When abatement technology has to be sized and its effect proven, brochure figures are not enough. StaldVent simulates emissions under real operating conditions – and has supplied the calculation basis for Danish practice for nearly two decades.
✓ Calculation basis behind the Danish partial-cleaning guidelines (Grøn Viden no. 47) · ✓ Used by universities, consultants and technology suppliers
In Denmark – and increasingly across Europe – livestock permits are granted on documented emissions rather than head counts. Ammonia must be calculated; odour is assessed against neighbours.
Air cleaners, partial cleaning and exhaust strategies must be sized correctly, and the supplier is professionally responsible for the design. Verifiable calculations protect everyone involved.
Authorities, appeal boards and neighbours ask for evidence. Calculations that can be checked have become a competitive edge for consultants and technology suppliers alike.
When the Danish guidelines for the effect of partial air cleaning were prepared (Grøn Viden no. 47, Danish Institute of Agricultural Sciences, 2007), the calculations came from StaldVent’s emission module. Those are the curves practice still refers to – and StaldVent is the tool when the task goes beyond standard assumptions: other cleaning efficiencies, specific control strategies or central exhaust systems.
Straight talk: No authority certifies calculation software as such – but StaldVent has been used and recognised by universities, consultants and technology suppliers for three decades, and its models are published in the international literature. That is documentation that can be verified.
Exhaust units in operation – emissions simulated hour by hour
Verify the annual effect of a chemical or biological cleaner at the chosen control strategy – also when operation deviates from the standard curves’ assumptions.
Calculate how large a partial flow must be cleaned to meet the requirement – and what it costs in pressure loss and electricity.
Attach a verifiable emission calculation to the application when the authority questions the technology’s effect under real conditions.
Is StaldVent approved by the authorities?
Authorities do not approve calculation software. StaldVent is a recognised professional tool whose models are published and provided the basis for the official Danish partial-cleaning guidelines – which is precisely the point: the calculations can be verified.
Can the results be used in permit applications?
StaldVent does not replace national application systems, but supplies the technical documentation behind them: sizing of the technology, cleaning efficiency, operating hours and power use.
Which species are covered?
The emission models cover pig and poultry houses, with and without air cleaning.
Where do the models come from?
From research projects on ammonia and odour emission (including the ROSES project), published by the Danish Institute of Agricultural Sciences and in international journals. See the publication list under About StaldVent.
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