Difference Between Active & Passive Solar Heating
  • Solar energy is nonpolluting and renewable. Different kinds of technologies can harness solar radiation and convert it into solar energy. Buildings can employ either active or passive solar heating. Each method has its own set of advantages and disadvantages.

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    A greenhouse is a classic example of passive solar heating system.

    Active Solar Heating

    The active solar heating system captures solar radiation through mirrors and mirror plates. The solar radiation is absorbed by a collector, which converts the harnessed solar radiation into heat. The collector is designed in the form of a box or a pipe, which contains water, anti-freeze substances or air. As the solar radiation falls on the mirror plates, it is directed to the collector, and solar energy is produced. The air or the liquid present in the collector gets heated up because of the solar energy. The heated gas or liquid from the collector is transferred to various parts of the building using a pump or a venting mechanism, and this helps in heating up the entire building.

    Active Solar Energy Use

    Liquid-based active solar heating systems are used to heat water in swimming pools, homes, industrial setups or commercial buildings.

    Air-based active solar heating systems are used to heat up homes. Solar panels can be used to power the pumps and fans, which are used to circulate heated air around closed spaces such as rooms, hallways, kitchen areas and garages. This heating system is also perfect for use with an existing heat-radiating system. The heated air or liquid can be easily pumped through the arrangement of pipes or tubes that are concealed beneath the floors of the building or behind the walls.

    Elena Rostova

    Elena Rostova

    Lead Health, Wellness & Medical Journalist

    Elena Rostova holds a Master's degree in Public Health Journalism. She covers groundbreaking medical research, holistic wellness trends, mental health awareness, and nutritional science.

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