Aalborg-XW-A7-7bar

The Alfa Laval S.p.A. Aalborg-XW-A7-7bar is an entry in the Alfa Laval Aalborg XW exhaust-gas economizer family. The Aalborg XW is a water-tube, forced-circulation exhaust-gas economizer used to recover heat from diesel-engine exhaust gas and transfer it into a steam or hot-water circuit according to the installed plant arrangement. It is normally installed in the exhaust-gas path downstream of a main or auxiliary diesel engine and connected to a steam drum or auxiliary boiler system as required by the vessel design. The heating surface uses gilled water tubes, and the unit is designed for marine exhaust-gas conditions where vibration, pulsation and soot deposition must be considered. The A7 suffix identifies the variant recorded in this library, but the provided source does not define how that designation changes heating surface, dimensions or capacity. The additional 7bar suffix is preserved from the library entry; the exact approved design pressure, operating pressure and safety-valve settings must be confirmed from the equipment nameplate, class documentation and Alfa Laval data. Exact steam capacity, gas-side limits, circulation requirements and cleaning arrangements must be taken from the manufacturer documentation for the installed economizer.