Thermosiphon System

Thermosiphon solar water heater relies on the natural circulation of water between the collector and the tank or heat exchanger. As water in the vacuum tubes is heated, it rises naturally into the tank, while cooler water in the tank flows down to the bottom of the vacuum tubes, causing circulation throughout the system.

Technical Specifications

  Inner tank shell is made of SUS3042B food grade stainless steel plates,welded by argon arc.Water is pure and drinkable.Outer tank is made of SUS3042B food grade stainless steel plates or color steel.
  Heat insulation of water tanks adopts polyurethane foam,thickness is 55mm.

  Silicon rings to connect and seal them.

  The tubes and supports are adjustable, power bearing is average,and can assure the vacuum tubes to use for long time.

  Whole glass vacuum tubes adopt super hard borax and silica glass.

  Absorb mte:=93%,thermal radiation rate :=6%( 100℃ )

  Resist 25mm hail, using life can last 15 years.Qm Temperature when exposed to sun without water :250℃ , 2.5 hours to boiling if using single tube.

  If you use electrical appliances to aid heating, to switch off the power supple before boiling.   To test the water temperature before using, in order to avoid scalding.

Model    Absorbing        Vacumm Tube        Tank    Qity-per20’/40’    
    Area(m2)    Diameter(mm)        Length(mm)    No.(pcs)    Capacity(L)    Container    
BSC/SS 420-1500/47-15    0.75    47        1500    15    85    66/137    
                                
BSC/SS 420-1500/47-18    0.90    47        1500    18    100    56/115    
                                
BSC/SS 420-1500/47-20    1.00    47        1500    20    111    50/105    
                                
BSC/SS 420-1500/47-24    1.20    47        1500    24    135    44/92    
BSC/SS 420-1500/47-30    1.50    47        1500    30    166    36/75    
                                
BSC/SS 470-1500/47-15    0.75    47        1500    15    113    51/102    
BSC/SS 470-1500/47-18    0.90    47        1500    18    140    44/88    
                                
BSC/SS 470-1500/47-20    1.00    47        1500    20    150    42/84    
                                
BSC/SS 470-1500/47-24    1.20    47        1500    24    180    33/66    
                                
BSC/SS 470-1500/47-30    1.50    47        1500    30    230    30/60    
                                
BSC/SS 470-1800/58-16    1.28    58        1800    16    133    44/91    
                                
BSC/SS 470-1800/58-18    1.44    58        1800    18    150    39/81    
                                
BSC/SS 470-1800/58-20    1.60    58        1800    20    165    35/73    
BSC/SS 470-1800/58-24    1.92    58        1800    24    200    30/62    
                                
BSC/SS 470-1800/58-30    240    58        1800    30    250    24/50    
BSC/SS 470-1800/58-36    2.88    58        1800    36    300    20/40    
                                

Note:

Absorber area is the part of the collector that actively absorbs the light rays. For solar tubes this is defined as the cross-sectional area of the inner tube (selective coated) measured using the outside diameter.(Eg. 0.047x 1.72m = 0.08 m2)