unwin_p - Unwin Formula ∆P

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3.7.1 unwin_p - Unwin Formula $∆P$

p = unwin_p(w,l,d,v)

Calculates the pressure drop of a steam pipe using the Unwin formula.

Arguments

w: Steam flow rate ( $kg/h$ ).
l: Pipe length ( $m$ ).
d: Pipe diameter ( $m$ ).
v: Specific volume ( $m3/kg$ ).

Returns Pressure drop $∆P$ ( $kPa$ ).

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