| Autor: |
TOMIĆ, Mladen, ŽIVKOVIĆ, Predrag, ŠKUNDRIĆ, Jovan, KLJAJIĆ, Miroslav, STEPANOV, Borivoj, VLAOVIĆ, Željko |
| Předmět: |
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| Zdroj: |
Acta Technica Corviniensis - Bulletin of Engineering; Oct-Dec2023, Vol. 16 Issue 4, p1-5, 5p |
| Abstrakt: |
This paper presents an analysis of a biomass-fired steam boiler with capacity of 14 MW which produces saturated steam at pressure of 14 bar using agriculture residue straw as fuel. The boiler operates with flue gas recirculation rate of 20%, a common technique to improve the efficiency of the combustion process and reduce emission. Data from the PLS sensors were collected to evaluate the boiler's performance. Thermal calculations were performed to analyze the heat transfer rate, heat loss, and combustion efficiency of the boiler. Three different cases were considered: flue gas recirculation after the bag filters, recirculation after the flue gas channel exit, and without the recirculation. Parallel, the emission of NOx for all scenarios was discussed. The analysis of the results shows that for both cases flue gas recirculation yields almost the same efficiency. However, the efficiency for lower flue gas recirculation is increased, and without flue gas recirculation was the highest according to both the model and calculations. This suggests that while flue gas recirculation can be an effective way to improve combustion efficiency and reduce emissions, it may not always be the most optimal solution. The findings of this study provide valuable insights into the biomass-fired steam boilers performance and the impact of flue gas recirculation on their efficiency and NOx emission. These insights can be useful for optimizing the design and operation of similar biomass-fired steam boilers and for promoting the use of renewable energy sources in industrial processes. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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