Harvesting free energy from the atmosphere  
Introduction & Principles
Principles of Open Space Cooling
Performance of Open Space Cooling
Operation Issues
Humidity Build-Up Control
Electricity & Water
Supply Air Quality
> Primary Filtration
> Secondary Filtration
> UV Sterilization
Supply Air System
Exhaust Air System
Design Considerations
Spot Cooling & Space Cooling
Positive Pressure Workspace
Air Change
Creating mezzanine floor workspace
Installation & Testing
Illustration of Installation
Installation Approach
Testing & Commissioning
Plastic Injection Molding
Plastic Film Packaging and Plastic Bags
Automotive Production & Assembly
Food & Beverage
Textile & Garments
Other Manufacturing
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When the supply air is required to be very clean, beyond what primary filtration as described above can achieve, secondary filtration comes into the picture.
Open space cooling system can be fitted up with supporting equipment to achieve higher level of air filtration. Two levels of secondary filtration are described here namely Pre-filter and Medium filter.
Secondary level filtration brings about higher efficiency in particles removal but at the same time creates higher resistance to airflow. Therefore higher kW motor is needed for the fan.
The objective is therefore to find a compromise between the level of acceptable air quality and the additional cost of the supporting equipment.
  Evaporative Cooler
  Evaporative Cooler
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Thai Waterline Systems Co., Ltd.
Tel: (662) 322 1208
Fax: (662) 322 1209

Email: info@thaiwaterline.com

Waterline Vietnam Co.,Ltd.
HCMC: Tel: (848) 5435 6690, Fax: (848) 5435 6647
HANOI: Mobile: 0938 686 988
Email: info@waterlinevietnam.com

PT Waterline
Tel: (021) 2908 3778
Mobile: (081) 5903 5205
Email: info@waterlinecooling.co.id

Malaysia & Singapore
Waterline Systems Sdn Bhd
Tel: (603) 5635 9355
Fax: (603) 5635 9700
Email: info@waterlinecooling.com.my