Humidification . It is an operation that consists of increasing the amount of steam present in a gas stream; steam can increase by passing the gas through a liquid that evaporates in the gas
Summary
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- 1 Process in humidification
- 2 General application
- 3 Application in the food industry
- 4 Sources
Process in humidification
A stream of hot water comes in contact with a stream of dry (or low-moisture) air , usually atmospheric air . Some of the water evaporates, thus cooling the interface. The bosom of the liquid then gives up heat to the interface, and therefore cools. In turn, the evaporated water at the interface is transferred to the air, so it is humidified.
General application
The main application of humidification and dehumidification is in air conditioning and gas drying. An aspect of interest related to this basic operation is the cooling of waters after an industrial process, in order to be able to be used again; the equipment used is in the form of a tower in which hot water is introduced through the upper part and flows over a counter-current filling with air that enters through the lower part of the cooling tower.
Application in the food industry
The knowledge of the humidification and dehumidification processes, as well as the calculations involved in it, will be useful in the design and analysis of different food storage and processing systems. Likewise, it is essential to know the properties of air- water vapor mixtures in the design of systems such as air conditioning equipment to preserve fresh food, cereal grain driers and cooling towers in food processing plants.