The Alfa Laval Aalborg XW-TG is a water tube, forced circulation exhaust gas economizer designed to recover thermal energy from large diesel engine exhaust gases. Building on the proven Aalborg XW design, the XW-TG generates superheated steam for power generation via a steam turbine-driven generator (turbo generator). It is custom designed to meet individual steam capacity and pressure requirements, supporting single or dual pressure configurations to optimize power output and efficiency.

The standard Aalborg XW design has been enhanced to more efficiently utilize the wasted energy after large diesel engines with saved fuel consumption and reduced CO2 emissions as a result.

The Aalborg XW-TG is a water tube, forced circulation exhaust gas economizer designed to utilize thermal energy in diesel engine exhaust gas. The standard Aalborg XW design has been enhanced to more efficiently utilize the wasted energy after large diesel engines with saved fuel consumption and reduced CO2 emissions as a result.

Aalborg XW-TG generates superheated steam for power generation by means of a steam turbine driven generator (turbo generator).

The Aalborg XW-TG is based on and has the same characteristics as our well-known Aalborg XW which is a water tube, forced circulation exhaust gas economizer with double gilled tubes specially designed for heat recovery from diesel engine exhaust gas.

When applied for large heat recovery rates, the heating surfaces are required to be much increased in size and it is increasingly more important to focus on operation reliability to provide full benefit of the relatively high investment.

Features and benefits

  • Forced circulation exhaust gas boiler/economizer
  • Water tube boiler with gilled tubes for exhaust gas heat recovery
  • Robust, well-proven construction, able to withstand vibrations and exhaust gas pulsation
  • Heating surface composition which ensures the required output from the most compact unit
  • Efficient, well-proven cleaning system with steam or air soot blowers
  • Super heater and preheater as an option

Design data

  • Steam capacity: 15 – 34.0 t/h
  • Heat capacity: 0.1 – 21 MW
  • Steam pressure: 18 – 24 bar(g)