GESAB-HTI Exhaust Gas Heaters, heated by waste gases from the vessels's main engine, is commonly used in satisfying the heat demand of the vessel's bunker heating, accommodation, calorifier water and pre-heaters during the voyage. It may also be sufficient to heat the cargo, subject to heat requirement.
Design and construction:
The heating surface of the economizer consists of a number of spirally wound heating sections which are connected in parallel to a common inlet and outlet manifolds. The high speed of gas flue outside the smooth tubes, create a self cleaning effect.
Inside the economizer, there are water feed ring lines, fitted with nozzels, for both cleaning of the economizer and for fire extinguishing purposes.