Cogeneration system with recuperated gas turbine engine
A cogeneration system is described comprising: (a) a combustion chamber having means supplying fuel thereto; (b) a compressor for supplying compressed air to said combustion chamber; (c) a turbine rotatable about a central axis for extracting energy from the gases produced in said combustion chamber; (d) a recuperative heat exchanger including (i) first inlet means for admitting low temperature compressed air from said compressor; (ii) first outlet means for expelling said compressed air into said combustion chamber; (iii) second inlet means for admitting high temperature exhaust from said turbine; (iv) second outlet means for expelling said turbine exhaust; and (v) separator means for separating said low temperature compressed air from said high temperature exhaust and for conducting heat there between; (e) a boiler communicating with said second outlet means for recovering the waste heat from said turbine to generate additional energy; (f) a bypass duct communicating between said turbine and said boiler for allowing a selected portion of said waste heat to bypass said heat exchanger and enter said boiler directly; (g) valve means in said bypass duct for regulating the proportion of waste heat passing through said heat exchanger relative to the amount of waste heat passing through said bypass duct; and (h) control means for controlling the action of said valve means such that the temperature of gases entering said boiler is substantially constant.
- Assignee:
- Tiernay Turbines, Inc., Phoenix, AZ (United States)
- Patent Number(s):
- A; US 5212942
- Application Number:
- PPN: US 7-804048
- OSTI ID:
- 6496969
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320304* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
BOILERS
COGENERATION
COMBUSTION CHAMBERS
COMPRESSORS
CONTROL
CONTROL EQUIPMENT
DESIGN
DEUS
DUAL-PURPOSE POWER PLANTS
EQUIPMENT
FLOW REGULATORS
HEAT EXCHANGERS
MACHINERY
POWER GENERATION
POWER PLANTS
SEPARATION EQUIPMENT
STEAM GENERATION
TEMPERATURE CONTROL
TURBINES
TURBOMACHINERY
VALVES
WASTE HEAT BOILERS