Solar Water Heaters

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Solar Water Heaters

Solar energy is an Abundant, Clean and Free resource that can be used to supplement many of our energy needs. Solar energy can be utilized as a form of heat, to heat water. Hence Solar Water Heater (SWH) and is one of the most cost-effective uses of solar energy, providing hot water for homes, hostels, hotels, hospitals, restaurants, dairies, industries etc.

With spiraling cost of electricity and fast depleting fossil fuel that are polluting the environment SWH is a healthy alternative which not only saves money but also runs for a long time.

Solar water heaters do not pollute. By investing in one, you will be avoiding carbon dioxide, nitrogen oxides, sulphur dioxide, and the other air pollution and wastes created when your utility generates power or you burn fuel to heat your household water. When a solar water heater replaces an electric water heater, the electricity displaced over 20 years represents over 50 tons of avoided carbon dioxide emissions alone and saves roughly 1500 units of electricity annually or 30000 units in its life time.

Solar energy provides “power security”, enabling you to continue getting power even when utility power is disrupted. Using solar energy is free and it is an environmentally friendly source of power.

ETC Solar Water Heater

The ETC solar water heater is made up of rows of parallel, transparent glass tubes. Each tube consists of a glass outer tube and an inner tube, or absorber, covered with a selective coating that absorbs solar energy well but inhibits radioactive heat loss. The air is withdrawn (“evacuated”) from the space between the tubes to form a vacuum, which eliminates conductive and convective heat loss. The ETC absorbs the heat from the solar radiation & heats up the water stored in the system through the Thermos phonic effect.

FPC Solar Water Heater

This type of flat plate collector is made with single body structure with a unique glass locking mechanism. The advantages of this type of collector over normal collector are the higher efficiency and the elegant look. The cold water from the solar tank in turn flows in the bottom header pipe of the absorber, and into the copper tubes, until all the absorber tubes and the header at the top of the absorber are full. When the sun rises to a certain level, its energy, which falls on the absorber fins and tubes, begins heating the water contained therein. The heated water being lighter than the cold water rises and via the top header pipe of the absorber, flows into the top of the solar tank . The more cold water from the solar flows into the absorber tubes gets heated and rises to the top, and so on.