Interlinked to your equipment operating mode or to the rejects coming from your activity, fatal energy sources are plentiful and far from recovery particularly in the heat production.
In fact, during the operating of your industrial process, part of the thermic energy production is not used and will be rejected.
However, recovery and valorisation of these heat rejects could find their application to pre-heat fluids with recuperation made by a stockage tank.
The vocation of this stockage tank is to concentrate all different localized heat sources, for injection in product hot water tank. The pre-heating will be operating too by the thermic solar energy, free and unlimited energy source.