Industries: Power generation
Noise and emission control for gas turbines, reciprocating engines and CHP plant, engineered from intake to stack so the prime mover meets its permit and boundary limits without losing output.
What we deliver
Whether the prime mover is a heavy-duty gas turbine, an aero-derivative, or a bank of reciprocating engines, the exhaust and intake train decides whether the plant clears its emission permit and its boundary noise consent. Axces engineers the complete train: intake silencing, SCR DeNOx and oxidation catalysts, exhaust silencing, diffusers and the stack itself.
Each element is sized against your machine data, fuel and duty cycle. Flow, catalyst space velocity, insertion loss and back-pressure are modelled together, so the system meets NOx, CO and dB(A) limits while keeping back-pressure inside the turbine or engine manufacturer’s budget, output and heat rate protected.
Assemblies are fabricated to the tag list, flange standard and outage window the plant runs to, and shipped with the emission and acoustic test data the permitting authority will require at commissioning.
Products for power generation
Six core assemblies cover the prime-mover exhaust and intake train, each specified against your machine data, permit limits and site acoustics.
Gas turbine
Intake, exhaust and bypass silencing for gas-turbine packages, sized to the machine and the boundary limit.
Learn more
Silencer
Reactive and absorptive silencing for reciprocating-engine exhaust, with controlled back-pressure.
Learn more
SCR system
Selective catalytic reduction sized to turbine or engine flow and temperature for 95 %+ NOx removal.
Learn more
Stack
Self-supporting and guyed stacks engineered for plume rise, dispersion and the site wind and seismic loads.
Learn more
Diffuser
Diffusers that recover static pressure and control discharge velocity at the stack exit.
Learn more
Particulate
Diesel particulate filtration for engine plant where PM and visible-smoke limits apply.
Learn moreWhy Axces
Five reasons developers, OEMs and operators specify Axces for prime-mover exhaust and acoustics.
Our approach
A four-step process that keeps emission, acoustic and schedule risk off the critical path.
We take your turbine or engine data, permit limits and site acoustics and define back-pressure, NOx and insertion-loss targets.
Flow, catalyst space velocity and attenuation are simulated across the train so the plant clears limits before fabrication.
Assemblies and the stack are built to your tag list, flange standard and delivery week, with full traceability.
We support installation and witness testing, handing over the emission and acoustic data the authority requires.
Industry context
Tighter limits and a more flexible grid are changing what an exhaust and emission system has to deliver.
IED / BREF and national permits keep lowering emission thresholds for stationary turbines and engines.
Frequent starts and load-following for balancing duty stress catalysts and silencing designed for steady base load.
Plants near housing must hold strict boundary dB(A) limits across the whole operating range.
Speed-to-power and short outages leave little slack; systems must arrive ready, on the delivery week.
From the knowledge hub
The acoustic challenges of gas turbine intake and exhaust noise, and how silencer design addresses them: meeting site boundary noise limits without costing back-pressure.
Read the articleTalk to an engineer
Send us your turbine or engine data and permit limits and we will scope the intake, emission and exhaust train for your site.
Discuss your project