Natural circulation systems

 

Thermosiphonic systems / Natural circulation systems

Thermosiphonic systems , constitute the most widespread system in countries such as Southern Europe and Africa , since high ambient temperatures , do not act deterrently , concerning the installation place of the solar system.
This however is the case in countries of Central and Northern Europe.
The specific system consists of the collector , the storage tank and the mounting kit

Safe water use

High end inner treatment.
Special “DIRECT” inner enamel coating, according to ”DIN 4753 Teil 3&6” , for the protection of the public health. The enamelling process is certified by the enamel quality labelling DEV.
It is baked in an oven of super high temperature of 860C. The specific treatment secures the perfect obliteration of certain micro holes through future thermal shocks, but most importantly it protects the tank from oxidisation.
Double anode magnesium for protection against corrosion and electrolysis, according to ”DIN 4753 Teil 3&6″.
The inner of the storage tank , has been layered with an inactive material – mixture of inorganic silicon based salts , with no chemical aditives ( enameled ). The high baking temperature in 850C , has created a glass alloy , resulting the water to be so clean , that it can be used not only for hot water use , but also for other house uses. Completely safe for health , since it does not allow the development of bacteria based on DIN 4753 Teil 3 & 6. The enamelling process is certified by the enamel quality labelling (DEV).

Perimetric heat exchanger for achieving highest storing efficiency

Ultra high efficiency jacket which surrounds the 80% of the storage tank’s total area , and not a typical heat exchanger.
It includes the specific heat transfer liquid of the collectors ( water with propylene glycol, SI-P90 ) transferring heat using the maximum surface, towards the inner tank.

Powerful polyurethane insulation

Hot water , due to high density polyurethane of 45kg/m3 and 50mm thickness, CPC free. Using this kind of high density polyurethane, we succeed in achieving the highest system efficiency and heat storage during the year.
The polyurethane infusion, is done with a special pump, ensuring the precise injected quantity, along with the correct temperature of infusion.

Precise stratification of the domestic hot water

We use a special scatterer in the cold water inlet , so that an optimum heat layer is maintained.
The heat scatterer ensures that the cold water entering the tank, will not be mixed directly with the already hot stored water. With this way , we secure the best heat layer inside the tank, therefore increasing the hot water availability at any given moment.

 

 

Outer casing Αnodised aluminium of 0.6mm
Insulation Polyourethane C.F.C free,  p = 40kg/m², thickness 50mm
Storage tank thickness ( mm ) 2,5
Storage tank protection 850º C with enamelling process
Working pressure ( bar ) 10
Dimensions ( mm ) Φ520 x 1290
Jacket capacity in liquid( ( L ) 4,0
Weight ( kg ) 48
Outer casing Αnodised aluminium of 0.6mm
Insulation Polyourethane C.F.C free, p = 40kg/m², thickness 50mm
Storage tank thickness ( mm ) 2,5
Storage tank protection 850º C with enamelling process
Working pressure ( bar ) 10
Dimensions ( mm ) Φ520 x 1290
Jacket capacity in liquid ( L )  4,6
Weight ( kg )  57
Outer casing Αnodised aluminium of 0.6mm
Insulation Polyourethane C.F.C free, p = 40kg/m², thickness 50mm
Storage tank thickness ( mm ) 2,5
Storage tank protection 850º C with enamelling process
Working pressure ( bar ) 10
Dimensions ( mm ) Φ580 x 1290
Jacket capacity in liquid ( L ) 4,9
Weight ( kg ) 65
Outer casing Αnodised aluminium of 0.6mm
Insulation Polyourethane C.F.C free, p = 40kg/m², thickness 50mm
Storage tank thickness ( mm ) 2,5
Storage tank protection 850º C with enamelling process
Working pressure ( bar ) 10
Dimensions ( mm ) Φ520 x 1690
Jacket capacity in liquid ( L ) 5,8
Weight ( kg ) 90