A dataset of steam condensation over a double enhanced tube bundle under vacuum

Low pressure steam condensation on a double enhanced copper nickel tube bundle under loaded conditions. Energy balance indicates the accuracy of the dataset to within 10%. Checks on shell side measurements indicate they are of good quality. A comparison is made with the Nusselt model on plain copper...

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Bibliographic Details
Published in:Applied thermal engineering 2004-06, Vol.24 (8), p.1381-1393
Main Authors: Ooi, T.H., Webb, D.R., Heggs, P.J.
Format: Article
Language:English
Subjects:
Applied sciences
Condensation
Dataset
Energy
Energy. Thermal use of fuels
Enhancement
Exact sciences and technology
Heat transfer
Theoretical studies. Data and constants. Metering
Vacuum
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Summary:Low pressure steam condensation on a double enhanced copper nickel tube bundle under loaded conditions. Energy balance indicates the accuracy of the dataset to within 10%. Checks on shell side measurements indicate they are of good quality. A comparison is made with the Nusselt model on plain copper tubes and with data from previous plain stainless steel tubes. Previous research on steam condensation indicates the tube side resistance is usually dominant. However, on the double enhanced tube bundle, the condensate film resistance is controlling. There is no marked improvement by the double enhanced tubes while using water as the process fluid. It is postulated that high surface tension fluids, such as water, cause fin inundation (thicker condensate film) and negates any heat transfer enhancement.
ISSN:1359-4311
DOI:10.1016/j.applthermaleng.2003.12.019