The Alfa Laval Aalborg XS-TC7A is an efficient

smoke-tube economizer. Easy to install, operate

and maintain, it reduces the use of the fired boiler

by recovering heat energy that otherwise would

be lost through the exhaust gas. This ensures

a rapid return on investment.

Thanks to the helix shape of its smoke tubes,

the Aalborg XS-TC7A offers a large heat transfer

area within a compact footprint. This enhances

its performance and makes it the smallest smoke

tube economizer on the market.

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-TC7A 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.