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Ventilation CFD Modelling & Air Balancing

Getting airflow right takes two things โ€” modelling it before you build, and measuring it after. We use CFD modelling at design stage and air balancing at commissioning so a commercial ventilation system moves air the way it was designed to.

Two things decide whether a commercial ventilation system actually moves air the way it should: modelling the airflow before anything is fabricated, and measuring it after it is installed. CFD modelling handles the first, air balancing the second โ€” and used together they turn "it should work" into "it does". This is airflow engineering applied where it matters most: the commercial kitchen and its cooking line.

What CFD modelling does

CFD โ€” computational fluid dynamics โ€” models how air, heat and smoke move through a space on screen, before a single duct is fabricated. Instead of committing a hood position, duct route or fan size to steel and finding out on site that smoke rolls out of the canopy, the airflow, capture and pressure are studied in the model first. A problem caught in the model is a line changed on a drawing; the same problem caught on a finished kitchen is a rebuild. Modelling lets airflow, capture velocity over the cooking line and the pressure balance between spaces be tested and refined while everything is still a design.

What air balancing does

A model predicts; commissioning proves it. Air balancing is the measured, hands-on step at the end of a job: exhaust and make-up air are measured and adjusted to the design figures, hood capture is verified over the cooking line, and the pressure between the kitchen and the dining area is corrected so it is neither starved nor over-pressured. This is what fixes the real symptoms operators feel โ€” smoke lingering under the hood, doors that slam or won't open from pressure, and air-conditioning fighting an over-strong exhaust. Balancing brings the whole system back to the numbers it was designed around.

Why the two belong together

The model predicts the airflow; the balancing verifies and corrects it once the system is real. They are the two ends of one airflow-engineering job โ€” design-stage prediction and commissioning-stage measurement โ€” not two separate services. A system modelled but never balanced is a theory; a system balanced with no design intent to balance to is guesswork. Doing both is how a ventilation system performs on the day it opens and keeps performing.

Built for commercial kitchen & cooking-line ventilation

This is where we are different. General building-services firms that offer CFD or air balancing tend to work on car parks, tunnels and smoke control โ€” and they leave commercial kitchen ventilation alone. A cooking line has demands those projects don't: make-up air that has to match a heavy grease-laden exhaust, multiple hoods over different appliances that have to be balanced against each other, and the kitchen-to-dining pressure that decides whether smoke and smell stay in the kitchen or drift into the dining room. We apply CFD modelling and air balancing specifically to these problems, on commercial kitchen exhaust and ventilation systems โ€” which is the ventilation we design, build, clean and maintain every day.

Compliant by design

Commercial kitchen ventilation in Singapore has to satisfy several agencies. We model, measure and document the work to align with NEA, SCDF, BCA and bizSAFE requirements โ€” from grease and discharge control to fire safety and airflow โ€” and we handle the technical detail these agencies expect, so your approval and inspection process is smoother.

One accountable team

The team that balances your airflow on site is the team that designs and builds the system, and the team that maintains it afterwards. If an existing kitchen is underperforming, we start by assessing what it is actually doing before recommending what to adjust โ€” one team accountable for how the finished system moves air.

Questions

Frequently Asked

What is CFD modelling for ventilation?
CFD (computational fluid dynamics) models how air, heat and smoke move through a space on screen before anything is fabricated. It lets airflow, hood capture over the cooking line and the pressure balance between spaces be studied and refined at design stage โ€” so a problem is caught in the model as a drawing change, not on a finished site as a rebuild.
What is air balancing, and when is it done?
Air balancing is the measured, hands-on step at commissioning, once the system is installed. Exhaust and make-up air are measured and adjusted to the design figures, hood capture is verified, and the pressure between the kitchen and dining area is corrected. It is what turns a design into a system that actually moves air the way it was meant to.
Do I need CFD, air balancing, or both?
They serve different stages of the same job. CFD modelling predicts airflow at design stage; air balancing measures and corrects it at commissioning. A new or complex system benefits from both โ€” the model to design it right, the balancing to prove and tune it. An existing system that underperforms usually needs balancing first, sometimes with modelling to work out why. Tell us your situation and we will advise what actually applies.
Can you balance a kitchen that's already built and underperforming?
Yes. We assess what the system is actually doing โ€” exhaust and make-up airflow, hood capture, and the pressure between kitchen and dining โ€” then balance and adjust it towards the figures it should be hitting. Where the cause isn't obvious, modelling can help work out why before we correct it.
Do you handle NEA, SCDF and BCA requirements?
We design, measure and document the work to align with NEA, SCDF, BCA and bizSAFE requirements and support the approval and inspection process with the technical detail these agencies expect.
How much does CFD modelling or air balancing cost?
Every system is sized to the specific kitchen โ€” the cooking line, the number of hoods, the duct run and the make-up air โ€” so there is no fixed price. Send us your project on WhatsApp and we will come back with a clear, no-obligation quotation.

Talk to a Ventilation Engineer

Tell us about your system โ€” new design or an existing kitchen that isn't performing โ€” and we'll come back with a clear, no-obligation quotation. We're on standby 24/7.

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