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18 April 2006 - Foster Wheeler Energia, S.A. (FWESA), has won a $7.6m order from Endesa, Spain's largest utility, to proceed with the supply of new low-NOx burners and to upgrade the mill classifiers on Units 4 and 5 at Endesa's Compostilla II power plant in Spain.
"This is another important environmental retrofit win for Foster heeler," said Eric Svendsen, chief executive officer, Foster Wheeler Energia, S.A. "It reinforces our leadership in the Spanish environmental equipment market. In addition to demonstrating Endesa's continued confidence in Foster Wheeler's products and services, this latest award extends our long-term relationship with Endesa."
Units 4 and 5, each rated at 350 MW electric, have Foster Wheeler arch-fired boilers. Each unit is currently equipped with 24 vertical double cyclone burners and six ball mills. Each of the ball mills currently has two static classifiers. The new adjustable mill classifiers will reduce the unburned fuel loss and will allow fine-tuning of combustion. The new low-NOx burners will have preheat
nozzles and advanced overfire air ports.
The use of overfire air achieves NOx reductions beyond those of a low-NOx burner alone.
Together, these modifications will permit Endesa to meet European Union emission regulations while firing hard-to-burn local anthracite.
Endesa awarded FWESA an earlier contract in 2004 for the supply and testing of six low-NOx vertical burners and four adjustable classifiers for Compostilla Unit 4. Having achieved the expected results during the testing and evaluation period in 2005, FWESA will now complete the second stage of the retrofit (42 new burners and 8 new classifiers) under the new contract. Endesa will carry out the installation of the adjustable classifiers with the unit in service, and will install the low-NOx burners during an outage scheduled for 2007.
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