Abstract
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.
Original language | English |
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Pages (from-to) | 580-587 |
Journal | Energy Procedia |
Volume | 120 |
DOIs | |
Publication status | Published - 2017 |
MoE publication type | A1 Journal article-refereed |
Keywords
- CFD modeling
- dynamic
- CFB
- BFB
- combustion