Analysis of the processes in fluidized bed boiler furnaces during load changes
| Autor: | Sirpa Kallio, Ville Ylä-Outinen, Juho Peltola, Timo Niemi, Marko Huttunen, Lassi Karvonen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Engineering
020209 energy 02 engineering and technology Computational fluid dynamics Combustion 0202 electrical engineering electronic engineering information engineering Fluidized bed combustion SDG 7 - Affordable and Clean Energy Process engineering ta218 Bubbling fluidized bed ta212 dynamic ta214 CFD modeling Waste management business.industry Boiler (power generation) 021001 nanoscience & nanotechnology Renewable energy BFB CFB 0210 nano-technology business combustion |
| Zdroj: | Huttunen, M, Peltola, J, Kallio, S, Karvonen, L, Niemi, T & Ylä-Outinen, V 2017, ' Analysis of the processes in fluidized bed boiler furnaces during load changes ', Energy Procedia, vol. 120, pp. 580-587 . https://doi.org/10.1016/j.egypro.2017.07.175 |
| ISSN: | 1876-6102 |
| DOI: | 10.1016/j.egypro.2017.07.175 |
| Popis: | Due to increased share of intermittent renewable energy production, flexibility demands for boiler based energy production have increased in the form of required faster ramp rates and lower allowed minimum loads. To illustrate the effects of changes in boiler load, the present paper focuses on analysis of furnace processes in bubbling fluidized bed (BFB) and circulating fluidized bed (CFB) combustion during a load change. Computational fluid dynamic (CFD) modeling is used as the analysis tool. The paper illustrates by means of simulations what changes take place in the temperature and composition distributions. The effects on emissions are also analyzed in the case of the BFB boiler. The differences between CFB and BFB furnaces in their capability to respond to load change demands are discussed. |
| Databáze: | OpenAIRE |
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