Solar energy collector using change of phase

摘要

The solar energy collector 10 with change of phase comprises an inclined collecting unit 12 comprising a number of tubes 18 for collecting solar energy partially filled with a fluid of liquid/vapour phases in equilibrium together with a condenser 14 and a condenser circuit 36 for the circulation of the vapour coming from the collecting tubes, for the condensation of this vapour by exchange with a working fluid and for the return of the liquid condensates to the collecting tubes. The collecting tubes 18 are connected to each other at their upper end by a vapour-collecting vessel 24 and at their lower end by a balancing pipe 26, and the condenser circuit comprises a single pipe 36 for the circulation of the vapour to the condenser 14 and for the return of the condensates, connected to the vapour-collecting vessel 24.