What is the benefit of variable speed?

The CowKuhlerZ system is very effective at cooling cows in spring and fall and in summer,, which is largely because of the variable speed capabilities of the EC Blue motor. The internal VFD allows the Blu Controller to adjust the fan speed according to the THI(Temperature Humidity Index) in the barn.  It delivers exactly the right airspeed needed to maintain the cows' Core Body Temperature within her thermal comfort zone. 

During the spring and fall months the variable speed abilities mean that the decision never needs to be made, when to turn the single speed fans on. Single speed fans are either delivering to much cooing or not enough, the KuhlBlu delivers exactly the right airspeed based on the THI in the barn. Wether its 12°C in early morning and 26°C at 2 in the afternoon. The KuhlBlu seamlessly adjusts to provide exactly the right cooling and the farmer doesn't have to do a thing. 

"According to my calculations the CowKühlerZ system will pay for itself after seven years in energy savings alone and that’s at todays cost of power, which we all know is just going to keep going up. The energy savings are fantastic! Panel fans run for too long and too fast big and they run at 100% capacity or nothing at all. The CowKühlerZ system adapts to provide the right climate for the cows and it’s fully automated I don’t have to do anything."  Farmer from Elora Ontario

The system is fully automated, which means labour savings as well as energy savings. The EC Blue motor is a magnetic, direct-drive motor making it extremely efficient on power usage. 

One way many farm manager/owners can reduce energy usage and control their costs is by investing in variable speed fan technology. Such improvements can save fan energy consumption by as much as 76 percent.

Variable speed fans more effectively match airflow output with load requirements, adjusting speeds based on changing needs. This prevents overcooling and generates significant energy savings.

The variable speed drives enable fan speed to be adjusted based on operating conditions, reducing fan speed and power draw as load decreases. Energy consumption changes dramatically as fan speed is decreased or increased due to the fan laws. For this reason, a 20 percent reduction in fan speed provides nearly 50 percent savings in fan power consumption.

Here is a short video we created on the variable speed KuhlBlu.