Mahle International Gmbh

Voith Turbo Gmbh Co. Kg

Amovis Gmbh

Steamdrive Gmbh

Jörg Collisi

Michael Hoetger

Stephan Bartosch

Jurgen Berger

Jürgen Berger

The invention relates to the use of a working medium in steam power plants having a steam generator for generating working medium vapor, a pump for generating an increased pressure in the working medium vapor, an expansion machine for generating mechanical and/or electrical work by expansion of the working medium from an elevated pressure to a lower pressure level under working conditions and a condenser for condensing the working medium, wherein the working medium contains a lubricant. The invention is characterized in that the working medium contains acetone and a lubricant.

Working medium mixture for steam engines

The invention relates to an arrangement for exhaust gas heat utilization comprising a steam generator arrangement () to which exhaust gas is applied, in which heat contained in the exhaust gas can be transferred to a working medium for further utilization, characterized by a heat accumulator () to which the exhaust gas can be applied, and control means for controlling exhaust gas partial flows according to a value representing the available heat energy of the exhaust gas by the heat accumulator and the steam generator arrangement. The arrangement is operated by means of a method using the following steps: a) applying exhaust heat to a steam generator arrangement; b) if more exhaust heat is available than required for the steam generation: diverting an exhaust gas partial flow into a heat accumulator; c) if less exhaust gas heat is available than required for the steam generation, and if the temperature of the heat accumulator is higher than the temperature of the exhaust gas entering into the arrangement: conducting the exhaust gas flow through the heat accumulator and subsequently through the steam generator arrangement.

Arrangement for exhaust gas heat utilization

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Berlin, Germany

Jörg Collisi