van Ommen R Monitoring Fluidized Bed Hydrodynamics Delft The Netherlands: Technical University of Delft 2001 10 Chaplin G Pugsley T Winters C Application of chaos analysis to pressure fluctuation data from a fluidized bed dryer containing pharmaceutical granule Powder Tech 2004 142:110–120 doi: 10 1016/j powtec 2004 05 001 11 Chaplin G Pugsley T Winters C Application of Hamzehei M CFD modeling and simulation of hydrodynamics in a fluidized bed dryer with experimental validation ISRN Mech Eng 2011 2011: 1–9 Google Scholar Hattori H Takeda K Side-outlet spouted bed with inner draft-tube for small-sized solid particles J Chem Eng Japan 1978 11: 125–129 Crossref Google Scholar He YL Qin SZ Lim CJ

PSE: Events

A case study on a six-segmented fluidized bed dryer (FBD) is used to illustrate the concept A co-development strategy with PSE is underway to ensure the value realization of the smart operations implementation Mathematical modelling of spray impingement and film formation on pharmaceutical tablets during film-coating Harry Christodoulou UCL The application of coating films is an important

Monitoring of fluidized beds hydrodynamics using recurrence quantification analysis Conditional monitoring of moisture content in a fluidized bed dryer by the acoustic emission signature Korean Journal of Chemical Engineering January 7 2012 Other authors See publication Study of transition velocity from bubbling to turbulent fluidisation by recurrence plots analysis on pressure

23/06/1981Method and apparatus for the detection of stagnant regions in a fluidized bed or in pneumatic conveying lines United States Patent 4275353 Abstract: A probe electrode is mounted across the wall of a fluidized bed column or solid particles feed thereto and an air gap between the probe electrode and a neon lamp causes lamp flashes when the particles are normally circulating and allows

Non-intrusive monitoring of bubbles in a gas???solid fluidized bed using vibration signature analysis M Abbasi R Sotudeh-Gharebagh N Mostoufi MJ Mahjoob Powder Technology 196 (3) 278-285 2009 52: 2009: Nonintrusive characterization of fluidized bed hydrodynamics using vibration signature analysis M Abbasi R Sotudeh???Gharebagh N Mostoufi R Zarghami MJ Mahjoob AIChE Journal 56 (3

2/16 (ﻲﻓﻮﺘﺴﻣ ﺮﺘﻛد يﺎﻗآ ﺎﺑ كﺮﺘﺸﻣ) ﺖﻔﻧ ﺖﻌﻨﺻ ياﺮﺑ ﻲﺼﺼﺨﺗ يﺎﻬﻫﺎﮔرﺎﻛ(ﻚﻴﻣﺎﻨﻳد و ﺎﻳﺎﭘ ،ﻲﻧﺎﻣﺪﻘﻣ) aspen ﻚﻤﻛ ﻪﺑ ﺪﻨﻳآﺮﻓ يزﺎﺳ ﻪﻴﺒﺷ 1 (ﻚﻴﻣﺎﻨﻳد و ﺎﻳﺎﭘ ،ﻲﻧﺎﻣﺪﻘﻣ) hysys ﻚﻤﻛ ﻪﺑ ﺪﻨﻳآﺮﻓ يزﺎﺳ

Items where Division is Engineering and Technology

Bagria Bajrang Lal (2011) Hydrodynamics of inverse liquid fluidized bed Studies on Batch Drying Characteristics and Transfer Coefficients of the Food Grains and Vegetables in A Fluidized Bed Dryer using Ann Method MTech by Research thesis K Kalsi Shubhkant (2011) Studies of Washing Characteristics of Low Grade Coal and Design of a Coal Washing Plant BTech thesis Kaushik Vishal

Monitoring of fluidized beds hydrodynamics using recurrence quantification analysis Conditional monitoring of moisture content in a fluidized bed dryer by the acoustic emission signature Korean Journal of Chemical Engineering January 7 2012 Other authors See publication Study of transition velocity from bubbling to turbulent fluidisation by recurrence plots analysis on pressure

Bed temperatures are also very important for monitoring and control since the free movement of particles favors heat transfer both within the bed and between the bed and adjoining surfaces Thus it is important in a fluidized bed that solid materials can be readily added to or removed from a fluidized bed while the counteracting circulation of solids and gas is being maintained at all

Experimental studies and Simulation of three phase fluidized bed reactor Using CFD 2008 Fluidized bed dryer with internals 2009 Studies on Photo degradation of Phenol by using UV and visible light Energy auditing in iol fired boiler in M/s TDCL trichy 2009 Simulation of absorption column for capture of CO 2 from flue gas 2009 Air and water interaction 2009 An experimental

Monitoring fluidized bed dryer hydrodynamics using pressure fluctuations and electrical capacitance tomography View/ Open gec564phd pdf (1 320Mb) Date 2005-01-06 Author Chaplin Gareth Edgar Type Thesis Degree Level Doctoral Metadata Show full item record Abstract As part of the production of certain solid-dosage pharmaceuticals granulated ingredients are dried in a batch fluidized

Monitoring fluidized bed dryer hydrodynamics using pressure fluctuations and electrical capacitance tomography By Gareth Edgar Chaplin Abstract As part of the production of certain solid-dosage pharmaceuticals granulated ingredients are dried in a batch fluidized bed dryer Currently the determination of the completion of the drying process is accomplished through measurements of

FluidizedExpanded bed adsorption (EBA) has received increasing attentions as an effective technique for the purification of proteins directly from cell homogenates or fermentation broths in downstream processing To widely extend the EBA technology in biological industries better understanding of the expanded–bed behavior is necessary to maximize its efficient applications In this study

Fluidized bed dryer (FBD) has been used widely for drying various products due to its many advantages including high drying rate due to an excellent gas-solid contact high thermal efficiency relatively low cost of operation etc [1] In fluidized bed drying hot air is forced through a distributor into bed at a sufficiently high velocity to overcome the gravitational forces on the products

Rahmat Sotudeh

Monitoring of fluidized beds hydrodynamics using recurrence quantification analysis Conditional monitoring of moisture content in a fluidized bed dryer by the acoustic emission signature Korean Journal of Chemical Engineering January 7 2012 Other authors See publication Study of transition velocity from bubbling to turbulent fluidisation by recurrence plots analysis on pressure

23/06/1981Method and apparatus for the detection of stagnant regions in a fluidized bed or in pneumatic conveying lines United States Patent 4275353 Abstract: A probe electrode is mounted across the wall of a fluidized bed column or solid particles feed thereto and an air gap between the probe electrode and a neon lamp causes lamp flashes when the particles are normally circulating and allows

Fluidized bed dryer (also called fluid bed dryer) is a kind of equipment used extensively in the pharmaceutical industries to reduce the moisture content of pharmaceutical powder and granules The equipment works on a principle of fluidization of the feed materials In fluidization process hot air is introduced at high pressure through a perforated bed of moist solid particulate The wet

In a recent study Ali et al instead of monitoring the bed height like most previous studies recorded global pressure transient data to analyze the collapse dynamics of pulsed fluidized bed The pulsation frequency in their study was kept fixed at 0 1 Hz From the collapse data authors computed the effective terminal velocity of the powder using the model of Nie and Liu in conjunction

bed dryers Key words: Fluidized Bed Dryer Moisture Content Online Monitoring Acoustic Emission INTRODUCTION According to the interesting advantages of fluidized beds many researchers have investigated these dryer applications in new indus-trial plants and design aspects of these beds [1-3] Several methods have been reported in the literature for monitoring fluidized bed hydrodynamics

Physical characteristics of fluidized beds via pressure fluctuation analysis Physical characteristics of fluidized beds via pressure fluctuation analysis Hartman Miloslav Trnka Otakar 2008-07-01 00:00:00 Introduction A fluidized bed is one of the types of reactors employed in industry for carrying out gas–solid reactions and physical operations such as drying and granulation 1 2 Its

Study on collapse process in gas-solid fluidized bed based on acoustic signals: HAN Xiao ZHOU Ye-feng HUANG Zheng-liang GU Yu-bin WANG Jing-dai YU Huan-jun YANG Yong-rong: State Key Laboratory of Chemical Engineering Department of Chemical and Biochemical Engineering Zhejiang University Hangzhou 310027 China

In a recent study Ali et al instead of monitoring the bed height like most previous studies recorded global pressure transient data to analyze the collapse dynamics of pulsed fluidized bed The pulsation frequency in their study was kept fixed at 0 1 Hz From the collapse data authors computed the effective terminal velocity of the powder using the model of Nie and Liu in conjunction

This paper presents computational fluid dynamics (CFD) studies to characterize air velocity distribution for various bed configurations in a swirling fluidized bed (SFB) Unlike conventional fluidized beds a SFB provides radial mixing which is desirable is fluidization Three velocities components were observed the tangential velocity radial velocity and axial velocity

A thin rectangular gas fluidized bed، constructed from acrylic glass، with a vertical jet nozzle located at the centre of the distributor was used in the work A high speed camera with a speed up to 10،000 frames per second was used to observe the jet behavior Analysis of large quantity of images allowed determination of solids flux، solids Velocity and solids concentration in the jet

Briens L Smith R and Briens C (2005) "Monitoring of a Rotary Dryer Using Acoustic Emissions" "Particulate processes in the pharmaceutical industry" Montreal June 2005 Federica Portoghese Franco Berruti Cedric Briens "Continuous on-line measurement of solid moisture content during fluidized bed

Monitoring Fluidized Bed Drying of Pharmaceutical Granules Nov 09 2010 Alternatively temperature may be used to monitor fluidized bed drying The temperature of the product within the bed or the air leaving the fluidized bed dryer can be measured During drying the air and product temperatures are cooled as a result of the evaporation of water from the granules