Many pig farms have some problems in the process of using cooling pad, and the effect of using cooling pad has not been achieved. We will discuss some misunderstandings in the process of using the cooling pad, hoping to help more breeding friends to survive the hot summer smoothly.
Misunderstanding 4: The cooling pad area is too large or too small.
Misunderstanding: As long as a few more exhaust fans are installed, the ventilation volume is sufficient, and it does not matter if the area of the coling pad is smaller.
Positive solution: The number of square meters of cooling pad installed in the pig house also needs to be accurately calculated, and the area of the cooling pad must match the ventilation volume of the fan. If the area of the cooling pad is too small, the static pressure difference of the pig house will increase, resulting in an increase in the drag coefficient and a decrease in the ventilation rate, thereby affecting the cooling effect; the increase in the static pressure difference of the pig house will also cause hot air to enter the pig house from gaps such as door cracks and trenches, affecting cooling Effect. If the area of the cooling pad is too large, it will cause unnecessary waste. Cooling pad area (square meter) = exhaust fan ventilation per second / air inlet wind speed (m/s)
The wind speed at the air inlet of the pig house is preferably 3-4 m/s. In general, the average wind speed of the fan is 10-12 m/s, and it can also be simply calculated that the area of the cooling pad should be 4-6 times that of the fan.
Misunderstanding 5: Using cooling pad too early.
Misunderstanding: As long as the sun comes out in summer, the cooling pad will be opened, and it is better to open it earlier than later.
Positive solution: When the temperature of the pig farm is below 28°C, it is enough to use only the exhaust fan to ventilate and cool down. When all the fans are fully turned on and the temperature is higher than 28°C, then turn on the cooling pad, and a temperature control switch can be designed. Opening the cooling pad too early will not only bring waste, but also increase the air humidity.
Misunderstanding 6: Do not pay attention to the heat insulation of the pig farm, and only rely on the cooling pad to cool down.
Misunderstanding: As long as there is a cooling pad, and the temperature can be lowered.
Positive answer: Pig farm insulation is the focus of coping with heat stress. If the pig farm is not well insulated, the thermal bridge effect will have a great impact on the cooling effect.
We hope that the interpretation of the misconceptions about the use of cooling pad through the above phenomena can help you use the cooling pad to cool down in the hot summer and get better benefits.