1. IntroductionCollectors Thermo siphon systems Multiple Thermo siphon systems Solahart Test field in Australia Thermosiphon France

2. Introduction Collectors Thermo siphon systems Multiple Thermo siphon systems Discription of Solahart Collector • All Solahart collectors are Harf type collectors • 4 connections on each corner • Maximum of 8 collectors parallel • Each collector has the same temperature rise over the collector. Thermosiphon France

3. Introduction Collectors Thermo siphon systems Multiple Thermo siphon systems Two different absorbers possible : Kf Collector : Multiflow absorber With 35 chanels. Steel absorber with nickel corosion protection and black chrome selective surface. Speccialy for Thermosiphon systems. Bt Collector : absorber with 13 copper tubes and a copper absorber plate with Bleu sputter selective surface. Specially for pumped systems Thermosiphon France

4. Introduction Collectors Thermo siphon systems Multiple Thermo siphon systems KF Collector The Next Generation Black Chromed Collector New corner blocks, better insulation Thermosiphon France

5. Introduction Collectors Thermo siphon systems Multiple Thermo siphon systems • Multi Flow - 35 risers by pressing process • Large relation between internal flow surface and outer surface • Low pressure drop (perfect for thermo siphon) • Minimum energy loss • Low pressure resistance (0,8 bar) • Nickel plated Steel-Base material • Protects base material against corrosion • Nickel can withstand high temperatures • Black-Chrome selective top layer (Kf) • High solar absorption = 0.93 • Low Emission  = 0.12 • Resistant against high temperatures • Long experience in the field Thermosiphon France

6. Introduction Collectors Thermo siphon systems Multiple Thermo siphon systems Bt Collector • Full Copper absorber • 13 Copper riser tubes • Copper header tubes • Copper absorber plate • Maximum pressure of 10 bar Thermosiphon France • Bleu selective top layer • High solar absorption = 0.93 • Low Emission  = 0.10 • Resistant against high temperatures

7. Introduction Collectors Thermo siphon systems Multiple Thermo siphon systems Graphic Description of Black chrome • Absorber Exploded View Solar Radiation Black Chrome Thermosiphon France Thermal Radiation Nickel Layer Thermal Radiation Steel Absorber Plate Thermal Radiation Collector Waterway

8. Introduction Collectors Thermo siphon systems Multiple Thermo siphon systems IndustrialAutomatic Production Thermosiphon France