EXPERIMENTAL RESEARCH OF PRESSURE DROP IN PACKED BEDS OF MONOSIZED SPHERES A NOVEL CORRELATION FOR PRESSURE DROP CALCULATION
作者: Mirjana S. Stamenić
刊名: Thermal Science, 2018, Vol.21 (Supplement), pp.S717-S724
来源数据库: Society for Thermal Engineers of Serbia
DOI: https://doi.org/10.2298/TSCI161025327S
关键词: Packed bedMonosized spheresFriction factorPressure dropBed porosityLaminar and turbulent flow
原始语种摘要: Flow through packed beds of spheres is a complex phenomenon and it has been extensively studied. Although, there is many different correlations there is still no reliable universal equation for prediction of pressure drop. The paper presents the results of experimental research of pressure drop in packed bed of monosized spheres of three different diameters, 8, 11, and 13 mm set within cylindrical vessel of diameter dk = 74 mm, and two different heights of packed bed, hs = 300 and 400 mm. It has been proposed modification of widely used Ergun’s equation in the form of fp = [150+1.3•(Rep/(1-ε))]•(1-ε)2/(ε3×Rep) and new correlation fp = 1/[(27.4-25700•dh)/Rep+0.545+6.85•dh] for pressure drop calculation in simple and convenient form for hand and computer calculations. For total number of...
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关键词翻译
关键词翻译
  • correlation 对比
  • proposed 建议的
  • total 总和
  • still 
  • three 
  • standard 标准
  • number 号码
  • spheres 球状骨针
  • deviation 偏差
  • widely 广泛地