Evaporative Cooling

Evaporative cooling is the easiest and most e cient way to create cooling. Our body rejects heat using the same method and through sweating (moisture evaporation from the skin). Evaporative coolers use different evaporative media to cool the air, of which the cellulose pad is one of the most efficient.

The cellulose pad consists of regular and wavy thin sheets with high wettability and water absorption properties and is saturated by chemical materials to increase strength and durability. The uniform and dense structure of the pad causes the air-water interface in the cellulose pad to be more signi¬cant compared to the aspen pad and the airspeed to be more uniform. These factors increase the cooling rate and prevent the entry of water droplets, dust and harmful respiratory bacteria into the airfow.

Principles Of Cooling And Ventilation Of Greenhouses

Ventilation and cooling of the greenhouse is necessary to provide a favorable environment for plant growth. Evaporative cooling pad adds moisture to the greenhouse air that reduces plant transpiration and the required water for irrigation. Moreover, dust insects and airborne particles are trapped by the pad.

The greenhouse is ventilated for the following reasons:

• It prevents the greenhouse tempreture from rising too much during the day;
• Ensuring the proper level of greenhouse carbon dioxide;
• Greenhouse humidity control.

The greenhouse is ventilated for the following reasons:

1. It prevents the greenhouse tempreture from rising too much during the day;
2. Ensuring the proper level of greenhouse carbon dioxide;
3. Greenhouse humidity control.