Kopenhagen, Dipl.-Ing. Reinhold Weiser Geschäftsführender Gesellschafter / Managing Partner

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1 Kopenhagen, Thema/issue: Solarthermie Dipl.-Ing. Reinhold Weiser Geschäftsführender Gesellschafter / Managing Partner AkoTec Produktionsgesellschaft mbh

2 AkoTec Produktionsgesellschaft mbh started in January in 2008 registered office: Angermünde, Germany development and production of high-tech vacuum tube collectors manufacture of NARVA vacuum tubes automated manufacture of collectors practice: single- or multi family houses, solar thermal big plants, solar thermal cooling and process heat, sea water desalination

3 Tube product variants direct flow features: coaxial-manifold coaxial tube in tube tube and manifold will be direct flowed by the heat transfer medium features: tube with condenser dry connection into manifold medium flowes only through manifold heat pipe

4 Advantages direct flow collector: plug-in connection tube manifold (super easy to assamble without screwing) tubes 360 rotatable (optimate adjustment to the sun) self-supporting construction (no need for an expansive rack) distance between tubes always the same (even with more than one collector in a field) to be assambling on the roof (one man assambling) assambling facilities: 90 facade, flat roof, tyled roof power tubes from Narva with double coated absorber (with it much more power with using of reflecting irradiation)

5 advantages heat pipe collector: automatically cut-off by 160 C ( no overboil of the plant with missing heat extraction) dry connection between tubes and manifold (extra easy to change) tubes 360 rotatable (optimate adjustment to the sun) self-supporting suppo construction o (no need for an expansive e rack) distance between tubes always the same (even with more than one collector in a field) to be assambling on the roof (one man assambling) power tubes from Narva with double caoted absorber (with it much more power with using of reflecting irradiation) only 20 minimum angle neccessary

6 Domestic water heating and heating support (different assambling samples single- or multi family houses)

7 Solar process heat (com. using: sample paint shop) place: paint shop, Meppen, germany plant: ca. 84 KWp; 12 fields á 70 DF Power tubes, all together 137m² collekcor area, two 5,000 ltr buffer store function: process heat for paint and dry (paint room constant 24 C, dry room 70 C)

8 Domestic water heating and heating support (com. using:sample hotel) place: Hafencity Hotel 25 hours, Hamburg, Germany plant: ca. 77 kwp; 2 fields a 280 and 490 direct flow Power tubes, m², flat roof assambling, 3 buffer tank a 1500l function: water heating

9 Domestic water heating, heating support and cooling (com. using: sample retirement village) place: Oxford Gardens, Woodstock, Kanada plant: ca. 325 KWp; m², (54 x 60 tubes) Buffer store: 13,000 Ltr Absorbtion refrigerator Yasaki WCF- 5C30, cooling power: 105 KW (weight: 1.8 t), 1,200 mtr pipeline f i function: water heating, pool- and room heating, cooling

10 Solar cooling (com. using: sample computer center Deutsche Telekom) place: Rottweil, Germany plant: m² area (62 x 50 collectorc field) buffer store: 20,000 ltr expansion vessel: 2x 600 ltr Absorption refrigerator: 2 Mitsubshi des Typ ES-IA 2MW (cooling power: je 340 KW) Function: cooling from host system

11 Sea water desalination (com. using: sample hotel) place: Hotel, Hurghada, Ägypten plant: ca. 50 KWp; 480 direct flow Power tubes, 78.5m², flat roof asambling, 2 x 5m³ Fresh water tanks function: sea water desalination

12 Thank you for listening! Dipl. -Ing. Reinhold Weiser Phone: AkoTec Produktionsgesellschaft mbh