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Parametric Effects on Dryout of Propane in a Vertical Circular Mini-Channel
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.ORCID iD: 0000-0002-9902-2087
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.
2011 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This article presents dryout results of propane in a vertical circular mini channel made of stainless steel with an internal diameter of 1.70 mm and a heated length of 245 mm. The experiments are performed at three saturation temperatures of 23 oC, 33 oC and 43 oC. Mass flux is varied from 100 kg/m2s to 500 kg/m2s.The heat flux is increased in steps up to occurrence of dryout. The effect of different parameters such as mass flux, vapour quality and saturation temperature on the dryout heat flux is investigated. The results show that the dryout heat flux increases with the increase in mass flux and with the decrease of vapour quality. Almost no effect of saturation temperature on the dryout heat flux is observed. The generalised CHF correlations developed for macro and micro scale from the literature are compared with experimental results. Correlations developed by Callizo et al. (2008), Bowring (1972) and Katto and Ohno (1984) gave reasonably good predictions.

Place, publisher, year, edition, pages
2011.
Keyword [en]
Mini Channel, Dryout, Propane, CHF
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-80316OAI: oai:DiVA.org:kth-80316DiVA: diva2:496207
Conference
3rd Micro and Nano Flow Conference, August 22-24, Thessaloniki, Greece
Note
QC 20120214Available from: 2012-02-14 Created: 2012-02-09 Last updated: 2012-02-14Bibliographically approved

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CiteExportLink to record
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