Plant with high temperature fuel cells
US6723459B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2001 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Sep 29, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S429/901
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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, andat 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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.