Application

Only a portion of the fuel energy released by marine engines

actually goes to propulsion. A large amount of it escapes as

heat, and it makes sense to reclaim as much of this energy

as possible. This is true not only for main engines, but for

auxiliary engines as well.

Steam produced with the Aalborg XS-2V or XS-7V can

support or fulfil steam needs in port, but it can also serve

other functions. For vessels whose long-stroke main engines

produce cooler exhaust, it can provide a needed steam

boost during a voyage. If there is no steam shortage while

sailing, the additional steam produced with the economizer

can be used to generate electricity, for example by means

of Organic Rankine Cycle (ORC) technology.

Benefits

• Simple and reliable design based on smoke tubes

• Easy improvement of Carbon Intensity Indicator (CII)

• Short payback time (typically 1–2 years) through up

to 25% fuel savings on the fired boiler

• Reduced wear and maintenance on the fired boiler

• Dual-inlet option allowing connection of two engines

to one economizer