Flow Boiling of Highly Viscous Fluids in a Vertical Annular Tube
Flow Boiling of Highly Viscous Fluids in a Vertical Annular Tube
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高粘性流体在垂直环形管中的流动沸腾
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
R. Span
中科院分区：
文献类型：
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作者：
M. Wienecke;A. Luke;D. Gorenflo;R. Span
本文介绍了一种新型实验装置，该装置具有外径20 mm、内径10 mm的垂向环空试验段，用于高粘性混合物的下流沸腾实验。介绍了这种独特的试验台的技术特点和结构。以粘度为η 25°C = 1000 Pa s -1的硅油为模型体系，以戊烷为溶剂，进行了实验。选择流速为3 l h -1，壁温为120℃，戊烷质量分数为9.4%。实验结果与一些高粘性流体的流动沸腾模型进行了初步比较。
This article introduces a newly built test rig with a vertical annulus test section with 20 mm outer and 10 mm inner tube diameter, for flow boiling experiments with highly viscous mixtures in downward flow. The technical features and the construction of this unique test rig are described. Results from an experiment are presented, where silicon oil with a viscosity of η 25°C = 1000 Pa s –1 and pentane as solvent are used as a model system. The chosen parameters were a flow rate of 3 l h –1 , a wall temperature of 120°C and a pentane mass fraction of 9.4%. The experimental results were used for a first comparison with some models for flow boiling of highly viscous fluids.