El precio del gas sube cada mes en enero del 2004 era de y en enero del 2005 es de                                                                        El precio de gas LP  en el 2001 era de $.85 por litro en marzo de 2005 $4.10.                                                                         Los países desarrollados utilizan masivamente la energía renovable como fuente de energía.                                                                        No hay suficiente petróleo para satisfacer las demandas que va a haber dentro de años.                                                                        México ocupa el cuarto lugar como consumidor de gas licuado de petróleo a nivel mundial.                                                                        México ocupa el primer lugar mundial como consumidor de gas licuado para uso doméstico                                                                        Los expertos afirman que la temperatura se ha incrementado en 0,5 grados centígrados por la continua emisión de gases a la atmósfera.                                                                        La continua emisión de gases a la atmósfera provoca el ya popular efecto invernadero causante de desastres naturales.                                                                        Expertos aseguran que la producción de gas natural estará en su punto máximo en el 2020.                                                                        En la Unión Europea, para 2010 deberán estar instalados 100 millones de metros cuadrados de calentadores solares.                                                                        Sabías que instalando un calentador solar te ahorras el 80% des gas que utilizas regularmente.                                                                        La inversión en un calentador solar se recupera de 12 a 16 meses.

Glass Evacuated Solar Tube---continued

The heat pipe evacuated tube

Thermosol® uses a heat transfer pipe in our "High-Pressure System For Industries & Swimming Pools".

The heat pipe evacuated tube consists of the glass evacuated tube described above with the addition of a copper heat pipe that is sandwiched between two aluminum fins and inserted into the tube. Acetone is put into the copper pipe and as the tube is vacuumed the acetone will vaporize. The vapor rises to the tip (condenser) of the heat pipe where the heat is transferred to the water flowing through the manifold. The loss of heat causes the vapor to condense and flow back down the heat pipe where the process is once again repeated.

A copper pipe is inserted inside the glass tubes.
 
 
 
 

   

As the solar tubes are made from a specially developed thick borosilicate glass, after installation the chances of tube breakage is almost nil. The only precaution required is not to feed cold water in the empty system during the afternoon sunshine hours when the temperature inside a dry vacuum tube may go as high as 250ºC. If you add cold water, the tube could crack due to thermal shock. In the rare case of accidental breakage of the glass tube it is very easy to replace the single tube. Each Thermosol thermosiphon system comes with a plug that can be inserted into the tank until a replacement tube is installed.

With the evacuated tube you can expect an average output temperature as high as 55 to 95ºC. This will give you plenty of hot water if you consider that when having a shower the water temperature is usually around 32 to 43ºC.

Under normal conditions no maintenance of the system is required. Due to the shape of the tubes, regular rainfall and wind should keep the tubes clean. We do recommend that every three months you apply a simple solution of 5 parts water and one part of white vinegar to the outside of the tubes.

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