The Provence 250 MWe unit: The largest CFB boiler ready for operation

Conference · Sat Dec 30 23:00:00 EST 1995

OSTI ID:287931

Jaud, P ^[1]; Jacquet, L ^[2]; Piedfer, O ^[3]; Jestin, L ^[4]

---

1. Electricite de France, Chatou (France). Direction des Etudes et Recherches
2. Electricite de France, La Defense (France). Direction de l`Equipement
3. Electricite de France, Saint-Denis (France). Direction des Etudes et Recherches
4. Electricite de France, Villeurbanne (France). Direction de l`Equipement

Today, the largest Circulating Fluidized Bed (CFB) project approaching operation is the 250 MWe Provence CFB boiler, located in the south of France. At such a size, the CFB technique has now reached a capacity corresponding to thermal power plants operated by utilities. This new unit, with a pant leg design, is also a very important step towards larger size i.e. 400 MWe and greater. The purpose of the Provence project was to replace the existing pulverized coal boiler unit 4, commissioned in 1967, of the Provence/Gardanne power plant, with a new CFB boiler while reusing most of the existing equipment. The 250 MWe boiler is of the superheat-reheat type, 1,050 F--1,050 F, firing local high-sulfur subbituminous coal with the possibility of co-firing high viscosity fuel oil (with a high sulfur content) up to a 50%--50% energy ratio. The first firing of the boiler is due in May 1995. This paper describes the progress in the construction of the plant and provides technical details of the new boiler and auxiliaries. Also presented is the associated R and D program designed to give a thorough evaluation of this boiler with a view to the design of larger CFBs in the future.

• OSTI ID: 287931
• Report Number(s): CONF-950522--; ISBN 0-7918-1305-3
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
02 PETROLEUM
20 FOSSIL-FUELED POWER PLANTS
ASHES
AUXILIARY SYSTEMS
CIRCULATING SYSTEMS
COCOMBUSTION
COMBUSTION PROPERTIES
DESIGN
ELECTROSTATIC PRECIPITATORS
FLUIDIZED BED BOILERS
FLUIDIZED-BED COMBUSTION
FOSSIL-FUEL POWER PLANTS
FRANCE
FUEL OILS
MATERIALS HANDLING
SIZE
SORBENT INJECTION PROCESSES
SUBBITUMINOUS COAL
SULFUR CONTENT