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Kesselanfahrt<br />
Model building principles<br />
• This setup h<strong>as</strong> a very efficient heat transfer due to boiling<br />
and condensation.<br />
• All parts of the system which are in contact with the<br />
saturated liquid-vapor mixture will be in thermal equilibrium.<br />
• Energy stored in the system and water is rele<strong>as</strong>ed or<br />
absorbed very rapidly when the pressure changes.<br />
• The rapid rele<strong>as</strong>e of energy ensures that different parts of<br />
the boiler change their temperature in the same way.<br />
• Therefore low-order dynamics are sufficient!<br />
• Model consits fo global m<strong>as</strong>s and energy balances.
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