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b. Accumulators
Solar radiation does not usually coincide with the actual
consumption of domestic hot water or heating, and the
energy provided by the sun must therefore be retained for
later consumption. The energy is stored by increasing the
temperature of the water contained in the accumulator.
Solar accumulators are normally equipped with an integrated
heat exchanger which transfers the energy captured by the
collectors into water for consumption. In large installations,
the heat exchanger is normally a separate element, as a large
heat exchanging surface cannot be contained in the
accumulator.
c. Hydraulic components
A solar heating installation is a hydraulic circuit, and it must therefore include a series of components for both correct functioning
and safety purposes.
As a component manufacturer, Orkli provides a wide range of valves and accessories for creating a solar heating system.
d. Regulation
The regulation system controls the pump and the motorised valves in order to achieve correct energy transmission from the panels to
the fluid to be heated. It decides when the pump should work and the position of the valves according to the temperatures at various
points on the circuit, generally the collectors and the accumulator.
e. Support system
This assures the user receives heating and hot water on days when there is insufficient solar radiation to satisfy the demand.
SOLAR THERMAL CONTROLS
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