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Study of Residence Time Distribution of Rough Rice in a Plug Flow Fluid Bed Dryer

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  • 발행기관
    보안공학연구지원센터(IJAST) 바로가기
  • 간행물
    International Journal of Advanced Science and Technology 바로가기
  • 통권
    Vol.48 (2012.11)바로가기
  • 페이지
    pp.103-114
  • 저자
    Majid Khanali, Shahin Rafiee, Ali Jafari, Alireza Banisharif
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A206832

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원문정보

초록

영어
Due to the motion of gas-bubbles and the particles back-mixing, the particles flow pattern through the plug flow fluid bed dryer deviates from the ideal plug flow and is considered as a dispersed plug flow. In this study, the residence time distribution (RTD) characteristics, flow pattern, and dispersion coefficient of rough rice in a plug flow fluid bed dryer under various experimental conditions were investigated. The effects of solid feed rate (46, 96, and 135 g/min), weir height (5 and 10 cm), and inlet solid moisture content (10 and 30% d.b) on RTD were studied using the pulse input of tracer (dye-coated rough rice). The flow of particles in the dryer is a dispersed plug flow with large deviation from ideal plug flow. The values of dispersion coefficient range from 2.60×10−4 to 4.50×10−4 m2/s over the investigated conditions. The flow in the dryer approaches plug flow with increase in the solid feed rate, decrease in the weir height, and increase in the inlet solid moisture content.

목차

Abstract
 1. Introduction
 2. Materials and Methods
  2.1. Materials
  2.2 Plug Flow Fluidized Bed Dryer
  2.3 Determination of RTD
  2.4 Residence Time Distribution Analysis
 3. Results and Discussion
  3.1 RRD Characteristics
  3.2 Effect of Solid Feed Rate on RTD
  3.3 Effect of Solid Feed Rate on Cumulative Residence Time Distribution
  3.4 Effect of Weir Height on RTD
  3.5 Effect of Inlet Solid Moisture Content on RTD
  3.6 Comparison of Mean and Linear Residence Times
 4. Conclusions
 Acknowledgment
 References

키워드

Dispersion Plug Flow Residence Time Rough Rice Fluid Bed Dryer

저자

  • Majid Khanali [ Department of Agricultural Machinery Engineering, Faculty of Agricultural Engineering and Technology, School of Agriculture and Natural Resources, University of Tehran, Iran ] Corresponding author
  • Shahin Rafiee [ Department of Agricultural Machinery Engineering, Faculty of Agricultural Engineering and Technology, School of Agriculture and Natural Resources, University of Tehran, Iran ]
  • Ali Jafari [ Department of Agricultural Machinery Engineering, Faculty of Agricultural Engineering and Technology, School of Agriculture and Natural Resources, University of Tehran, Iran ]
  • Alireza Banisharif [ College of engineering, school of Chemical Engineering, University of Tehran, Tehran, Iran ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    보안공학연구지원센터(IJAST) [Science & Engineering Research Support Center, Republic of Korea(IJAST)]
  • 설립연도
    2006
  • 분야
    공학>컴퓨터학
  • 소개
    1. 보안공학에 대한 각종 조사 및 연구 2. 보안공학에 대한 응용기술 연구 및 발표 3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최 4. 보안공학 기술의 상호 협조 및 정보교환 5. 보안공학에 관한 표준화 사업 및 규격의 제정 6. 보안공학에 관한 산학연 협동의 증진 7. 국제적 학술 교류 및 기술 협력 8. 보안공학에 관한 논문지 발간 9. 기타 본 회 목적 달성에 필요한 사업

간행물

  • 간행물명
    International Journal of Advanced Science and Technology
  • 간기
    월간
  • pISSN
    2005-4238
  • 수록기간
    2008~2016
  • 십진분류
    KDC 505 DDC 605

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