Solar Hot Water Systems
Solar
has been becoming more and more popular in providing domestic hot water
for residential applications. The two type of collectors most frequently
used is flat plate or vacuum tube. The flat plate collector known as
the Viessmann Vitosol 100 is made of materials such as powder coated
aluminum, copper and stainless steel, as well as 4mm special low iron
solar glass and non degrading thermal insulation. The main component
of the Vitosol 100 is the Sol-titanium coated copper absorber. It insures
high absorption of solar radiation and low emission of thermal radiation.
This system is typically installed on the roof in a south facing direction
at approximately a 30 to 35 degree inclination. This system is also
installed using a double coil Hot water storage tank. The one coil
would be feed from the collector while the other from an additional
heat source such as a boiler. This is done because the solar is not
an independent source of domestic hot water. You would expect to get
approximately 66% of your annual needs out of this system.
The
other more efficient type of collector is known as the Vacuum Tube,
or Viessmann Vitosol 300. This type of panel has two heat exchangers.
The heat is collected in one heat exchanger which is in a negative
gas state. Thus during a rapid drop in temperature you would not loose
the heat that you have gained from the day to the outside temperature.
The other exchanger is the hot water circulating to the double coil
storage tank. Both of these system are supplied with inlet and outlet
temperature gages. Air Elimination, premixed glycol, expansion tank,
purge station & other piping and accessories. To learn more visit
www.viessmann-us.com.
