Pendred Airspray Systems
Detailed Explanation
AirSpray Humidification systems are especially designed for use in enclosed cold store room's and refrigerated food display cabinets, where the dry atmosphere would cause unwrapped food to dehydrate and loose moisture and condition. The maintenance of natural moisture and juices is essential to preserve product freshness, taste, texture and appearance.
The System
The Airspray Humidification system combines compressed air and water at an atomisation nozzle fitted into an enclosed space, cold room or food display cabinet. A plume of 95% compressed air and 5% of very fine water droplets of 5-10 microns suspended in compressed air distribute moisture into the area to be humidified. Such minute water droplets evaporate quickly into the air and boost the relative humidity.
A Humidistat sensor positioned within the display or storage facility monitor the level of humidity and a humidistat control system turns the system on and off as required.
The Water
Fresh mains drinking water must be used for all moisture maintenance systems. Airspray humidification benefits from water that has been demineralised but is not essential to its reliable operation.
The Effects
Boosting the relative humidity within an enclosed refrigerated space to over 85% neutralises the drying effect of dry or refrigerated air. Shelf life is extended and the condition of food products are extended as the quality and appearance are maintained.
Tests have also shown that the process of refrigeration is improved as the higher moisture content of the air provides for a better transfer of heat from the product to the refrigeration-cooling coil.
The Benefits
- Shelf life is extended.
- Wastage is reduced as less product is discarded and there is less need to "face" cut surfaces to remove dried and discoloured product.
- Product weight is maintained as moisture loss is reduced by over 50%.
- Product value is maintained, as there is less need to reduce prices to sell the product before it has dried and discoloured.
- Energy cost is reduced by the more efficient operation of refrigeration systems.
- Labour cost is reduced as product can be left in an enclosed display cabinet over night.
- Sales are increased by bolder retail displays especially when trade is slower.
- Customer loyalty is improved due to consistent high quality.
Maintenance
When AirSpray Humidification systems have been correctly set, re-adjustment should not be necessary. Generally speaking the equipment should be checked two or three times a year and the atomisation nozzle(s) descaled and disinfected. Water and Air filters should be renewed at least every six months or more often if water or air quality is a problem.
Humidification & Water Systems