LORDAN Applications of Nano Coating in Air-Conditioning

LORDAN Applications of Nano Coating in Air-Conditioning Technology Basic Principles and Practical Examples

LORDAN Coating Materials via Sol-Gel Process • Novel synthesis routes for coating materials • Production of particles in Nanometer-scale • Specific adjustment of coating properties

LORDAN Organic-Inorganic Hybrid-Polymeres Resistant against: - UV-Light - Temperature (-cycles) - Environmental influences (Hydrolysis, Weathering etc. )

LORDAN Nano coatings on Metals: • Abandonment of hexavalent Chromium and other Heavy Metals • Thin Coatings • Very low Material Consumption • Improved Coating Properties

LORDAN Coating Properties: Caoting thickness: Clearcoating: 3 - 5 microns Pigmented: 5 - 15 microns Adhesion to: Metals (Al, Mg, Stainless Steel. . . ) Glass / Ceramic

LORDAN Single-Component Coatings Thin Coatings for Light Metals and Stainless-Steel Excellent Corrosion Protection and easy-to-clean Properties

LORDAN Advantages of Coatings: • Abandonment of hexavalent Chromium and other Heavy Metals • Pre- treatment is reduced to Alkaline Cleaning • Thin Coatings, low Material Consumption • Improved Coating Properties

Application Examples: Air-Conditioning Technology LORDAN

LORDAN Sources of Contamination: • Dust (for example from Grinding Machines) • Abrasion • Fluff Ball (from Textiles, Polymers) • Oleiferous Air • Acidic Air

Satrting point: Cooling unit at grinding machine LORDAN

Cooling unit in elctrical control cabinet at textile industry LORDAN

Today‘s Solutions: • Use of Filter Pads • Continuous cleaning with compressed-air LORDAN

LORDAN Customer‘s statements about Maintenance: • No more maintenance wanted • Maintenance is expensive • We have no financial and human resources for maintenance • Devices should work for their whole life

Why Nano coatings? LORDAN Advantages: • Specific adjustment of coating properties possible • Here: Easy-to-clean properties • New coating materials are based on high chemical bonding energy • Resistant against temperature and environmental influences • Chemical basis shows stable soil-resisting properties • Non-polar surface properties

LORDAN Why Nano coating? Advantages: - Environment friendly production process: Conventional coating use Chromium, Zirconium or Titanium on Aluminium surfaces - These pretreatments can be avoided - Liquid coating materials

Quality testings: LORDAN - Acidic Humidity: (30 Cycles, 0. 2 SO 2) ISO 3231 - Constant Humidity: (1, 000 h) DIN 50 017 - Salt-Spray: (> 3, 000 h) ESS ISO 9227 - Boiling test: (2 h dest. Water) - UV-Resistance: QUV 300 h ISO 11507 - Heat transfer: DIN 3168 Positive test results: - No damaging, blistering or softening of the coating!

Salt-Spray-Testing (2000 hours) LORDAN Galvanized end plates and copper tubes are all totally corroded. Fins and fins edge show no sign of corrosion!

Results of practical testings: Used during production of carbon brushes for electric motors LORDAN 10. Februar 2006 5. September 2006 7. März 2007 12. September 2007

Results of practical testings: Used in casting house and finishing of stainless steel pipes LORDAN 2. Juni 2006 7. November 2006 18. April 2007 14. September 2007

Electrical controle cabinet cooling unit at brakedisc production Present state: - Fleece filter is changed continuously, yearly total cleaning of the unit - Fleece filter are strongly contaminated after 15 days of use - Condenser is already polluted, traces of oil LORDAN

Electrical controle cabinet cooling unit with Nano coating LORDAN - Condenser is clean, - Examination with Endoscope and fleece paper show no traces of pollution

Energy balance at the use of Nano coatings: LORDAN -Energy consumption is reduced 30 % in comparison to uncoated parts! -Equivalent CO 2 -output also reduced 30 %! 3, 500 kg 3, 000 kg 2, 500 kg 2, 000 kg 1, 500 kg 1092 1, 000 kg 500 kg Clean Polluted Difference Only 3% of greenhouse effect results from freezing agents, but 97% are a result of Energy consumption of the cooling units.

LORDAN Resume and Future prospects • Reduced adhesion of dust particles at the fins of the condensors, leading to increased economic life-time and extended service intervalls • Successful use in technical units since 2000 • Production process is eco-friendly and energy-saving • Reduction of power drop of the cooling units in continuous duty, resulting in high energy efficiancy • In many industrial applications (dry dust) no use of fleece filters needed • Easy-to-clean surface