Alfa Laval Aalborg CHB How it works

How it works

Standard configuration

The Aalborg CHB design consists of a large furnace welded to vertical, plain-type convection

tubes with spiral inserts. The low-alloyed plate material is easy to weld and is highly durable

to prevent cracking. Aalborg CHB boilers have fully water-cooled furnaces and can be

equipped with various burner types. The boiler comes complete with connections, foundation,

inspection hatches, manhole, hand-holes, insulation with sheeting as well as all valves and fittings.

Other standard features include:

• Modulating boiler water regulation

• Burner type according to preference and the type of fuel used

• Alfa Laval Gas Valve Units (GVU) and Methanol valve units (MVU) for alternative fuels

• Processor-based control system

• Control panel with touchscreen interface for all necessary operation, communication,

safety and alarm functions

• Integrated water-washing device

• Spare parts according to classification society demands

Technical data

Aalborg CHB boilers offer capacities ranging from 0.75 to 8 t/h. Standard design pressure

is between 10 and 18 bar(g), with thermal output up to 6 MW.  Several capacities and

dimensions available for the standard product range.

Options

In addition to the standard configuration features, the Aalborg CHB can be equipped with

a wide range of optional accessories according to a specific vessel’s needs. 

These include:

• Flue gas economizer

• For optimized performance and fuel savings, boiler can be equipped with external flue gas

economizer to further improve thermal efficiency.

• Electrical heating elements

• For emission-free port operation, electric heating elements can be integrated to provide

steam while the vessel is connected to shore power.

• Water Chemistry Solution

• Ensuring the long life cycle of steam generation system equipment and maintaining

operational reliability.

• Pressurized deaerator

A pressurized deaerator ensures optimal feedwater quality by thermally degassing dissolved

oxygen and other non-condensable gases. This significantly reduces corrosion risk and improves

the reliability and longevity of the boiler system.