ECV - Effective Cowside Ventilation
During warm weather with a Temperature Humidity Index (THI) above 70 a cow will start to experience reduced rumination, increased activity levels and up to 50% less water intake. We call this HEATSTRESS. The chart below will show the range of temperatures where this can occur.
To combat heatstress, exhaustion and possibly even mortality in a cow, Magdek supply the TOPCOOL range of ECV or Cyclone fans. The fan will create a flume of air along beds, controlled by a fixed wing design to deliver airspeed onto the cows backs. The wings not only focus air, they also prevent bedding “lift”.
The speed (ECV) of this air has to be significant, otherwise the hide of the cow will not have cooling relief. Research by various bodies has set a figure of 1.0-1.5m/s as a minimum with no recognized maximum.
Moving air only along beds will also stimulate rumination and productivity rather than movement in passageways. Energy cost should always be considered before ventilating elsewhere.
Avoiding Heat Stress
If an animal fails to control her thermal balance, she becomes heat stressed, her feed intake will decline and so will her milk yield.
As the ambient temperature increases above the Upper Critical Temperature, milk yields can fall by as much as 20%.
But heat stress can be avoided. With the use of the TopCool Cyclone Fans, the cow is immersed in a windchill, allowing her to lower her body temperature quickly.
For the past three decades, Magdek has developed innovative solutions to help prevent heat stress in cows.
Topcool
Topcool offer 36”, 55”, 72” and 84” versions of all ECV Cyclone fans.
Topcool are the original designers of the ECV Cyclone fan from 2005 in Canada.
In 2016 Topcool entered the European market and established 19 national dealers. Magdek based in Lisburn, Welshpool and Bristol is the main dealer for Topcools full product range of dairy fans.
Topcool have 2 main variants of dairy ECV Cyclone fans-
- Standard belt drive with the latest European IE3 motors frequency/speed controllable by external control drives.
- Integrated, direct drive IE5 motors with frequency/speed control integrated inside the motor requiring only a control signal externally.
FETF329CA - ECV fan - 125cm
Expected average cost of item (£): 1,465
Grant amount (based on a quantity of 1) (£): 733
Score: 1,000
This item is new for 2024. Item must:
- be an effective cooling velocity (ECV) fan for reducing heat stress in cattle
- be able to produce high-velocity air speed – minimum 1 metre per second at cow resting height
- use louvres to direct uniform air flow to cow level
- be designed to hang from the ceiling of livestock sheds
- have easy clean housing
- have a minimum blade size diameter of 125cm
- have a direct drive or a belt drive – items with a belt drive must include relevant safety features such as auto-tensioning
Item should be able to generate a laminar air flow for effective cooling.
FETF330CA - ECV fan - 175cm
Expected average cost of item (£): 2,309
Grant amount (based on a quantity of 1) (£): 1,155
Score: 1,000
This item is new for 2024. Item must:
- be an effective cooling velocity (ECV) fan for reducing heat stress in cattle
- be able to produce high-velocity air speed – minimum 1 metre per second at cow resting height
- use louvres to direct uniform air flow to cow level
- be designed to hang from the ceiling of livestock sheds
- have easy clean housing
- have a minimum blade size diameter of 175cm
- have a direct drive or a belt drive – items with a belt drive must include relevant safety features such as auto-tensioning
Item should be able to generate a laminar air flow for effective cooling.
Technical Spec
- IE 3 basic motor specification
- IE 5 EC options on all sizes.
- 375 watt – 4000 watt motor range.
- 36″ to 84″ blade selection.
- Airflow: 17,000 to 124,000 cubic meters per hour.
- Optional black box THI control.
Best Seller - Coolibri Spin Boy II
Coolibrì is one of Europes’s specialist manufacturers of HVLS, producing designs for moving large volumes of air from one small drive motor overhead in large spaces such as agricultural buildings. Magdek have selected their Spinboy II model for farmers who prefer to have this option. Note the shed height should be at least 3 times the diameter of the impeller, (starting at 4m for DEFRA grants).
Magdek selected the Spinboy because it has the unique design feature of a moveable mount allowing it to have a horizontal element to its air movement.