solar water heater

Specification data of solar flat plate collector:
Gross area: 2.25m2
Efficiency area: 1.91m2
Dimensions: 2,080 x 1,080 x 100mm
Gross weight: 53±3kg
Transparent cover:
Number of cover: 1 piece
Cover material: common glass, tempered and low iron tempered glass
Cover thickness: 4mm
Cover transmission: 89 to 91.4%
Dimensions: 1,980 x 980mm
Absorber:
Material: red copper
Surface treatment: galvanized chromium coating
Construction type: fin and tube (ultrasonic welding)
Dimensions: 1,840 x 956mm
Header material: copper TP2
Header tube size: 25 x 1,060 x 0.6mm/2 pieces
Rise material: copper TP2
Rise tube size: 12 x 1,886 x 0.5mm/7 pieces
Fill capacity: 1.8L
Including header pipe
Operating principle of solar central hot water system project:
Chill water goes into hot water storage tank via chill water supply system
When set water level is reached, chill water supply system stops operating
Chill water in hot water storage tank is reinforced into heat collector array via circulation-forcing water pump, where it is heated under solar radiation and increases in temperature
When the difference between water temperature in upper circulator of heat collectors and that at the bottom of hot water storage tank reaches set value, circulation-forcing pump is started and brings chill water from the tank to heat collector array while taking hot water in heat collector array back to hot water storage tank
When said difference equals or drops below set value, circulation-forcing pump stops operating
Chill water in heat collectors continues to be heated under solar radiation
Circulation in this way causes water temperature in hot water storage tank to rise time and again