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Heat exchangers in solar water-heating systems

  • Heat exchangers in solar water-heating systems resemble a pipe or pipes within a larger pipe. The pipe containing the water to be heated passes through a larger pipe that is flowing the fluid from the collector panel, allowing the heat of the sun to transfer into the water. Most collectors used for water heating are of the mid-temperature type as shown in the box-shaped collector diagram above. Certain industrial and institutional applications of solar water heating use ‘evacuated tube’ collectors. Welding a heat-collecting metal plate to a water pipe and placing it inside a vacuum tube allows the equipment to heat water to a temperature of 3500F. Cost trade-offs must be considered when choosing one type of system over the other.

    Zhejiang Uniepu New Energy Co ltd is an integrated enterprise professional working on the renewable energy and new material products' development production and sales since 2009. Our products including solar hot water, solar water heater, solar thermal, solar photovoltaic system for house and solar accessories.

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