Apparatus for generating electrical and/or mechanical energy from at least a low grade fuel
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United States of America Patent
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-
Mar 12, 1991
Issued Date -
N/A
app pub date -
Jul 27, 1990
filing date -
Jul 3, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for generating electrical and/or mechanical energy from at least a low-grade fuel comprises a closed circuit in which steam is formed in a steam boiler fired with low-grade fuel, the steam formed in superheated in a superheater with the aid of heat originating from a heat source in which high-grade fuel is burned, the superheated steam is fed to a steam turbine in which the steam is expanded, thereby delivering work, the expanded steam is condensed in a condensor and the condensed steam is fed back to the steam boiler via a condensate degasser. The combination of forming steam with the aid of heat originating from low-grade fuel and superheating said steam with the aid of heat originating from high-grade fuel provides a process for converting fuel into electrical and/or mechanical energy with a relatively high overall efficiency.
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