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  • Users: phosty
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  1. phosty

    Determining Isentropic Expansion Coefficient

    I have a copy of: Shackelford, Aubry, "Using the Ideal Gas Specific Heat Ratio for Relief Valve Sizing", Chemical Engineering, pp. 54-59, November 2003. I am struggling to understand how, in the first worked example he presents (Case I), the isentropic expansion coefficient (n) of 0.746 is...
  2. phosty

    Ratio of wetted perimeter to partial volume/area

    I am looking for an equation which can relate the ratio of the wetted perimeter to the partial area (WP:PA) of a horizontal pipe part filled with liquid. I am familiar with the usual partial volume equations and use them regularly however the starting point with these is that you typically know...

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