Identification of flow regimes in slot-rectangular spouted beds using pressure fluctuations

Freitas L., Dogan Ö. M., Lim C., Grace J., Bai D.

CANADIAN JOURNAL OF CHEMICAL ENGINEERING, cilt.82, sa.1, ss.60-73, 2004 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 82 Sayı: 1
  • Basım Tarihi: 2004
  • Dergi Adı: CANADIAN JOURNAL OF CHEMICAL ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.60-73
  • Anahtar Kelimeler: spouted bed, pressure fluctuations, chaos, flow regimes, SOLID FLUIDIZED-BED, TURBULENT FLUIDIZATION, CHAOTIC BEHAVIOR, HYDRODYNAMICS, VELOCITIES, PARTICLES, STABILITY, SIGNAL
  • Gazi Üniversitesi Adresli: Evet

Özet

Pressure fluctuation data recorded in slot-rectangular spouted beds of 1.44 mm diameter glass beads were analyzed with the aid of statistical and chaotic tools. The column width was maintained at 150 mm, while the thickness and slot width were both varied. It is shown that there are significant shifts in both statistical and chaos measures as the gas flow rate is increased. The results suggest that pressure fluctuations can be used to provide diagnostics of flow regime transitions in spouted beds when viewing is impossible.