Plant with high temperature fuel cells
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United States of America Patent
Stats
-
Apr 20, 2004
Grant Date -
Jan 17, 2002
app pub date -
Jun 8, 2001
filing date -
Jul 12, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The plant contains high temperature fuel cells which form a battery (1) in which electrochemical reactions can be carried out with a fuel (6) and a gas (5) containing oxygen while producing an electrical current (8) and a hot exhaust gas flow (7) which transports waste heat. The plant has a device with the following components: a circulation (2) with a heat carrier medium (20), a first heat exchanger (21) for the exhaust gas flow in which a portion of the waste heat can be transferred to the heat carrier medium, at the output of the heat exchanger (21) a discharge conduit for the exhaust gas flow which leads to a chimney (10), with it not being permitted for the exhaust gas temperature in the chimney to exceed a predetermined value, and at least one heat sink (22), in particular in the form of a further heat exchanger, in which the waste heat which is transferred to the heat carrier medium can be removed from the circulation at least partly as surplus heat when required, with it not being possible for the surplus heat to be used either for room heating (3) and/or utility water heating (3) or for another purpose (3).
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