Coal-fired high performance power generating system. Quarterly progress report

Technical Report · Wed Jul 01 04:00:00 EDT 1992

DOI:https://doi.org/10.2172/10103368· OSTI ID:10103368

The goals of the program are to develop a coal-fired high performance power generation system (HIPPS) by the year 2000 that is capable of > 47% thermal efficiency; NO{sub x} SO {sub x} and Particulates < 25% NSPS; Cost of electricity 10% lower; coal > 65% of heat input and all solid wastes benign. In order to achieve these goals our team has outlined a research plan based on an optimized analysis of a 250 MW{sub e} combined cycle system applicable to both frame type and aeroderivative gas turbines. Under the constraints of the cycle analysis we have designed a high temperature advanced furnace (HITAF) which integrates several combustor and air heater designs with appropriate ash management procedures. Most of this report discusses the details of work on these components, and the R&D Plan for future work. The discussion of the combustor designs illustrates how detailed modeling can be an effective tool to estimate NO{sub x} production, minimum burnout lengths, combustion temperatures and even particulate impact on the combustor walls. When our model is applied to the long flame concept it indicates that fuel bound nitrogen will limit the range of coals that can use this approach. For high nitrogen coals a rapid mixing, rich-lean, deep staging combustor will be necessary. The air heater design has evolved into two segments: a convective heat exchanger downstream of the combustion process; a radiant panel heat exchanger, located in the combustor walls; The relative amount of heat transferred either radiatively or convectively will depend on the combustor type and the ash properties.

• Research Organization: United Technologies Research Center, East Hartford, CT (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-92PC91155
• OSTI ID: 10103368
• Report Number(s): DOE/PC/91155--T1; ON: DE93004952
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000
20 FOSSIL-FUELED POWER PLANTS
200102
AIR HEATERS
AIR POLLUTION CONTROL
COMBINED-CYCLE POWER PLANTS
COMBUSTION
COMBUSTORS
COST
DESIGN
ELECTRIC POWER
ENERGY ANALYSIS
GAS TURBINES
NITROGEN OXIDES
NUMERICAL DATA
OPTIMIZATION
PARTICULATES
POWER CYCLES
PROGRESS REPORT
SULFUR DIOXIDE
THERMAL EFFICIENCY