Multi-pressure reheat combined cycle with multiple reheaters
US6220013A · kind A · utility
21Cited by
7References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1999 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Sep 13, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A multi-pressure reheat combined cycle configuration in which the HP steam turbine exhaust temperature is colder than the HP steam saturation temperature and the coldest section of the reheater is placed downstream of the high pressure evaporation section in the heat recovery steam generator gas path with respect to the direction of exhaust gas flow. When configured in this manner, the optimum reheat pressure for the cycle is lower then for a cycle with all reheating taking place upstream of the HP evaporation section in the HRSG gas path, and the cycle output and efficiency are improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.