.TRANSFORM.Fluid.Machines.BaseClasses.SteamTurbineBase

Information

This base model contains the basic interface, parameters and definitions for steam turbine models. It lacks the actual performance characteristics, i.e. two more equations to determine the flow rate and the efficiency.

This model does not include any shaft inertia by itself; if that is needed, connect a Modelica.Mechanics.Rotational.Inertia model to one of the shaft connectors.

Modelling options

The following options are available to calculate the enthalpy of the outgoing steam:

• explicitIsentropicEnthalpy = true: the isentropic enthalpy h_out_iso is calculated by the Medium.isentropicEnthalpy function.
• explicitIsentropicEnthalpy = false: the isentropic enthalpy is given equating the specific entropy of the inlet steam steam_in and of a fictional steam state steam_iso, which has the same pressure of the outgoing steam, both computed with the function Medium.specificEntropy.

Contents

Name	Description
Medium	Medium in the component
Eta_wetSteam	Isentropic efficiency

Revisions

• 20 Apr 2005 by Francesco Casella:
  First release.
• 5 Oct 2011 by Francesco Casella:
  Small changes in alias variables.