INSTANTANEOUS EFFICIENCY CURVE OF CALPAK 14 VTN COLLECTORS INSTANTANEOUS EFFICIENCY CURVE OF CALPAK 14 VTN COLLECTORS INSTANTANEOUS EFFICIENCY CURVE OF CALPAK 14 VTN COLLECTORS INSTANTANEOUS EFFICIENCY CURVE OF CALPAK 14 VTN COLLECTORS INSTANTANEOUS EFFICIENCY CURVE OF CALPAK 14 VTN COLLECTORS 00,1 0,20,30,40,50,6 0,70,80,91 00,010,020,030,040,050,060,070,080,090,1 00,1 0,20,30,40,50,6 0,70,80,91 00,010,020,030,040,050,060,070,080,090,1 00,1 0,20,30,40,50,6 0,70,80,91 00,010,020,030,040,050,060,070,080,090,1 00,1 0,20,30,40,50,6 0,70,80,91 00,010,020,030,040,050,060,070,080,090,1 00,1 0,20,30,40,50,6 0,70,80,91 00,010,020,030,040,050,060,070,080,090,1 ( ( ( ( ( m- m- m- m- m- a)/G* a)/G*

a)/G* a)/G* a)/G*

Technical characteristics Technical characteristics

Technical characteristics Technical characteristics Technical characteristics 14VTN 14VTN

14VTN 14VTN 14VTN Collector: Collector: Collector: Collector: Collector: External dimensions: length / width / height 1610 mm / 1600 mm / 110 mm External dimensions: length / width / height 1610 mm / 1600 mm / 110 mm External dimensions: length / width / height 1610 mm / 1600 mm / 110 mm External dimensions: length / width / height 1610 mm / 1600 mm / 110 mm External dimensions: length / width / height 1610 mm / 1600 mm / 110 mm Weight 41 kg Weight 41 kg Weight 41 kg Weight 41 kg Weight 41 kg Gross area 2,50 m Gross area 2,50 m
Gross area 2,50 m Gross area 2,50 m Gross area 2,50 m 2 2 2 2 2 Aperture area 2,27 m Aperture area 2,27 m
Aperture area 2,27 m Aperture area 2,27 m Aperture area 2,27 m 2 2 2 2 2 Number of vacuum tubes 14 Number of vacuum tubes 14 Number of vacuum tubes 14 Number of vacuum tubes 14 Number of vacuum tubes 14 Glass cover tube external diameter 47 mm Glass cover tube external diameter 47 mm Glass cover tube external diameter 47 mm Glass cover tube external diameter 47 mm Glass cover tube external diameter 47 mm Glass cover tube length 1500 mm Glass cover tube length 1500 mm Glass cover tube length 1500 mm Glass cover tube length 1500 mm Glass cover tube length 1500 mm Cover material Borosilicate glass Cover material Borosilicate glass Cover material Borosilicate glass Cover material Borosilicate glass Cover material Borosilicate glass Cover thickness 1,5 mm Cover thickness 1,5 mm Cover thickness 1,5 mm Cover thickness 1,5 mm Cover thickness 1,5 mm Vacuum p < 0,005 Pa Vacuum p < 0,005 Pa Vacuum p < 0,005 Pa Vacuum p < 0,005 Pa Vacuum p < 0,005 Pa Absorber: Absorber: Absorber: Absorber: Absorber: Absorber material: copper tubes with external diameter aluminum fin 9,5 mm 0,8 mm Absorber material: copper tubes with external diameter aluminum fin 9,5 mm 0,8 mm Absorber material: copper tubes with external diameter aluminum fin 9,5 mm 0,8 mm Absorber material: copper tubes with external diameter aluminum fin 9,5 mm 0,8 mm Absorber material: copper tubes with external diameter aluminum fin 9,5 mm 0,8 mm Surface treatment Sputtered selective Surface treatment Sputtered selective Surface treatment Sputtered selective Surface treatment Sputtered selective Surface treatment Sputtered selective Absorption coefficient a > 0,92 Absorption coefficient a > 0,92 Absorption coefficient a > 0,92 Absorption coefficient a > 0,92 Absorption coefficient a > 0,92 Emission coefficient e < 0,08 Emission coefficient e < 0,08 Emission coefficient e < 0,08 Emission coefficient e < 0,08 Emission coefficient e < 0,08 Absorbing surface glass tube diameter 33 mm Absorbing surface glass tube diameter 33 mm Absorbing surface glass tube diameter 33 mm Absorbing surface glass tube diameter 33 mm Absorbing surface glass tube diameter 33 mm Fluid content 3 l Fluid content 3 l Fluid content 3 l Fluid content 3 l Fluid content 3 l Heat transfer medium: open circuit closed circuit Water Glycol brine Heat transfer medium: open circuit closed circuit Water Glycol brine Heat transfer medium: open circuit closed circuit Water Glycol brine Heat transfer medium: open circuit closed circuit Water Glycol brine Heat transfer medium: open circuit closed circuit Water Glycol brine Insulation and Casing: Insulation and Casing: Insulation and Casing: Insulation and Casing: Insulation and Casing: Thermal insulation thickness of header 30 mm Thermal insulation thickness of header 30 mm Thermal insulation thickness of header 30 mm Thermal insulation thickness of header 30 mm Thermal insulation thickness of header 30 mm Insulation material of header Fiber glass + Expanded Polyurethane Insulation material of header Fiber glass + Expanded Polyurethane Insulation material of header Fiber glass + Expanded Polyurethane Insulation material of header Fiber glass + Expanded Polyurethane Insulation material of header Fiber glass + Expanded Polyurethane Casing material Aluminum Casing material Aluminum Casing material Aluminum Casing material Aluminum Casing material Aluminum Diameter of connections 22 mm Diameter of connections 22 mm Diameter of connections 22 mm Diameter of connections 22 mm Diameter of connections 22 mm Limitations: Limitations: Limitations: Limitations: Limitations: Maximum temperature of operation 220 °C Maximum temperature of operation 220 °C Maximum temperature of operation 220 °C Maximum temperature of operation 220 °C Maximum temperature of operation 220 °C Maximum operating pressure 10 bar Maximum operating pressure 10 bar Maximum operating pressure 10 bar Maximum operating pressure 10 bar Maximum operating pressure 10 bar Pressure tested in production 15 bar Pressure tested in production 15 bar Pressure tested in production 15 bar Pressure tested in production 15 bar Pressure tested in production 15 bar Output for Germany (Würzburg) 525 kWh/m Output for Germany (Würzburg) 525 kWh/m
Output for Germany (Würzburg) 525 kWh/m Output for Germany (Würzburg) 525 kWh/m Output for Germany (Würzburg) 525 kWh/m 2 2 2 2 2 /year /year /year /year /year Certification: Certification: Certification: Certification: Certification: EN 12975-2 / ISO 9806-1 EN 12975-2 / ISO 9806-1

EN 12975-2 / ISO 9806-1 EN 12975-2 / ISO 9806-1 EN 12975-2 / ISO 9806-1