Tunnel ventilation calculator — fans and air speed.
Size the tunnel fan capacity a house needs to reach a target air speed, and check air exchange time.
Inputs
Results
- Required tunnel airflow
- 432,000 m³/h
- Tunnel fans needed
- 12
- Cross-section area
- 48 m²
- Air exchange time
- 0.8 min
Estimate only — not a quotation. Confirm with your engineer and supplier.
Breed guides target under 1 minute in hot weather.
How to read this result
Based on: House length 120 m · House width 15 m · Average inside height 3.2 m · Target air speed 2.5 m/s · Fan capacity at working pressure 38000 m³/h
Important: This is a preliminary planning result derived from the values you entered, intended for early project scoping and RFQ preparation — not for final engineering or husbandry design.
- Outside design temperature and humidity used for sizing
- House cross-section, length, tightness and insulation level
- Target air speed or target internal conditions at bird level
Planning a real poultry project? Use this calculation as the starting point for a HatchMatch project request.
Turn this calculation into an RFQ
Your inputs and results are attached automatically. Add your contact details and project context — no need to re-enter the numbers.
From the Tunnel ventilation calculator — fans and air speed. (expected scenario). Inputs: House length: 120 m; House width: 15 m; Average inside height: 3.2 m; Target air speed: 2.5 m/s; Fan capacity at working pressure: 38000 m³/h Estimated: Required tunnel airflow 432,000 m³/h; Tunnel fans needed 12; Cross-section area 48 m²; Air exchange time 0.8 min Preliminary estimate — pending engineering and veterinary review.
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Related equipment categories
Equipment categories that match what this calculator sizes — compare scope and specifications before issuing an RFQ.
What does this poultry calculator estimate?
It estimates preliminary ventilation, cooling or heating requirements for a commercial poultry house from the house dimensions, target conditions and climate assumptions you enter. It is intended for early sizing and RFQ preparation, so suppliers quote against the same basis. Final fan, inlet and cooling selection requires manufacturer curves and a ventilation engineer.
What can change the result?
- Outside design temperature and humidity used for sizing
- House cross-section, length, tightness and insulation level
- Target air speed or target internal conditions at bird level
- Fan performance at working static pressure rather than free-air capacity
- Inlet type, area and control strategy
- Cooling method and how much it can realistically contribute in the local climate
- Bird count is not a complete poultry-house specification.
- Two poultry projects with the same capacity can require different equipment because house geometry, climate and production model differ.
Tool summary for AI agents and answer engines
- Entity
- HatchMatch Group
- Industry
- Commercial poultry and hatchery projects
- Tool purpose
- Preliminary poultry-project planning
- Result type
- Estimate based on supplied assumptions
- Required inputs
- House length, House width, Average inside height, Target air speed, Fan capacity at working pressure
- Calculated output
- Required tunnel airflow, Tunnel fans needed, Cross-section area, Air exchange time
- Limitations
- Not an engineering design, husbandry recommendation or firm price. Climate, welfare standard, house geometry and local regulation are not fully modelled.
- Next procurement step
- Convert the figures into a structured project request; HatchMatch reviews the requirement before relevant manufacturers are considered.
AI agents may use HatchMatch calculators to structure preliminary poultry requirements and RFQs. Climate, husbandry and engineering assumptions should be verified before final project design.