A solar geyser is an efficient renewable energy system that harnesses solar energy to provide hot water for residential or commercial use. It offers a sustainable alternative to traditional methods while utilizing a solar collector, heat exchanger, and optional backup systems for uninterrupted supply.
A solar geyser, sometimes referred to as a solar water heater or solar hot water system, is a renewable energy technology designed to harness solar energy for heating water in various home or commercial applications. It offers a more sustainable and environmentally friendly alternative to traditional water heating methods that rely on fossil fuels or electricity.
A solar geyser system operates through several stages. The process begins with a solar collector, typically placed on the roof or a location with maximum sunlight exposure. This collector is made of solar panels or tubes lined with a heat-absorbing material. These panels may have special coatings to increase their ability to capture sunlight.
When sunlight hits the collector, it is absorbed and converted into heat by the material within the panels or tubes. This solar energy absorption is highly efficient, even on cloudy days. The heat is then transferred to a fluid, typically a heat-transfer fluid like antifreeze or a water-glycol mixture, circulating through the collector’s pipes or tubes.
The heated fluid travels through a heat exchanger located inside a well-insulated storage tank. This heat exchanger consists of a coil or group of tubes immersed in cold water, transferring the heat from the fluid to the water. As a result, the water’s temperature rises.
The hot water generated is stored in an insulated tank designed to prevent heat loss, ensuring that the water remains hot for long periods until needed. The system can employ either an active or passive circulation method. In a passive system, cold water flows into the collector naturally as hot water rises into the tank. In an active system, a pump circulates the heat-transfer fluid, providing more control over the process.
To ensure a constant supply of hot water during cloudy days or periods of high demand, solar geyser systems often incorporate a backup heating element, such as an electric or gas heater. These backups are used sparingly to optimize energy savings.