Commissioning of a pilot scale fluidised bed combustor
The main purpose of this study is to perform a test and commissioning on a newly fabricated pilot scale fluidised bed combustor for the production of ash from rice husk. The combustor with the height of 6.0 mH and diameter of 0.5 mD has been designed and installed at the Faculty of Chemical and N...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/17982/1/MohdRuswadiJusohMFKM2008.pdf |
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| Summary: | The main purpose of this study is to perform a test and commissioning on a
newly fabricated pilot scale fluidised bed combustor for the production of ash from
rice husk. The combustor with the height of 6.0 mH and diameter of 0.5 mD has been
designed and installed at the Faculty of Chemical and Natural Resources, Universiti
Teknologi Malaysia. The scope of this study includes installation of the centrifugal
exhaust fan, modification of the combustor feeding system, observation on the
combustion temperature stability, oil palm shell usage as an igniter for the bed
combustor start-up and flue gas measurement from the firing of rice husk in the pilot
scale fluidised bed combustor. Under this study, a fluidising velocity of 4, 5, 6 and 7
Umf were applied for the combustion temperature stability observation on the
fluidised bed combustor. The oil palm shell obtained from the Kulai Palm Oil Mills
of Federal Land Development Authority (FELDA) Johor, were used as an igniter to
pre-heat the bed combustor in order to start-up the combustion process in a safe
manner during the experimental works. In addition, an installation of the centrifugal
exhaust fan and a modification on the feeding system was performed as a troubleshooting
measured during the study. The flue gas from the combustion of rice husk
was analysed using the MRU Gas Analyser which showed that the gas generated
consists of O2, CO2, CO, NOx and SO2 at the concentration of 7.7%, 11.2%, 0.5%,
189 ppm and 80 ppm, respectively. The newly fabricated pilot scale fluidised bed
combustor was successfully commissioned with the production of ash from the firing
of rice husk in the unit. |
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