An Introduction to Humidity Control with Misting

It is often desirable to control and/or monitor the temperature and humidity of the environment in various industrial processes, and often, higher staff productivity is achieved by the simple expedient of changing the work environment to a more pleasant or bearable one. Temperature control is relatively easily achieved by the usual means, but is much more cost effective when misting systems are used to cool (or pre-cool) the air, or to improve the heat exchange cycle of condensers, etc.

Humidity control is less easily achieved due to the shortage of accurate humidity measurement sensors and the lack of understanding of the importance of humidity control throughout industry.

Typical Environments

Humidity control and generation is very much dependent on the type of environment (enclosed/large/small/closed air loop) to be controlled and monitored.

These ranges from:

• control of egg incubators (typically from 0.5 cubic meters upwards) which are semi-closed systems requiring little humidity generation (typically achieved by controlling air flow in an evaporator);
• to bread dough ‘proving rooms’ which require controlled temperature and extremely high humidity (typically generated by submerged heating elements promoting water evaporation);
• cold rooms,
• factory floors,
• storage areas for static sensitive components,
• testing laboratories,
• terrariums
• greenhouses,
• chicken hatcheries, etc
• open-air environments (typically nurseries with plants under shade netting, coffee shops (both for temperature and humidity);
• and also widely in use to keep produce fresh and vegetables crisp.

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