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How Does Solar Water Heater Work?
Solar water heaters are an eco-friendly and energy-efficient way to heat water for your home. In this article, we'll give you a step by step guide on how a solar water heater works.
1. Collectors:
The first component of a solar water heating system is the collector. This is where the energy from the sun is harnessed. The collector is made of black solar panels that absorb solar energy and convert it into heat. The heat is then transferred to a fluid, typically water or a mix of water and antifreeze, which circulates through the panel. The fluid is heated and then transferred to a storage tank.
2. Storage Tank:
The storage tank is the second component of a solar water heating system. This is where the hot water is stored until it is needed. The tank is typically located in a closet or basement. It can be made of a variety of materials, including steel, fiberglass, and concrete. The size of the tank will depend on the size of the system. For example, a tank for a family of four would typically be about 80 gallons.
3. Heat Exchanger:
The heat exchanger is the third component of a solar water heating system. This is often a coil of copper tubing inside the storage tank. The hot fluid from the collector passes through the heat exchanger, heating the water in the tank. As the water is heated, it rises to the top of the tank, displacing colder water, which then sinks to the bottom of the tank.
4. Controller:
The controller is the brains of the solar water heating system. It monitors the temperature of the collector and the storage tank and controls the circulation of the fluid between the two. If the temperature in the collector is higher than the temperature in the storage tank, the controller will turn on the circulation pump, which will circulate the hot fluid from the collector to the heat exchanger in the storage tank. If the temperature in the collector is lower than the temperature in the storage tank, the controller will turn off the pump.
5. Auxiliary Heater:
An auxiliary heater is an optional component of a solar water heating system. It is typically an electric or gas-fired water heater that is used to supplement the solar system during periods of high demand or low solar gain. This means that the auxiliary heater will only kick in when the hot water demand exceeds the capacity of the solar system.
In conclusion, solar water heaters are an energy-efficient and eco-friendly option for heating water in your home. The system works by harnessing the energy of the sun and converting it into heat, which is then transferred to a storage tank and used when hot water is needed. By using a solar water heating system, you can reduce your carbon footprint and save money on your energy bills.
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