.ThermoPower.Water.Accumulator

Information

This model describes a water-gas accumulator (the gas is modeled as ideal bi-atomic).

Water flows in and out through the interfaces at the component bottom (flow reversal supported).

The gas is supposed to flow in at constant temperature (parameter Tgin) and with variable flow-rate (GasInfl signal port), and to flow out by a valve operating in choked condition; the valve coefficient is determined by the working point at full opening (wg_out0,Tg0, Pg0) while the valve opening (in the range 0-1) is an input signal (OutletValveOpening signal port).

Dimensional parameters

• V: accumulator total volume;
• Vl0: volume occupied by water at the nominal level (reference value);
• zl0: height of water nominal level above the water connectors;
• A: cross-sectional area at actual water level;

Contents

Revisions

• 30 May 2005 by Francesco Casella:
  Initialisation support added.
• 16 Dec 2004 by Francesco Casella:
  Standard medium definition added.
• 18 Jun 2004 by Francesco Casella:
  Adapted to Modelica.Media.
• 5 Feb 2004 by Francesco Schiavo:
  First release.