CYMIC{reg_sign} -- Boiler scale-up and full scale demonstration experiences
- Tampella Power Inc., Tampere (Finland)
- Tampere Univ. of Technology (Finland)
This paper describes the CYMIC boiler scale-up principles, first full scale experiences from demonstration plant and results from mathematical modelling of the cyclones. CYMIC pilot testing was successfully completed with very positive results, the next step was a CYMIC scale-up and full scale demonstration. The 30 MWth demonstration plant was commissioned during the fall of 1994. The plant is owned by VAPO Oy and it is in the city of Lieksa, eastern Finland. The CYMIC has been scaled up by developing six different cyclones and the multiplication system to cover the capacity range from 30 to 600 MWth. The design of this CYMIC series and the first sold industrial scale CYMIC are presented in the paper. The scale-up of the cyclone was mathematically modelled by Professor Karvinen and his group at Tampere University of Technology. The model which uses Sflow-code was tested and the parameters were set using the pilot test results. The model operated well, so three bigger cyclones were calculated. The first was the cyclone for the Lieksa plant and the other two were bigger standard cyclones. Particles were also included in the model. The variables in the calculations were the cyclone diameter, inlet vane shape and position. Commissioning of the Lieksa plant began in August 1994. The process including operation of the cyclone and the gaslock were then verified at full scale. Flue gas emissions, the combustion efficiency and the performance of the cyclone were also measured. This paper discuss the most interesting results of the measurements.
- OSTI ID:
- 245012
- Report Number(s):
- CONF-950522-; ISBN 0-7918-1305-3; TRN: IM9627%%378
- Resource Relation:
- Conference: 13. international conference on fluidized-bed combustion, Orlando, FL (United States), 7-10 May 1995; Other Information: PBD: 1995; Related Information: Is Part Of 13. international conference on fluidized bed combustion: Proceedings. Volume 1; Heinschel, K.J. [ed.] [Air Products and Chemicals, Inc., Allentown, PA (United States)]; PB: 719 p.
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
09 BIOMASS FUELS
FLUIDIZED BED BOILERS
DESIGN
PERFORMANCE
CYCLONE SEPARATORS
MATHEMATICAL MODELS
DEMONSTRATION PLANTS
THERMAL EFFICIENCY
CIRCULATING SYSTEMS
COAL
PEAT
WOOD WASTES
FLUIDIZED-BED COMBUSTION
FLY ASH
AIR POLLUTION CONTROL
OPERATION
AIR POLLUTION
NITROGEN OXIDES
CARBON MONOXIDE
NITROUS OXIDE
FLOW VISUALIZATION