Heat and power supply system
This patent describes improvement in a method of supplying heat and power of the type which includes feeding compressed oxidant gas from a gas compressor to a combustion chamber in which combustion of a fuel takes place, flowing high pressure and temperature combustion products from the combustion chamber to an inlet end of a main turbine system so as to supply mechanical power to a shaft to thereby drive the shaft and so as to produce low pressure and temperature exhaust from an outlet end of the main turbine system. The improvement comprises: extracting at least a portion of an intermediate pressure and temperature exhaust from a point in between the inlet and outlet ends of the main turbine system; passing the intermediate pressure and temperature exhaust through a regenerator in heat exchange relationship with the compressed oxidant gas so as to preheat the compressed oxidant gas before the oxidant gas enters the combustion chamber, thereby cooling the intermediate pressure and temperature exhaust to yield a regenerator exhaust; passing the regenerator exhaust from the regenerator to an auxiliary turbine which also drives the shaft; and flowing low pressure and temperature exhaust from the outlet end of the main turbine system to a heat exchanger so that heat is transferred from the low pressure and temperature exhaust to a fluid flowing through the heat exchanger in heat exchange relationship with the low pressure and temperature exhaust.
- Assignee:
- Phillips Petroleum Co., Bartlesville, OK (USA)
- Patent Number(s):
- US 4987735; A
- Application Number:
- PPN: US 7-445520
- OSTI ID:
- 6019716
- Country of Publication:
- United States
- Language:
- English
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320304 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
COGENERATION
DESIGN
DEUS
DUAL-PURPOSE POWER PLANTS
ENERGY TRANSFER
EXHAUST SYSTEMS
HEAT EXCHANGERS
HEAT TRANSFER
MACHINERY
POWER GENERATION
POWER PLANTS
STEAM GENERATION
TURBINES
TURBOMACHINERY