Heat transfer to small cylinders immersed in a packed bed

Christopher Penny; David Naylor; Jacob Friedman

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Heat transfer to small cylinders immersed in a packed bed

机译：传热到浸没在填充床中的小圆柱体

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Fluidized beds have seen increasing use for heat-treating steel wires as an environmentally friendly alternative to molten lead heat-treating systems. System upsets can result in defluidization (packed bed condition) in all or portions of the bed, affecting heat transfer rates to the wires. Existing information regarding heat transfer to cylinders in a packed bed is sparse and contradictory when applied to small cylinder sizes appropriate to wire (1-10 mm). This study examines heat transfer to cylinders immersed in packed beds in size ranges appropriate to steel wire heat-treating applications. An appropriate correlation is developed and presented.

机译：已经看到流化床越来越多地用于热处理钢丝，作为熔融铅热处理系统的环保替代品。系统故障可能导致全部或部分床层发生流化（床层堆积状态），从而影响到电线的传热速率。当应用于适合于金属丝（1-10毫米）的小圆柱体时，有关填充床中圆柱体传热的现有信息很少，而且矛盾。这项研究研究了将热传递到浸没在填充床中的钢瓶中的大小，该尺寸范围适合于钢丝热处理应用。开发并提出了适当的相关性。

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来源
《International Journal of Heat and Mass Transfer》 |2010年第24期|p.5183-5189|共7页
作者
Christopher Penny; David Naylor; Jacob Friedman;
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作者单位

Ryerson University, Department of Mechanical and Industrial Engineering, 350 Victoria Street, Toronto, Ontario, Canada M5B2K3;

rnRyerson University, Department of Mechanical and Industrial Engineering, 350 Victoria Street, Toronto, Ontario, Canada M5B2K3;

rnRyerson University, Department of Mechanical and Industrial Engineering, 350 Victoria Street, Toronto, Ontario, Canada M5B2K3;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
heat transfer; packed bed;

机译：传热;填充床;

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机译：使用红外（IR）热成像技术测量圆柱填充床中的局部壁传热系数，并在以水为工作介质的同心管式换热器内随机填充圆柱颗粒
2. Local wall heat transfer coefficient measurement in a packed bed of cylinders using infrared (IR) thermography technique and application of random packing of cylindrical particles inside concentric tube heat exchangers with water as working medium [J] . Halkarni Surfarazhussain S., Sridharan Arunkumar, Prabhu S. V. Heat and mass transfer . 2019,第8期

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3. A study on heat transfer in a conical fluidized-bed reactor with an immersed cylindrical heater [J] . Abdelmotalib Hamada Mohmmed, Kim Jong Seok, Im Ik-Tae Numerical Heat Transfer, Part A. Application: An International Journal of Computation and Methodology . 2017,第7a12期

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5. Heat transfer enhancements in packed beds with symmetrical heating using flow diversion [D] . Mammadova, Shahla 2012

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机译：水平加热圆柱周围的流化和传热特性的基本研究浸入流化床中。第二次报告。颗粒性质的影响和装置促进热传递。
8. ENGINEERING DEVELOPMENT OF FLUID-BED FLUORIDE VOLATILITY PROCESSES. PART 4. FLUIDIZED-PACKED BEDS STUDIES OF HEAT TRANSFER, SOLIDS-GAS MIXING,AND ELUTRIATION. [R] . gabor,john d. mecham,william j. 1966

机译：流体氟化物挥发过程的工程开发。第4部分。流化填充床的传热，固体 - 气体混合和引出的研究。

Heat transfer to small cylinders immersed in a packed bed

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