The Drying Process

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The Drying Process

• Nigel Hewitt
• Technical Manager

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Traditional Methods

• Evaporation
• Air movement
• Air movers
• Injection Drying Systems
• Tenting

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Traditional Methods

• Dehumidifiers
• Domestic Refrigerant
• Commercial Refrigerant
• Low Grain Refrigerant
• Desiccants

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What Effects The Drying
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The Way Forward ?

• Traditional
• Dehumidification
• New Technologies
• Heat
• Speed
• Size
• Cost

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Heat Drying Systems

• Convection Drying Systems
• Open type
• Heats Air
• Built in moisture evacuation
• Hydronic
• Heats Liquid
• Glycol
• Problems evacuating moisture

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How They Work

• Vapour Pressure
• High always goes to low (When it can)
• Add heat to a wet surface increases its vapour
  pressure
• A 10ºC rise in temperature doubles the rate of
  evaporation

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Heat Drying Systems

• TES System
• Dryair System
• Aquadry

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Large Drying Systems

• Large Desiccants
• Corroventa
• Arid Dry
• Some add Heat
• Concept

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New Technologies

• Environmental Control Units
• Heating
• Dehumidification
• Cooling

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Which Method Is Best

• What are we trying to achieve
• Are the new systems Best
• Where do we use them
• Do they have issues
• Is there still a place for traditional methods

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Any Questions

• Thank You