Waste Heat Recovery Economizer after Auxiliary Engines
Auxiliary engine waste heat has not been considered in the past, but it actually contains a large amount of energy. Energy that can be utilized supplementing steam requirement during port stay and – for some vessels – also during voyage.This signifi cantly helps reducing oil consumption on the oil fi red boiler.
To ensure the most advantageous design, the economizer will be tailor made to the individual ship and engine specification with due consideration of existing uptake, back pressure, etc.
The economizer is produced in two designs, one requiring steam space in another boiler (e.g. in existing boiler) and one that has its own steam space.
This new product will provide operational savings while improving the green image and environmental profi le of the ship and the company.
Connection of waste heat economizer after AUX engines
Example of savings in kg/h fuel at 80% MCR :