Aerotech Tunnel Ventilation Systems
By Aerotech
Last reviewed: December 2025
Tunnel ventilation creates high-velocity airflow through dairy barns, providing effective heat stress relief and improved air quality for lactating cows.
Overview
Tunnel ventilation systems move large volumes of air through dairy barns at high velocities, creating wind chill effects that help cows stay cool during hot weather while improving overall air quality.
How Tunnel Ventilation Works
Basic Principles
Air Speed Targets
System Components
Exhaust Fans
Inlet Systems
Controls
Benefits
Heat Stress Reduction
Effective cooling through wind chill effect improves:
Air Quality
Continuous air exchange reduces:
Design Considerations
Building Orientation
Ideally align barn length with prevailing winds.
Cross-Sectional Area
Proper sizing for desired air velocity.
Barn Length
Longer barns may need staging or additional systems.
Integration with Other Cooling
Soaker Systems
Combine with water application for evaporative cooling.
Shade Structures
Reduce heat load before air movement.
Evaporative Pads
Cool incoming air in dry climates.
Key Features
- High-Capacity Exhaust Fans: Large fans for maximum air movement
- Controlled Inlets: Manage air entry for even distribution
- Variable Speed Drives: Adjust airflow based on conditions
- Automated Controls: Temperature-based fan staging
- Emergency Override: Backup systems for power failures
Advanced Features
- Evaporative Cooling Integration: Combined system for maximum cooling
- Air Quality Monitoring: Sensors for optimal ventilation rates
- Energy Management: Efficient fan staging to minimize costs
Ideal For
Farm Types: Freestall dairies, Enclosed barns
Competitive Advantages
What sets Tunnel Ventilation Systems apart from alternatives:
- Consistent, predictable airflow regardless of weather
- Controllable environment for optimal cow comfort
- Can combine with evaporative cooling
- Proven technology in hot climates
Pricing Information
Here is the pricing information for Tunnel Ventilation Systems:
High-capacity tunnel ventilation fans for dairy barns.
Pricing Model: Ventilation system installation
Aerotech, Munters, and other manufacturers. Essential for hot climate dairy operations.
Pros & Considerations
- Proven tunnel ventilation design
- Excellent cow cooling
- Energy-efficient fans
- Quality construction
- Technical support
- Building design requirements
- Installation investment
- Power requirements
- Maintenance needs
Implementation & Setup
How to implement Tunnel Ventilation Systems on your dairy operation:
Implementation Timeline: 2-4 weeks for complete system installation
Training & Support
Training and support options available for Tunnel Ventilation Systems:
Support Channels:
Evaluation Questions
Key questions to consider when evaluating Tunnel Ventilation Systems:
- Is your barn suitable for conversion to tunnel ventilation?
- What are your maximum heat load conditions?
- What is your electrical capacity?
- Would evaporative cooling integration be beneficial?