A mathematical model for metastable condition determination in highly flashing liquid flows through expansion devices
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Artigo
Date
2012
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Nuclear Engineering and Design
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2
Authors
Angelo E.
Angelo G.
Andrade D.A.
Angelo G.
Andrade D.A.
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Volume Title
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Abstract
The determination of the metastability condition in fluid flows through singularities (expansion devices) when flashing occurs is the key to determine the mass flow rate going through devices when there is a great pressure difference between upstream and downstream. An application of the evaporation waves considered together with a maximizing condition for the pressure jump through the wave to determine the metastable state is presented. The model results are compared to several outflows reported in the literature indicating values within engineering standards for those flows in which fluids are highly superheated (highly expanded flashing liquid jets). © 2011 Elsevier B.V. All rights reserved.
Description
Keywords
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Engineering standards , Expansion devices , Flashing liquid jets , Flashing liquids , Mass flow rate , Meta-stable condition , Meta-stable state , Metastabilities , Model results , Pressure differences , Pressure jumps