Calentador Solar Para Pileta - DIY
Solar Pool Heather - DIY
It was performed on 1.2 kilometers long (1200 meters or 3600 feet ) 1/2 inch (13 mm ) of cheap irrigation black pipe
The main circuit (carrying water from and back to the pool) was built using 1 inch (25.4 mm) black irrigation tubing.
This main circuit is about 20 meters long (60 feets) both tubes runs in a parallel configuration (side by side)
These waterflow, were divided into 6 attached coils, where each one is 200 meters long of black pipe.
Each circuit (coil itself ) is 200 meters long (600 feets)
Each coil was built using 2 segments of 100 meters long (300 feets each) irrigation cheap black pipe.
Both segments were joined by a "hose to hose" connector and secured by 2 clamps, thats the 200 meter for each heating coil.
This system, uses a 1HP water pump ,(750 watts/hour, VCA 220 Volts, 50Hz , 86 liters per minute, 22.72 gallons per minute), wich pumps cold water (or not so cold) taken from the pool and sent to my roof by these 2 main lines (1 for cold and 1 for hot water) , then the water runs through one of the 200 meters circuit coil , and then returns to the pool.
As water runs through , being part of one of these 6 circuits of 200 meters each , the water absorbs some part of the sun heat gained at the black pipe walls and transferred to water.
On November 15/2020, in Belen de Escobar , Buenos Aires, Argentina, an absolutely sunny day, the temperature gain was +8 C (46.4 F) FROM the input water temperature at a rate of 87 liters per minute / 22.72 Gallons at 1:00 pm (44.6 to 50 farenheit gain from input temperature.)
The pool water hits 33C degrees (91.4F) at that point I performed a shutdown to the system , to avoid overheat of the water in the pool.
Water temperature can be dramatically and quickly increased up to 60C/140F (maybe more) degrees if we slow down the water flow rate.
Working pressure of water tubing on operation is 1.8 kg/cm2
Maximun pressure supported by tubing is 4 kg/cm2
It is very important to get a cheap "pluribol" cover (that cheap plactic with bubles used commonly to wrap or protect goods or things to travel by mail or similar uses)
You must cover the pool water with this plastic, until use, specially overnight.
It is strongly recomended if you live in an "more or les" cold climate, less than 12-15C air temperature during night, you must cover the pool, and take off the plastic ONLY when youre gonna use the pool
Remember: cover your pool every afternoon to avoid the heat loss during night hours.
Also I've painted in a "light sand" color my pool , it is 42.236 liters (11,181.34 gallons) water capacity. (Ive posted here some pics of that work) Color Code / Sherwin Willims 6112
The water pool weigts 42 tons.
I assume if I paint the pool in a dark colour the water will gain more temperature, but visually this dark colors are not in my preferred choices.
I am open to receive comments or questions m_semino@hotmail.com
Comments m_semino@hotmail.com
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