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Asymmetric diffuser—LM/TM2500
Aeroderivative gas turbine generators face special footprint and space restrictions. GE’s asymmetric diffuser has higher reliability with improved structural integrity—mitigating pressure losses downstream of the power turbine.
Up to 2%
increased output
Up to 2%
increased heat rate
Benefits
What can upgrading do for you?
- Reduced power turbine exhaust back-pressure
- Increased GT output
- Improved GT heat rate
- Increased output by up to 2%
- Improved heat rate by up to 2%
- Increased availability
- Decreased maintenance and operating costs
How we get you there
- The asymmetric diffuser is designed to be a bolt-in replacement for the current symmetric diffuser, and it bolts directly at the turbine rear frame flange interface.
- The upgrade requires either the removal of the existing exhaust collector from the package, or the removal of the engine from the package to install the new components.
- It is structurally more robust and has a better weight-to-strength ratio compared to the current diffuser.
- It comes with a wedge that is installed in the exhaust collector to deflect the exhaust flow to center of the cone, lowering turbulence.
- GE recommends customers consider replacing the current collector, tunnel and deflector with the latest advanced material (design remains same) if their current hardware has become extensively cracked and in need of significant repair, as this solution is best for the long term.
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