Industries: Data centers
Emission control and acoustic treatment for standby and prime-power generation, engineered so your facility meets permit limits and neighbourhood noise consents without compromising uptime.
What we deliver
Hyperscale and colocation sites run banks of diesel and gas gensets that must start under load in seconds, and meet the same emission and noise limits as a permanent power plant. Axces engineers the exhaust train that sits between the engine and the stack: SCR DeNOx, oxidation catalysts, and multi-stage silencing sized to your specific machines and duty cycle.
We start from your engine data sheets and the local permit. Back-pressure budgets, catalyst space velocity, and insertion-loss targets are modelled before any steel is cut, so the system clears NOx and CO limits while staying inside the back-pressure your engine warranty allows.
Every assembly is built to the tag list, flange standard, and delivery window your project schedule demands: DN-matched, PN-rated, and shipped with the acoustic and emission test data your authority having jurisdiction will ask to see at commissioning.
Products for data centers
Four core assemblies cover the standby-power exhaust train, each specified against your engine data, permit limits, and site acoustics.
SCR system
Urea-dosed selective catalytic reduction sized to engine flow and temperature for 95 %+ NOx removal.
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Silencer
Residential- and critical-grade silencing engineered to the site noise limit, with controlled back-pressure.
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Stack
Self-supporting or guyed stacks with diffusers sized for plume rise and dispersion modelling.
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Vent silencer
Intake and discharge ventilation silencing for radiator and louvre openings on enclosed sets.
Learn moreWhy Axces
Five reasons engineering and facilities teams specify Axces for critical-power exhaust and acoustics.
Our approach
A four-step process that keeps emission, acoustic, and schedule risk off your critical path.
We take your engine data, permit limits, and site acoustics and define the back-pressure, NOx, and insertion-loss targets.
Flow, catalyst space velocity, and attenuation are simulated so the system clears limits before any steel is cut.
Assemblies are built to your tag list, flange standard, and delivery week, with material and weld traceability.
We support installation and witness testing, handing over the emission and acoustic data your AHJ requires.
Industry context
Permit, noise, and capacity demands are tightening faster than most standby-power designs were built for.
NOx and CO thresholds for stationary engines keep falling, pulling SCR onto sites that once ran raw exhaust.
Campuses sited near housing must hold strict boundary dB(A) limits even during weekly load-bank tests.
AI workloads push power and standby capacity up, multiplying the number of gensets and their combined emissions.
Speed-to-power timelines leave little slack; exhaust and acoustic systems must arrive ready, on the delivery week.
From the knowledge hub
Why data center backup generators create a noise-compliance problem, and how exhaust silencing and enclosure design work together to meet boundary limits at the nearest receptor.
Read the articleTalk to an engineer
Send us your engine data sheets and permit limits and we will scope the exhaust and acoustic train for your site.
Discuss your project