bilder asgard b 009

Contact

Contact person

Bjørn Helleren

Manager MMO
Mobil: +47 99 28 56 30 / 46 80 00 74

Mail: bhe@halvorsen.no

Product data

Applications/can be used with:    
LM1600, LM2500, LM2500+, PGT25, LM2500HSPT+, LM6000.

Construction /Materials    
AISI 321 and Alloy 800H.

Dimensions    
Tailor made for each application. We have delivered a 50 meter exhaust duct to Veslfrikk B. 

Output    
Low pressured drop, having a positive impact on the Gas Turbine performance.

Environmental effect    
Reduces unwanted conditions due to exhaust leakages inside modules and in areas where personnel can be exposed to hot exhaust.

Versions/Formats
Hot Casing (External thermal insulation)
Cold Casing (Internal thermal insulation)

Product specification

Applications/can be used with:    
LM1600, LM2500, LM2500+, PGT25, LM2500HSPT+, LM6000.

Construction /Materials    
AISI 321 and Alloy 800H.

Dimensions    
Tailor made for each application. We have delivered a 50 meter exhaust duct to Veslfrikk B. 

Output    
Low pressured drop, having a positive impact on the Gas Turbine performance.

Environmental effect    
Reduces unwanted conditions due to exhaust leakages inside modules and in areas where personnel can be exposed to hot exhaust.

Versions/Formats
Hot Casing (External thermal insulation)
Cold Casing (Internal thermal insulation)

Reference

References    
Statoil Visund, Troll C, Grane, Oseberg D, Heimdal, Veslefrikk, Brage

Exhaust ducts for gas turbines

Extended lifetime of exhaust systems with minimized risk of leakages
Exhaust systems guides the exhaust from the gas turbine into the atmosphere. It is mandatory to use exhaust systems behind the gas turbines as the exhaust flue gases can reach temperatures between 400 and 650 C. 

THE CHALLENGE

Exhaust ducts are under enormous strain from turbulence and pressure fluctuations from the gas turbine. Start-stops causes additional thermal stress on the exhaust system. This can lead to cracks, damages on ducts walls, faulty insulation and unwanted high surface temperature. In some cases, internal parts in the ducting can loosen and blow out of the duct exit nozzle, causing dangerous situations due to falling objects. 

There are also several health risks, such as noise heat and exhaust emissions behind the gas turbines, which can be minimized.

THE SOLUTION

The Halvorsen Exhaust Ducts for extended system life can handle 800 transient operations. It comes with patented low stress flanges which prevents crack development in rectangular duct section corners. 

Our solutions also leads to improved availability and reliability of the total gas turbine system, with less downtime and  færre helseskader. Our senior personnel has extensive experience with the largest and most used offshore gas turbines. 

 

Halvorsen is a complete EPCI provider of cost-effective products and smart technology for the global energy industry. Our solutions have clear efficiency gains for our clients when it comes to footprint, costs and the environment.