OPTIMIZATION OF SOLID CIRCULATION RATE IN COMPARTMENTED FLUIDIZED BED GASIFIER FOR POWER GENERATION

Autor: V. S. Chok, S. K. Wee, M. Z. Mohd. Ariffin, A. Gorin, H. B. Chua, H. M. Yan, Nader Barsoum, Sermsak Uatrongjit, Pandian Vasant
Rok vydání: 2008
Předmět:
Zdroj: AIP Conference Proceedings.
ISSN: 0094-243X
DOI: 10.1063/1.3008684
Popis: The present paper reports the optimization of solid circulation rate (SCR) in Compartmented Fluidized Bed Gasifier (CFBG), an indirectly heated fluidized bed that incorporates two sets of v-valves and risers to control the solid circulation across the two compartments, i.e. combustor and gasifier of a pilot plant scale (the height and ID are 1.8m and 0.66m respectively). Sand was used as inert fluidized by air. Four operating variables were studied i.e. bed height, riser, v-valve and main bed flowrate. Based on 2 4 full factorial design of experiment in Yates' algorithm, at confidence level ≥95%, ANOVA analysis has revealed six important effects. The steepest ascent method was applied on linear regression generated from these effects to design the subsequent optimization experiments. The optimum values of SCR have been estimated for both low and high bed level at specific operating parameters.
Databáze: OpenAIRE