April

2008

Features

30

A natural gas turbine combustor liner cap and six fuel nozzles. Photo courtesy GE Energy.

COVER FEATURE:GasTurbinesAdapttoDynamic Market Conditions Three gasturbine OEM’stalkabout whattheir companies aredoingtomeetthechallengesoftoday’sgas-firedpower market.

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COVER STORY

How Pollutants Are Formed During Combustion (And How It Affects Control Methods) Contributing Editor Brad Buecker explains thescienceof how pollutants are formed.

Departments

4 Opinion
6 Clearing the Air
10 Managing the Plant
14 POWER-GEN @ 20
16 Startup
80 O&M Field Notes
90 Products
104 Generating Buzz
Look for our 15-month list of upcoming global
events at www.power-eng.com
46

How Clean Air Rules Deter Equipment Investment Associate Editor Steve Blankinship and Contributing Editor Robynn Andracsek examinehow Clean Air Actprovisions may bediscouragingutilities fromlowering emissionsand improvingefficiency.

52

Fan Upgrade?ConsiderThis Newenvironmental equipment, plant cyclingpatterns, noiseregulationsandmetallurgy developmentsarecausing operators to consider updatingthebackboneoftheir air handling systems.

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Power Engineering Online ( www.power-eng.com)

IsWindReliable?

Despiteitsvariableoutputandnon-dispatchability, wind canbea reliablesource ofenergy. Here’s how and why.

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Austin’s Windy Limits

The city tries tosolve the puzzleof increasing its useof wind whileprotectingitself againstresourcevariability.

72

Podcast: Changes and Challenges for the
Renewable Energy Industry

O&M Feature: Maximize That Uprate Don’toverlookbalanceofplantsystemsandequipment.

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