What is a forced circulation solar system?

A forced circulation solar system is a solar thermal installation in which water circulates within the circuit driven by a pump. Unlike solar installations with a thermosiphon, this system does not move hot water to the highest point of the closed circuit, but rather makes it go down from the solar collectors to where the storage tank is located.

What are solar thermal energy installations with forced circulation?

Solar thermal energy installations with forced circulation have the following elements: Solar collectors are responsible for transforming solar radiation into thermal energy.

How do solar thermal systems work?

In these solar thermal systems, the water that circulates between the solar collectors and the accumulator cannot do so by natural convection since the hottest water is already at its highest point. To do this, you will need a conventional water pump and, therefore, an external electrical power source.

Why is solar energy required in underfloor heating systems?

This renewable energy system is required in underfloor heating systems. In these solar thermal systems, the water that circulates between the solar collectors and the accumulator cannot do so by natural convection since the hottest water is already at its highest point.

Can a solar accumulator be vertical or horizontal?

In forced circulation installations, vertical and/or horizontal solar collectors can be used interchangeably depending on integration criteria, although vertical ones have better performance. The accumulator is a tank where heated water is stored.

What are the components of a forced circulation system?

Flow regulator, which will allow the circuit flow to be adjusted. Filter, which will guarantee the durability of the circuit elements. Forced circulation systems are solar thermal energy installations in which a water pump is needed to circulate water.