Solar energy plant including cells supplying circulating pump - to protect against overheating and ensure economic operation

摘要

A heating installation utilising the energy of the sun is protected not simply against uneconomic operation when the temp. at the collector is lower than that in the storage vessel, but also protects the collector itself against damage by overheating in the event of a power failure to the pump. Beside the collectors, solar cell(s) are provided and are connected to the pump motor. This is partic. advantageous since precisely when overheating could cause damage, the output of the solar cells would be at its maximum.