Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 7

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

Search:
in the keywords:  co-firing
help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Publication available in full text mode
Content available

Co-Firing of Biomass with Pulverised Coal in Oxygen Enriched Atmosphere

100%
Pawlak-Kruczek H., Ostrycharczyk M., Baranowski M., Czerep M., Zgóra J.
Chemical and Process Engineering
|
2013
|
issue 2
2
Content available remote

Thermochemical analysis of a flue gas-driven biomass gasification

100%
Litka R., Kalisz S.
Chemical and Process Engineering
|
2012
|
vol. 33
|
issue 3
487-503
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.
3
Content available remote

Dew Point of the Flue Gas of Boilers Co-Firing Biomass with Coal

100%
Ciukaj S., Pronobis M.
|
|
vol. 34
|
issue 1
101-108
EN
The paper deals with the impact of co-firing biomass with coal in boilers on the dew point of the flue gas. Co-firing of biomass may have twofold implications on corrosion and fouling, which are the processes that determine the lowest acceptable flue gas outlet temperature and as a result, boiler efficiency. Both phenomena may be reduced by co-firing of usually low sulphur biomasses or enhanced due to increased moisture content of biomass leading to increased water dew point. The present study concerns the problem of low-temperature corrosion in utility boilers. The paper gives (in the form of diagrams and equations) a relationship between water dew point and moisture content of fuel mixture when co-firing coal and various biomasses. The regression analysis shows that despite significant differences in the characteristics of coals and these of additional fuels, which are planned for co-firing in large-scale power boilers, the water dew point can be described by a function given with the accuracy, which shall be satisfactory for engineering purposes. The discussion of the properties of biofuels indicates that the acid dew point surplus over the water dew point (Δtr = tr - twr) is not likely to exceed 10 K when co-firing biomass. The concluding remarks give recommendations for the appropriate operation of boilers in order to reduce risks associated with biomass co-combustion.
4
Content available remote

Co-Firing of Biomass with Pulverised Coal in Oxygen Enriched Atmosphere

100%
Pawlak-Kruczek H., Ostrycharczyk M., Baranowski M., Czerep M., Zgóra J.
|
|
vol. 34
|
issue 2
215-226
EN
The aim of the paper is a comparative study of co-firing high shares of wooden and agro-biomass with hard coal under oxy-fuel and air conditions in the laboratory scale reactor for pulverised fuels. The investigations of co-combustion behaviour NOx and SO2 emission and burnout were carried out for selected blends. Detailed investigations were concentrated on determining the effect of dosing oxygen method into the burner on NOx emission. The paper presents the results of co-firing blends with 20 and 50% share of biomass by mass in air and oxy-combustion condition. Biomass oxy-cofiring integrated with CCS (CO2 capture) technology could be a carbon negative technology. The reduction of NOx emissions in the conditions of oxy-co-firing is dependent on the concentration of oxygen in the primary stream of oxidiser. A significant reduction of NOx was achieved in the case of low oxygen concentration in the primary stream for each investigated blends. Co-firing of biomass with coal in an oxygen enriched atmosphere enhances combustion behaviour, lowers fuel burnout and as a result increases of the boiler efficiency.
5
Publication available in full text mode
Content available

Dew Point of the Flue Gas of Boilers Co-Firing Biomass with Coal

88%
Ciukaj S., Pronobis M.
Chemical and Process Engineering
|
2013
|
issue 1
6
Publication available in full text mode
Content available

Thermochemical analysis of a flue gas-driven biomass gasification

88%
Litka R., Kalisz S.
Chemical and Process Engineering
|
2012
|
issue 3
7
Publication available in full text mode
Content available

Numerical modelling of a stoker furnace operated under indirect co-firing of biomass

75%
Litka R., Kalisz S.
Chemical and Process Engineering
|
2016
|
vol. 37
|
issue 2
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.