher

Year
Volume
33
Issue
3
Pages
487-503
Physical description
Dates
published
1 - 10 - 2012
received
accepted
online
31 - 10 - 2012
Contributors
author
  • Silesian University of Technology in Gliwice, Institute of Power Engineering and Turbomachinery, 44-100 Gliwice, ul. Konarskiego 20, Poland, rafal.litka@polsl.pl
  • Silesian University of Technology in Gliwice, Institute of Power Engineering and Turbomachinery, 44-100 Gliwice, ul. Konarskiego 20, Poland
References
  • Kalina J., 2011. Modelling of fluidized bed biomass gasification in the quasi-equilibrium regime for preliminary performance studies of energy conversion plants. Chem. Process Eng., 32, 73-89. DOI: 10.2478/v10176-011-0007-5.[Crossref][WoS]
  • Kozaczka J., 1994. Gasification processes. Engineering methods of calculations. Wydawnictwa AGH, Cracow (in Polish).
  • Miles T., Baxter L., Bryers R., Jenkins B., Oden L., 1995. Alkali deposits found in biomass power plants: A preliminary investigation of their extent and nature. National Renewable Energy Laboratory, Golden, CO 1995.
  • Nadziakiewicz J., Wacławiak K., Stelmach S., 2007. Thermal processes of waste utilization. Wydawnictwo Politechniki Śląskiej, Gliwice (in Polish).
  • Orłowski P., Dobrzański W., Szwarc E., 1979. Steam boilers. Design and calculations. Wydawnictwa Naukowo-Techniczne, Warsaw (in Polish).
  • Tomeczek J., 1991. Coal gasification. Wydawnictwo Politechniki Śląskiej, Gliwice (in Polish).
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_v10176-012-0041-y
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