Diesel engines typically convert no more than 33% of the energy contained in their fuel in mechanical energy; about 25% of the energy input ends up in the cooling circuit and 33% in the exhaust gases (source: SAE). So, it is evident how any intervention having the purpose of recovering at least a part of that large waste of energy is welcome.

Zuccato Energy ORC modules – thanks to their low operating temperatures – represent an excellent choice to recover waste heat from a wide range of engines and gensets, to which they may be interfaced safely and easily through a simple hot- or overheated-water loop that insures efficiency, safety and simple engineering.

Heat wasted by an internal combustion engine can be recovered in different places:

• Exhaust gases, by inserting a fume/water heat exchanger in the exhaust piping;
• Engine cooling jackets, by inserting a water/water exchanger in the cooling water circuit;
• Oil cooling circuit, particularly in larger-size engines (e.g. naval applications).