Effect of plenum chamber depth in a swirling fluidized bed

Mohd Nawi, Mohd Al-Hafiz and Mohideen Batcha, Mohd Faizal and Asmuin, Norzelawati (2013) Effect of plenum chamber depth in a swirling fluidized bed. In: International Conference on Mechanical Engineering Research (ICMER2013), 1-3 July 2013, Kuantan, Pahang.

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Abstract

This paper presents the numerical investigation via Computational Fluid Dynamic (CFD) to study the effect of plenum chamber depth on air flow a distribution in a swirling fluidized bed (SFB). A total of 9 simulations were conducted for 3 plenum chamber depths of 175 mm, 350 mm and 525 mm (below the distributor) for 3 different inlets: single, double and triple inlets. Air flow distribution was analyzed based on the tangential velocity distribution ad pressure drop at the distributor outlet. Statistical parameters used in characterizing the air flow distribution were standard deviation, skewness and kurtosis together with system pressure drop. An optimum plenum chamber depth has low statistical values, implying a uniform velocity distribution inside the bed while low pressure drops are necessary to reduce energy loss in the system. The findings yield that plenum chamber with 175 mm depth with via triple inlets suffices both criteria of high uniformity and low pressure drops.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:plenum chamber; swirling fluidized bed; statistical analysis; pressure drop
Subjects:T Technology > TP Chemical technology > TP155-156 Chemical engineering
Divisions:Faculty of Mechanical and Manufacturing Engineering > Department of Plant and Automotive Engineering
ID Code:4068
Deposited By:Normajihan Abd. Rahman
Deposited On:30 Jul 2013 11:51
Last Modified:21 Jan 2015 16:07

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