Gas turbine power plant with supersonic shock compression ramps
Abstract
A gas turbine engine. The engine is based on the use of a gas turbine driven rotor having a compression ramp traveling at a local supersonic inlet velocity (based on the combination of inlet gas velocity and tangential speed of the ramp) which compresses inlet gas against a stationary sidewall. The supersonic compressor efficiently achieves high compression ratios while utilizing a compact, stabilized gasdynamic flow path. Operated at supersonic speeds, the inlet stabilizes an oblique/normal shock system in the gasdynamic flow path formed between the rim of the rotor, the strakes, and a stationary external housing. Part load efficiency is enhanced by use of a lean pre-mix system, a pre-swirl compressor, and a bypass stream to bleed a portion of the gas after passing through the pre-swirl compressor to the combustion gas outlet. Use of a stationary low NOx combustor provides excellent emissions results.
- Inventors:
-
- Bellevue, WA
- San Diego, CA
- Kirkland, WA
- Issue Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 985406
- Patent Number(s):
- 7434400
- Application Number:
- 11/102,937
- Assignee:
- Lawlor, Shawn P. (Bellevue, WA); Novaresi, Mark A. (San Diego, CA); Cornelius, Charles C. (Kirkland, WA)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04D - NON-POSITIVE-DISPLACEMENT PUMPS
- DOE Contract Number:
- FC026-00NT40915
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 20 FOSSIL-FUELED POWER PLANTS
Citation Formats
Lawlor, Shawn P, Novaresi, Mark A, and Cornelius, Charles C. Gas turbine power plant with supersonic shock compression ramps. United States: N. p., 2008.
Web.
Lawlor, Shawn P, Novaresi, Mark A, & Cornelius, Charles C. Gas turbine power plant with supersonic shock compression ramps. United States.
Lawlor, Shawn P, Novaresi, Mark A, and Cornelius, Charles C. Tue .
"Gas turbine power plant with supersonic shock compression ramps". United States. https://www.osti.gov/servlets/purl/985406.
@article{osti_985406,
title = {Gas turbine power plant with supersonic shock compression ramps},
author = {Lawlor, Shawn P and Novaresi, Mark A and Cornelius, Charles C},
abstractNote = {A gas turbine engine. The engine is based on the use of a gas turbine driven rotor having a compression ramp traveling at a local supersonic inlet velocity (based on the combination of inlet gas velocity and tangential speed of the ramp) which compresses inlet gas against a stationary sidewall. The supersonic compressor efficiently achieves high compression ratios while utilizing a compact, stabilized gasdynamic flow path. Operated at supersonic speeds, the inlet stabilizes an oblique/normal shock system in the gasdynamic flow path formed between the rim of the rotor, the strakes, and a stationary external housing. Part load efficiency is enhanced by use of a lean pre-mix system, a pre-swirl compressor, and a bypass stream to bleed a portion of the gas after passing through the pre-swirl compressor to the combustion gas outlet. Use of a stationary low NOx combustor provides excellent emissions results.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {10}
}