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Effect of fluidization number on the combustion of simulated municipal solid waste in a fluidized bed

Johari, Anwar and Mutahharah, M. M. and A. Kalantarifard, A. Abdul and Rozainee, M. (2010) Effect of fluidization number on the combustion of simulated municipal solid waste in a fluidized bed. In: 2nd International Conference and Exhibition on Waste to Wealth & 6th International Conference on Combustion, cineration/Pyrolysis and Emission Control (2nd W2W & 6th i-CIPEC), 26-29 July 2010, PWTC, Kuala Lumpur.

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Abstract

Combustion behavior of mixed solid waste in a fluidized bed was studied. Bed, surface and freeboard temperatures were monitored continuously for that purpose. The effect of fluidization number and air factor on the combustion behavior of mixed solid waste of high moisture content in a fluidized bed combustor was investigated. Mixed solid waste was used as a sample which was formulated from four major waste compositions found in Malaysia namely food, paper, plastic and vegetable waste (green). Combustion study was carried out in a rectangular fluidized bed with sand of mean particle size of 0.34 mm as a fluidization medium. The range of fluidization numbers investigated was 3-11U(mf). The first part of the combustion study was carried out at stoichiometric condition. Results showed that the best fluidization number was 5U(mf) in which the bed temperature was sustained in a much longer period. The second part of the study dealt with the effect of air factor on the combustion behavior conducted at 5U(mf). The chosen range of air factor was 0.4-1.2. It was revealed that the best air factor was in the range of 0.8-1. Energy balance was also performed to determine the thermal efficiency of the combustion. It was concluded that the thermal efficiency was significantly increased at higher air factor. Effects of fluidization number and air factor on the combustion of mixed solid waste in a fluidized bed.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:mixed solid waste
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:23936
Deposited By: Mrs Liza Porijo
Deposited On:19 Jun 2012 01:09
Last Modified:12 Jul 2017 07:53

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