Efficient gas turbines by air cooling and pressure drop ... - Bilfinger
Efficient gas turbines by air cooling and pressure drop ... - Bilfinger
Efficient gas turbines by air cooling and pressure drop ... - Bilfinger
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<strong>Bilfinger</strong> Gerber GmbH<strong>Efficient</strong> <strong>gas</strong> <strong>turbines</strong> <strong>by</strong> <strong>air</strong> <strong>cooling</strong> <strong>and</strong><strong>pressure</strong> <strong>drop</strong> optimizationMichael Mangel | Hannover Messe 201309.04.2013
Environmental protection <strong>and</strong> energy dem<strong>and</strong>Our modern world requires more<strong>and</strong> more energy. At the same time,we want to protect our environmentmore <strong>and</strong> more. To find a waybetween the environment protection<strong>and</strong> the required energy it isnecessery that the modern powerplants have to operated with thehighest possible efficiency.<strong>Efficient</strong> <strong>gas</strong> <strong>turbines</strong> <strong>by</strong> <strong>air</strong> <strong>cooling</strong> <strong>and</strong> <strong>pressure</strong> <strong>drop</strong> optimization page 2
Construction of a modern combined cycle power plant<strong>by</strong>pass silencer<strong>by</strong>pass silencercombustion<strong>air</strong> intakesilencer<strong>air</strong> intakefilter housewith <strong>cooling</strong>systemAll these necessary soundproofinginternals affect the efficiency of a<strong>gas</strong> turbine.exhaust <strong>gas</strong> silencer<strong>air</strong> intakeductexhaust duct<strong>Efficient</strong> <strong>gas</strong> <strong>turbines</strong> <strong>by</strong> <strong>air</strong> <strong>cooling</strong> <strong>and</strong> <strong>pressure</strong> <strong>drop</strong> optimizationpage 3
Opportunities to increase efficiencyIn order to increase the efficiency ofa combined cycle power plant, thereare two options with our technology:▪ Installing a Cooling System▪ Optimized design of the noiseprotection system.<strong>Efficient</strong> <strong>gas</strong> <strong>turbines</strong> <strong>by</strong> <strong>air</strong> <strong>cooling</strong> <strong>and</strong> <strong>pressure</strong> <strong>drop</strong> optimizationpage 4
Cooling system optimization▪ A reduction of the <strong>air</strong> inlettemperature results in an efficiencyincrease, which in turn leads to adecrease in heating rate▪ The reduction in temperatureresults as well in a net power gain▪ The amount of performanceimprovement depends greatly onthe type of turbine used. On theright you can see the influence in aRolls-Royce Trent 60 <strong>gas</strong> turbine.<strong>Efficient</strong> <strong>gas</strong> <strong>turbines</strong> <strong>by</strong> <strong>air</strong> <strong>cooling</strong> <strong>and</strong> <strong>pressure</strong> <strong>drop</strong> optimizationpage 5
Cooling systemReducing the temperature to 20°Kcan increase the efficiency <strong>by</strong> 5%<strong>and</strong> power <strong>by</strong> 20%.<strong>Efficient</strong> <strong>gas</strong> <strong>turbines</strong> <strong>by</strong> <strong>air</strong> <strong>cooling</strong> <strong>and</strong> <strong>pressure</strong> <strong>drop</strong> optimization page 6
Optimized designBy flow simulations, the noiseprotection internals are designed<strong>pressure</strong> <strong>drop</strong> optimized.<strong>Efficient</strong> <strong>gas</strong> <strong>turbines</strong> <strong>by</strong> <strong>air</strong> <strong>cooling</strong> <strong>and</strong> <strong>pressure</strong> <strong>drop</strong> optimization page 7
Effects of an optimized designA reduction of the <strong>pressure</strong> <strong>drop</strong>of 100 Pa increases the efficiencyof a <strong>gas</strong> turbine to about 0.12%.<strong>Efficient</strong> <strong>gas</strong> <strong>turbines</strong> <strong>by</strong> <strong>air</strong> <strong>cooling</strong> <strong>and</strong> <strong>pressure</strong> <strong>drop</strong> optimization page 8
The influence of the efficiency of the CO 2 emissionsSpecific CO 2 emissions for different fuels,depending on the net efficiencyGraphical representation of therelationship between efficiency<strong>and</strong> CO 2 – emissions.Source: Benesch<strong>Efficient</strong> <strong>gas</strong> <strong>turbines</strong> <strong>by</strong> <strong>air</strong> <strong>cooling</strong> <strong>and</strong> <strong>pressure</strong> <strong>drop</strong> optimizationpage 9
<strong>Efficient</strong> <strong>gas</strong> <strong>turbines</strong> <strong>by</strong> <strong>air</strong> <strong>cooling</strong> <strong>and</strong> <strong>pressure</strong><strong>drop</strong> optimizationTogether for a “greener environment”Thank you for your attention<strong>Efficient</strong> <strong>gas</strong> <strong>turbines</strong> <strong>by</strong> <strong>air</strong> <strong>cooling</strong> <strong>and</strong> <strong>pressure</strong> <strong>drop</strong> optimization page 10
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