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Title: Water augmented indirectly-fired gas turbine systems and method

Abstract

An indirectly-fired gas turbine system utilizing water augmentation for increasing the net efficiency and power output of the system is described. Water injected into the compressor discharge stream evaporatively cools the air to provide a higher driving temperature difference across a high temperature air heater which is used to indirectly heat the water-containing air to a turbine inlet temperature of greater than about 1,000.degree. C. By providing a lower air heater hot side outlet temperature, heat rejection in the air heater is reduced to increase the heat recovery in the air heater and thereby increase the overall cycle efficiency.

Inventors:
 [1];  [2]
  1. Lebanon, PA
  2. (Morgantown, WV)
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
OSTI Identifier:
868548
Patent Number(s):
5165239
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01K - STEAM ENGINE PLANTS
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
water; augmented; indirectly-fired; gas; turbine; systems; method; utilizing; augmentation; increasing; net; efficiency; power; output; described; injected; compressor; discharge; stream; evaporatively; cools; air; provide; driving; temperature; difference; heater; indirectly; heat; water-containing; inlet; 000; degree; providing; hot; outlet; rejection; reduced; increase; recovery; overall; cycle; inlet temperature; heat rejection; turbine systems; temperature difference; heat recovery; power output; gas turbine; air heater; compressor discharge; outlet temperature; containing air; water injected; indirectly-fired gas; /60/

Citation Formats

Bechtel, Thomas F, and Parsons, Jr., Edward J. Water augmented indirectly-fired gas turbine systems and method. United States: N. p., 1992. Web.
Bechtel, Thomas F, & Parsons, Jr., Edward J. Water augmented indirectly-fired gas turbine systems and method. United States.
Bechtel, Thomas F, and Parsons, Jr., Edward J. Wed . "Water augmented indirectly-fired gas turbine systems and method". United States. https://www.osti.gov/servlets/purl/868548.
@article{osti_868548,
title = {Water augmented indirectly-fired gas turbine systems and method},
author = {Bechtel, Thomas F and Parsons, Jr., Edward J.},
abstractNote = {An indirectly-fired gas turbine system utilizing water augmentation for increasing the net efficiency and power output of the system is described. Water injected into the compressor discharge stream evaporatively cools the air to provide a higher driving temperature difference across a high temperature air heater which is used to indirectly heat the water-containing air to a turbine inlet temperature of greater than about 1,000.degree. C. By providing a lower air heater hot side outlet temperature, heat rejection in the air heater is reduced to increase the heat recovery in the air heater and thereby increase the overall cycle efficiency.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Patent:

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