Studies and calculations
Modelling calculations
Do you need to quickly compare stack, plant room or transport variants? We perform immission and noise modelling calculations — documentation for a study, EIA or authority consultation.
Studies and calculations
Service overview
What we provide
We model immission contributions from air sources and transport on site. We prepare noise calculations for technologies, site and roads
When you need this service
You are planning a new project or source capacity change
What you receive
modelling calculation results with evaluation; documentation for dispersion or noise study
Service details
Scope and deliverables
What we provide
- We model immission contributions from air sources and transport on site
- We prepare noise calculations for technologies, site and roads
- We compare operational or source location variants
- We prepare outputs for a study, EIA or authority consultation
What you receive
- modelling calculation results with evaluation
- documentation for dispersion or noise study
- variant comparison and recommendations for next steps
When you need this service
- You are planning a new project or source capacity change
- You need variant assessment of operation
- An authority requires immission or noise evaluation
- You are preparing a dispersion or noise study
Documents and preparation
What to send us
- source technical parameters and emission data
- project layout and surrounding development
- operating schedule and variants
- authority requirement or study brief
Typical mistakes and risks
- Calculation without verified input emission data
- Failure to consider all relevant sources on site
- Confusing calculation with field measurement for existing operation
Typical situations
- immission modelling calculation for new technology on site
- noise calculation for plant room or HVAC location variants
- immission contributions for a landfill or boiler dispersion study
- documentation for EIA and permitting
Frequently asked questions
When is a dispersion study required?
Prepare a dispersion study for a new or modified emission source, technology change, capacity increase, EIA, permitting proceedings or on instruction from the regional authority.
Who may prepare a dispersion study?
A dispersion study may be prepared by an authorised person within the relevant scope.
What documentation is needed for a dispersion study?
Typically a technology description, emission parameters, stack height and diameter, volumetric flow, temperature, operating hours, site layout, transport data, surrounding development data and the study purpose.
Can a dispersion study be prepared for variants?
Yes. For projects in preparation, multiple technology, stack, operating mode, capacity or transport intensity variants can be compared. Variant assessment helps the investor and designer find a technically and environmentally preferable solution.
When is a noise study appropriate?
A noise study is appropriate before implementing a new noise source, during technology change, for industrial sites, HVAC, heat pumps, transport, storage and production operations, or as documentation for building proceedings, KHS or EIA.