.Modelica.Thermal.FluidHeatFlow.Components.Valve

Information

Simple controlled valve.

Standard characteristic Kv=f (y) is given at standard conditions (dp0, rho0),

• either linear : Kv/Kv1 = Kv0/Kv1 + (1-Kv0/Kv1) * y/Y1
• or exponential: Kv/Kv1 = Kv0/Kv1 * exp[log(Kv1/Kv0) * y/Y1]

where:

• Kv0 ... min. flow @ y = 0
• Y1 .... max. valve opening
• Kv1 ... max. flow @ y = Y1

Flow resistance under real conditions is calculated by

V_flow**2 * rho / dp = Kv(y)**2 * rho0 / dp0