VACUUM TUBE COLLECTORS CVT
Solar collectors for solar thermal systems with forced circulation
Cordivari CVT solar collectors are composed of a series of vacuum tubes Sydney type, that captures the incidence of solar energy. Thanks to the vacuum technology, this kind of collector can reach high performances even in colder seasons.
The collectors CVT are designed with heat pipe technology that allows a better maintenance and protection against stagnation.
COMPOUND PARABOLIC CONCENTRATOR (CPC)
A special CPC behind the tubes leads the sunlight, even from diff erent angles, exactly to the absorber. This system allows Cordivari vacuum tube collectors CVT to reach high performances with small dimensions and maximum energy absorption, direct or indirect.
HEAT PIPE TECHNOLOGY
The pipe heats up with the heat coming from the absorber and vaporizes the small quantity of fluid that naturally raises to the top, then it condenses and transfers heat to the heat-transfer fluid of the primary circuit and comes back to liquid state.
Heat pipes are placed inside the double concentric tubes made in borosilicate glass (Sydney type). Thanks to its insulating properties (thermos effect), the vacuum between the glass pipes drastically reduces the heat loss, increasing the available energy captured from the sun.