Hydrodynamic characteristics of group D particles (paddy grains) in a conical-based spouted bed with and without draft tube

Ifa Puspasari, Siti Masrinda Tasirin, Ng Pin Pin, Zahira Yaakob

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, a laboratory scale spouted bed unit was constructed and used to study the spouted bed hydrodynamics of a paddy. Two internal arrangements were employed, namely a bed with and without a draft tube. Bed pressure drop and minimum spouting velocity were determined at different bed heights. The results showed that by introducing draft tube in the spouted bed, the minimum spouting velocity was lower than that without draft tube. The values of minimum spouting velocity were experimentally determined and compared with values predicted from existing correlation. A new and modified correlation was proposed to predict the minimum spouting velocity close to the experimental values.

Original languageEnglish
Pages (from-to)1350-1356
Number of pages7
JournalWorld Applied Sciences Journal
Volume29
Issue number11
DOIs
Publication statusPublished - 2014

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hydrodynamics
pressure drop
particle

Keywords

  • Draft tube
  • Group D particles
  • Hydrodynamic
  • Minimum spouting velocity
  • Solids circulation
  • Spouted bed

ASJC Scopus subject areas

  • General

Cite this

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abstract = "In this study, a laboratory scale spouted bed unit was constructed and used to study the spouted bed hydrodynamics of a paddy. Two internal arrangements were employed, namely a bed with and without a draft tube. Bed pressure drop and minimum spouting velocity were determined at different bed heights. The results showed that by introducing draft tube in the spouted bed, the minimum spouting velocity was lower than that without draft tube. The values of minimum spouting velocity were experimentally determined and compared with values predicted from existing correlation. A new and modified correlation was proposed to predict the minimum spouting velocity close to the experimental values.",
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AU - Puspasari, Ifa

AU - Tasirin, Siti Masrinda

AU - Pin Pin, Ng

AU - Yaakob, Zahira

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AB - In this study, a laboratory scale spouted bed unit was constructed and used to study the spouted bed hydrodynamics of a paddy. Two internal arrangements were employed, namely a bed with and without a draft tube. Bed pressure drop and minimum spouting velocity were determined at different bed heights. The results showed that by introducing draft tube in the spouted bed, the minimum spouting velocity was lower than that without draft tube. The values of minimum spouting velocity were experimentally determined and compared with values predicted from existing correlation. A new and modified correlation was proposed to predict the minimum spouting velocity close to the experimental values.

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