Endothermic cooling of guide vanes and/or moving blades in a gas turbine
US6357217B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2000 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Jul 24, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/16
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a method for the cooling of guide vanes and/or moving blades in the turbine stages of a gas turbine plant, a cooling medium, which contains a first fuel, is fed through the interior of the guide vanes and/or moving blades to be cooled and, using a catalyst, undergoes an endothermal chemical process therein in which the first fuel is converted at least partially into a second fuel. The cooling medium containing the second fuel is used as fuel for driving the gas turbine plant after the cooling medium has flowed out of the guide vanes and/or moving blades. In such a method, a high effectiveness of the cyclic process is highly effective and the cooling of the vanes/blades is simultaneously improved. The first fuel is a methane-containing gas, in particular natural gas, and a mixture of the first fuel with steam is used as the cooling medium and leads to a reforming of the methane in the endothermal chemical process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.