Alfa Laval Aalborg XS-2V Robust Smoke-tube Economizer

The Alfa Laval Aalborg XS-2V is a robust smoke-tube economizer.

Easy to install, operate and maintain, it reduces the use of the fired

marine boiler by recovering heat energy that otherwise would be lost

through the exhaust gas. The Aalborg XS-2V is similar to the Aalborg

XS-7V, but it is equipped with its own steam space, which makes it a

complete exhaust gas boiler. Its proven design includes a dual-inlet

option, which creates high installation flexibility.

Dual-inlet flexibility and steam independence

• Simple and reliable design based on smoke tubes – with its own

steam space

• 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

Reduce fuel costs and emissions

The Aalborg XS-2V is part of Alfa Laval’s broad waste heat recovery

portfolio, which builds on over 40 years of waste heat recovery experience.

We take a holistic approach, helping you identify the optimal economizer

setup for your particular vessel.

Our solution is always tailored to your steam requirements, the amount

of exhaust gas and your vessel’s unique characteristics.

It can include:

• Smoke-tube or water-tube economizers

• Single-inlet or dual-inlet solutions

• Compact economizers to minimize installation footprint

The economizer is carried out with the smoke tubes welded to the tube

plates at both ends, and this robust design can, in emergency cases,

withstand running dry.

The Aalborg XS-2V comes with its own steam space and is able to operate

independently from the oil-fired boiler/steam drum.

The sizes of the economizers depend on required steam capacity, amount

of exhaust gas, temperature, and working pressure.

Characteristics

• Vertical smoke tube exhaust gas economizer

• Own steam space or forced circulation

• Designed to utilize thermal energy in exhaust gases

• Quick start up

• Simple and automatic opeation

• Easy maintenance

• Standardized components

• All-welded contructions

• Integrated silencer as an option

• Compact and easy to install

Design data

• Steam capacity: 0.5 - 5 t/h

• Heat capacity: 0.3 - 4 MW

• Design pressure:10 bar(g)