Drying equipment researchers are studying how to improve the drying rate of drying equipment. But, if they can’t understand the special nature of water, how to improve the rate of drying equipment to the water? Water is different from other substances, it has the particularity and the independence.

1. Water has a very high melting point and boiling point.
Take the hydride to compare with water. The melting point and boiling point of water are very high. This is due to the hydrogen bonds between the water molecules, and H2S, H2Se, H2Te without hydrogen bonds. At atmospheric pressure, the water has a melting point of 0 ℃ and 100 ℃ boiling point.

2.Water has a very high heat capacity.
In the study of drying equipment, don’t forget the heat capacity of water. Heat capacity of water is higher than the value of any kind of material, and the evaporation heat of water is very high. Water can take the initiative to absorb heat, so that their temperature is rise. To a certain extent, the water can be transformed into gas, which is the drying principle of hot air drying equipment.

3.Water has an unusually large phase change heat value.
The phase change parameters of the water to be used in the freezing drying equipment. When the water temperature is 273 16K (0.01℃)，the melting heat of ice is 6.0kj/mol, the sublimation of ice is 51kj/mol , the evaporation heat of water is 45kj/mol. The sublimation of the ice and the heat of evaporation of water are much higher than the melting heat of ice.

Now order, please contact us at website: http://www.dewatering-machine.com/ or e-mail: dingli@dlbio-dryer.com .
 

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