期刊
CHEMICAL ENGINEERING JOURNAL
卷 259, 期 -, 页码 90-106出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2014.07.107
关键词
Multiphase flow; Particle image velocimetry; Digital image analysis; Infrared thermography; Fluidized beds; Heat transfer
资金
- European Research Council - Belgium [247298]
- Dutch Technology Foundation STW, applied science division of NWO
- Technology Program of the Ministry of Economic Affairs in The Netherlands
- European Research Council (ERC) [247298] Funding Source: European Research Council (ERC)
A new measuring technique for studying heat transfer in gas-solid fluidized beds is proposed using infrared (IR) thermography. An infrared camera is coupled with a visual camera to simultaneously record images to give instantaneous thermal and hydrodynamic data of a pseudo 2D fluidized bed. The established techniques: digital image analysis (DIA) and particle image velocimetry (PI V) are combined with IR thermography to obtain combined quantitative (i.e. hydrodynamic and thermal) data sets. In this work, the calibration procedure and the methods that are used to combine the data obtained by the different techniques are discussed. The combined technique provides insightful information on the heat transfer in a fluidized bed for varying particle size, aspect ratio and background (or fluidization) gas velocity. (C) 2014 Elsevier B.V. All rights reserved.
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