Description

collector Dimension Φ******0 Φ******0 Material of Tube 3.3 High Boron Silicon Glass Expansion Ratio 3.3±0.1×***6K*1 3.3±0.1×***6K*1 Outer Diameter of Tube Φ*7±0.1 Φ*8±0.1 Inner Diameter of Tube Φ*2.8±0.*5 Φ*3.8±0.*5 Thickness of Glass 1.6±0.2 Transmittance ≥0.*9 ≥0.*9 Lenth of Tube ***0±0.5 ***0±0.5 Selective Coating AL-N/AL Absorptivity ≥0.*6(AM1.5) Emissivity ≤0.**0(*0±5) Vacuum Degree ≤5.0×***3Pa Collecting Performance Parameter under Sunshine ≥**0m2/kw Hailstone Resistance *5mm Size of Condenser head Φ*3.3×*8±0.1 mm Material of Copper Pipe TU1(Purified copper trace amounts of oxygen) Thickness of Copper wall 0.7mm Weight of Copper Pipe **3 g **6 g Liquid in Copper Pipe Purified Water Startup Temperature *2±2 Material of Frame Aluminium Alloy