Cooling solutions to beat the heat!

Heat stress can have a large impact on cow comfort and milk production, affecting the profitability of dairy operations.
Fans cool by moving air over the body at a fast speed. They do not cool the air. When fans are not sufficient, additional
cooling can be achieved using evaporative cooling.
Two types of evaporative cooling are available :
1. Sprinkler systems in combination with fans
2. High pressure fogging systems cooling the air .

Our cooling solutions for your dairy farm

Sprinkler systems wet the cows with a large droplet and then use fans to blow across the cow's bodies to evaporate the water and cool the cows. In most cases a pipeline has been installed next to the feeding area and mounted with low pressure 180degrees nozzles spreading the water over the cows back. A spray pattern with a radius of max. 2.40m is wanted so the freestalls don't get wet.
Nozzle size determine the waterflow rate . Only the correct pipe diameters, pressure regulators , thermostats and timers make the system complete and successfull. Abbi-Aerotech can help you making the correct installations.

High pressure fogging systems evaporative cooling is used to cool the air above the cow and not wetting the cow.
A fog-ring is mounted on the fans consisting of 6, 8 or 10 nozzles. A high pressure waterpump supplies the water at 70 Bars to the nozzles, where a fine mist vaporizes , absorbing the heat and transferring it away from the cow. Depending on the humidity level in the barn, temperature drops of 3-5 degrees C are reached. Important is the control of humidity levels and the settings made on the controls.
Abbi-Aerotech can help you making the correct installations.

Our dairy cooling system

Fogging/Soaking
Fogging/Soaking

The fogging system works with high pressure pumps at 70 Bar and by means of special nozzles the water is nebulous into drops of just 10 microns. The nebulous water evaporates instantly, lowering the ambient temperature.    The soaking system works with a low pressure system 1,3 Bar. The soaking nozzles are placed above the feeding table with a pipe or the nozzles are placed above the holding area.

Pad cooling
Pad cooling

Water is pumped across the pad . The airflow evaporates the water and the air cools down. Temperature can be lowered by 8-15 degrees , depending on local conditions.

The highly efficient “Aerocool” panels are easy to install and control. Pads are very effective in dry climatic conditions. In humid regions not all systems are equally suitable. In that case pad cooling  is a better solution.

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An investment with a short payoff time

Heat stress in dairyfarms
Heat stress in dairyfarms
  •  Reduced Milk Production
  • Depressed feed intake
  • Respiration rates over 80/min.
  • Reduced conception rates.
  • Sub-optimal cow health
  • Compromised growth rates of unborn calves
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Mechanical ventilation
Mechanical ventilation
Natural ventilation is a good way to vent cattle barns. However, on hot days with temperature above 20C, cows start having trouble to lose heat and additional air movement must be provided! This improves the heat release of the animals and thus reduces the risk of heat stress. It is important to start ventilating early; low air velocities already suffice to shift the lead-up to heat stress and while the temperature rises, the air velocity is increased proportionally.
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Placement of the fan
Placement of the fan
Tests have shown that the best results are achieved when the fans are placed both above the cows on the feeding line and above head-to-head freestalls. Ideally, fans are placed at a height of 2.7 m, directed downward at an angle of aprox. 15-30. The air velocity and the blow length of the fan determine the intermediate distance.
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Tunnel ventilation system
Tunnel ventilation system
Fans can also be placed in the outside wall to draw outside air into the barn through cooling panels. This method, the so-called tunnel ventilation system, can realize temperature reductions of as much as 8 to 12 C! A good cooling system produces an air velocity at animal height of at least 2.5-3.0 m/sec throughout the barn. While the temperature of the air does not drop, the wind chill at this air velocity means the animals experience a temperature that is 2 to 4 C lower.
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Extra cooling
Extra cooling
Extra cooling can be provided by fitting a foggingsystem to the fans. A separate foggingsystem only works in combination with fans, whereby measures should be taken to prevent extreme humidity. A ring of high-pressure (70Bar) spraying nozzles can be mounted to the fan, with a time clock or special regulator ensuring regular water atomisation. The very fine droplets evaporate quickly, lowering the air temperature by some 3 to 4C.
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Control equipment
Control equipment
The speed of the fan can be regulated by means of a frequency controller, guaranteeing low energy consumption at low speeds. Abbi-Aerotech provides various options for automatic ventilation control by means of frequency controllers in combination with a DCC-1 or DCC-1SH temperature controller.   DF-Control, (Dairy Frequency control) a new frequency inverter for 3-phase motors with extra energy efficiency.
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Get personal advice from our experts

Year after year, heat stress leads to a decrease in milk production. That is why Abbi-Aerotech has made a ventilation system that helps to solve this problem. We can provide you with the best climate solution for you barn. Contact one of our experts and we will be happy to help!

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Speak to one of our specialists!