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Description of the Components:Type: Vaccum Tube collector with heat pipe conceptTotal Area: 1.708 m * 1.466 m = 2.504 m2Aperture Area: 1.248 m2Absorber Area: 1.058 m2Heat Transfer fluid: Water/propylen-glycolOuter Diameter of the cover tube: 47mmThickness of the cover tube: 1.65mmOuter diameter of the inner tube: 37mmThickness of the inner tube: 1.65 mmLenght of the tubes: 1500 mmDistance from tube to tube: 75 mmNumber of tubes: 20Construction of the absorber:  sputtered glass tubeMaterial of the contact sheets:  AluminiumThickness of the contact sheets:  0.2 mmDimension of the contact Sheets: 340mm * 72 mmNumber of contact Sheets per tube: 8Material of the heat pipes: CopperNumber of heat pipes: 20Outer diameter of the heat pipes: 8 mmInner diameter of the heat pipes: 7.2 mmLenght of the heat pipe condensor: 50mmDistance between the pipes: 75 mmMaterial of the header Pipe: CopperOuter Diameter of the header pipe: 22 mmVolume of the fluid in the header: 1.1 LCollector Di