Water augmented indirectly-fired gas turbine systems and method

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868548

Bechtel, Thomas F ^[1]

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1. Lebanon, PA

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.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5165239
• OSTI ID: 868548
• Country of Publication: United States
• Language: English

Related Subjects

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/