Program computes fuel input, combustion temperature

Journal Article · Tue Jul 01 04:00:00 EDT 1986 · Power Eng.; (United States)

OSTI ID:6945242

Ganapathy, V

Supplementary fuel firing of turbine exhaust gases is frequently utilized in combined cycle and cogeneration projects to generate additional steam from heat recovery boilers. Typical turbine exhaust has 14-16% free oxygen before entering the combustion system. Part or all of it may be utilized to increase the final combustion temperature to desired levels. Duct burners typically raise the exhaust gas temperature to approximately 1700 F maximum. In furnace-fire heat recovery boilers the final combustion temperature could be as high as adiabatic combustion temperature, which is the temperature obtained by consuming all of the free oxygen in the exhaust gas. Natural gas is the most widely used fuel. In order to analyze the performance of the burner system and the boiler--and to calculate the cycle efficiency--the following data are required: 1. Fuel required to raise the temperature of the incoming turbine exhaust gas to a particular value. Sometimes fresh air is used instead of turbine exhaust gas; 2. Given a particular fuel input, the combustion temperature (reverse of case 1) that results; and 3. Fuel data such as density and heating value in Btu/lb and Btu/scf.

• OSTI ID: 6945242
• Journal Information: Power Eng.; (United States), Journal Name: Power Eng.; (United States) Vol. 90:7; ISSN POENA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
BOILERS
BURNERS
CHEMICAL REACTIONS
COGENERATION
COMBINED-CYCLE POWER PLANTS
COMBUSTION
COMBUSTION CONTROL
COMPUTER CALCULATIONS
COMPUTER CODES
COMPUTERIZED CONTROL SYSTEMS
CONTROL
CONTROL SYSTEMS
DEUS
EFFICIENCY
ELEMENTS
ENERGY EFFICIENCY
ENERGY RECOVERY
ENERGY SYSTEMS
FLUE GAS
FURNACES
GASEOUS WASTES
HEAT RECOVERY
MACHINERY
NONMETALS
OXIDATION
OXYGEN
PERFORMANCE
POWER GENERATION
POWER PLANTS
RECOVERY
STEAM GENERATION
STEAM TURBINES
TEMPERATURE CONTROL
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY
WASTE HEAT BOILERS
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION
WASTES