Gas cofiring with western coal and low NO{sub x} burners

Technical Report · Wed Mar 01 04:00:00 EST 1995

OSTI ID:83313

Mecchia, E P; Sanyal, A; Sommer, T M ^[1]

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1. Energy and Environmental Research Corporation, Irvine, CA (United States); and others

Gas cofiring with western coal is in progress at Joppa Unit 1 of Electric Energy Inc. (EEI) to evaluate gas cofiring parameters which will improve unit performance and availability while minimizing total cost of power generation. The project, undertaken by Energy and Environmental Research Corporation, is co-sponsored by the Gas Research Institute, Trunkline Gas Company, and EEI. In compliance with the Phase 1 requirements of the Clean Air Act Amendments, low NO{sub x} burners have been installed on this 181 MW tangential fired unit and the fuel supply switched to a low sulfur western coal. A comprehensive test program has been initiated to optimize unit performance with natural gas cofiring system. During gas cofiring system commissioning and check out tests, several gas cofiring benefits have been utilized such as recovery of unit derates caused by fan limitations and loss of mill capacity. Significant cost savings were also realized during unit start-up with gas rather than oil, to provide additional heat to the primary air to increase pulverizer capacity when firing the high moisture, low heating value western coal.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (United States); Reaction Engineering International, Salt Lake City, UT (United States)
• OSTI ID: 83313
• Report Number(s): EPRI-TR--104982; CONF-9408200--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
03 NATURAL GAS
20 FOSSIL-FUELED POWER PLANTS
AIR POLLUTION CONTROL
BOILERS
BURNERS
COAL
COAL RANK
COMBUSTION
DESIGN
FOSSIL-FUEL POWER PLANTS
NATURAL GAS
NITROGEN OXIDES
PERFORMANCE
SULFUR DIOXIDE