Category: Alfa Laval

Superior Performance in any waters and challenging conditions PureBallast 3 Ultra offers unmatched biological disinfection performance in any type of water: fresh, brackish or marine. This includes liquid water at sub-zero temperatures. When operating in IMO-regulated areas with brackish or marine water, it maintains full flow where the UV transmittance is as low as 42%. In addition, PureBallast 3 Ultra is prepared for challenging water with high sediment levels. An upgraded filter design with a faster gear motor improves the backflushing efficiency, which significantly reduces the risk of filter clogging. Minimized power consumption An expanded range of UV reactor sizes ensures a close match between PureBallast 3 Ultra and the ballast pump capacity. For certain flows, this reduces power needs by up to 19% over previous systems. In all configurations, automatic power management minimizes the energy consumption. With this feature, PureBallast 3 Ultra runs at just 50% of its potential operating power in many situations. Yet it can ramp up to full power to maintain flow in challenging waters. By supporting higher flow rates, PureBallast 3 Ultra uses less energy than competing systems in relation to the ballast water volume.

Application PureBallast 3 Ultra is a modular, inline system for the biological disinfection of ballast water. Using PureBallast 3 technology that has been type approved by IMO and the U.S. Coast Guard (USCG), it removes organisms in accordance with set limits. PureBallast 3 Ultra can be used in all water types – fresh, brackish or marine. With its enhanced UV treatment, it also provides unmatched disinfection performance in low-clarity water. Moreover, its upgraded filter design provides greater protection against clogging. PureBallast 3 Ultra uses the same treatment technology as type-approved PureBallast 3 systems. Updated type approvals are in progress due to the new configurations. Benefits • Superior Performance in any waters and challenging conditions • Minimized power consumption • Easy installation with minimized footprint • Delivered Connectivity-ready • Designed and supported for the whole vessel lifetime

Easy installation with minimized footprint The major components of PureBallast 3 Ultra are installed inline, with the filter and UV reactor(s) incorporated into the ballast water piping. System layout is simplified by the smaller design of the upgraded filter, as well by the integration of the Cleaning-In-Place (CIP) unit and pressure monitoring device into the UV reactor module. These factors minimize system footprint, reduce piping work and maximize installation flexibility for the shipyard. Delivered Connectivity-ready To simplify connectivity, the PureBallast 3 Ultra scope of supply includes a built-in field gateway. The system is delivered ready to take advantage of Alfa Laval PureBallast Connect, a secure digital service portal that provides remote access to system information – anytime, anywhere. Available on a subscription basis, PureBallast Connect offers ways to maximize uptime, reduce workload and optimize fleet-wide. Designed and supported for the whole vessel lifetime PureBallast 3 Ultra is designed for enduring performance. The filter and UV reactor(s) are made with best-in-class materials and built to last the whole vessel lifetime. Features such as electric actuators on the main valves, which minimize the risk of pressure waves, secure system reliability. Our robust design principles enables us to provide a sustainable supply chain for the entire vessel lifetime. Adding to the peace of mind are Alfa Laval’s skills, resources and global service network. We provide shipyards with close local support, and we deliver parts and optimization throughout the system lifetime – wherever the vessel sails. Alfa Laval is a partner to rely on, always.

Introduction Alfa Laval PureBallast 3 Ultra is the latest ballast water management system built on proven PureBallast 3 technology. Offering increased performance in challenging waters and even easier installation, it can be configured for ballast water flows of 42–3000 m3/h, as well as Ex requirements. PureBallast 3 Ultra treats ballast water without chemicals, combining high-performance filtration with enhanced UV treatment. In the UV reactor(s), specially designed synthetic quartz lamp sleeves transmit an extended wavelength spectrum that provides more UV light. Together with the internal reactor design, this ensures optimal UV dosage with very low energy consumption. An expanded range of reactor sizes further reduces power needs in specific configurations.

Aalborg OM-TCi sets the new standard for fuel economy in marine boilers. The high efficiency means less fuel consumption, thereby lower operating cost for the ship owner and reduced emissions to our environment. Aalborg OM-TCi is a vertical oilfired boiler with a large furnace and an enhanced convection part. The standard boiler can be fired with various fuel oils. Aalborg OM-TCi is a vertical cylindrical steam boiler in the capacity range of 8.000 – 20.000 kg/h. It has been developed based on our well-proven technology and long experience. The best features of the well-known Aalborg CHB (formerly UNEX™ CHB) and Aalborg OM (formerly MISSION™ OM) boilers have been incorporated into the new boiler design. Furnace Aalborg OM-TCi consists of a large furnace with gas-tight membrane walls. A sufficient number of downcomers ensures safe natural circulation, and adequate furnace dimensioning guarantees good combustion, moderate loading and low material stresses. Convection part The cylindrical shell surrounds the smoke tubes. These smoke tubes have enhanced heat transfer features guaranteeing low exhaust gas temperature and thus high efficiency. Burner The standard boiler can be delivered with an Alfa Laval burner with fully automatic operation and control. The burner is designed for a high turndown ratio with complete combustion at low oxygen levels. Alfa Laval’s Aalborg KB rotary cup burner or Aalborg KBSA steam atomizing burners are offered based on application or customer preference. Control system The burner and boiler can be monitored and regulated by Alfa Laval’s own panels such as Aalborg Control, Aalborg Control Touch or the self-diagnostic Aalborg Steam Pilot safety andcontrol systems.

Control system The reliable and userfriendly microprocessor based Aalborg control system facilitates the operation and control of the Aalborg OC boiler. The control system provides fully automatic operation of the boiler plant and the pressure jet burner. The Aalborg control system includes burner load and sequence controls, water level and safety device, burner motor and fuel heater starter, and starter for fuel oil pumps. Silencer The composite boiler can be supplied with a compact silencer to suit any type of diesel engine. The silencer is based on well-proven technology. The optimum silencer dimensions are unique for each installation and calculated on the following basis: • Engine type • Exhaust gas amount and temperature at 100% engine load • Required level of silencing • Exhaust gas system dimensions Customer benefits for shipyards and owners Aalborg OC is designed to meet the ever increasing demands for rational and cost effective shipbuilding – in every phase of the project. Virtually no on-site assembling Aalborg OC can be delivered fully assembled.

Easy installation Installation is a matter of connecting up with premounted fittings and connections situated almost exclusively on the boiler top. Inlet and outlet boxes are included and the boiler foundation is prepared for welding to the deck. When opting for the composite boiler solution, only one boiler has to be installed and a circulation pump is superfluous. Project and engineering hours cut to a minimum All information regarding boiler plants is available immediately upon request. Due to parametric design methods, the optimal solution can be identified and quoted instantly. This includes layout drawings for design of the engine room. Aalborg OC is an advanced composite boiler in standardised design, offering thoroughly tested and optimised solutions. Due to the composite boiler functioning as both oil- and exhaust gasfired boiler, a high degree of redundancy is obviously built into the system. Easy inspection and maintenance Aalborg OC has adequate space for inspection and maintenance in the steam/water space.

Construction Aalborg OC is a vertical boiler with an exhaust gas section consisting of bare smoke tubes. The cylindrical shell surrounds the smoke tubes, the furnace, the steam space and the convective section, which consists of pin tube elements. The boiler pressure part is manufactured from mild steel able to withstand high temperatures. Stress concentrations in corners are minimised by the simple design of cylindrical shells with flat plates of equal thickness. Burner Aalborg OC is equipped with a Aalborg type pressure-jet burner or Aalborg types rotary cup burner. The burner is mounted and can be swung out for service and easy access to inspect the furnace. The burner housing is mounted on the boiler front, angled 15 degrees downwards against the furnace bottom. This allows for a long flame and offers better utilisation of the furnace and the result is a high performance combustion – even with. The flow of the combusting particles becomes optimal, and the result is a high performance combustion – even with the lowest grades of fuel. As an alternative, Aalborg OC can be equipped with a rotary cup burner.

Aalborg OC is a high performance, combined oil and exhaust gas-fired boiler, with a 750-5.000 kg/h capacity of the oil-fired section at 9 bar(g) design pressure. Aalborg OC is a vertical, cylindrical boiler with an exhaust gas section consisting of bare smoke tubes while the oil-fired section features pin tubes in the convection section. The boiler design has integrated pin tube elements. The pin tube elements support both the furnace and the boiler top plate. The design has been significantly optimised to achieve lower weight and improved strength. The result: longer lifetime of the pin tube by a factor of 8. Description Aalborg OC is a high quality composite boiler design offering the space-saving alternative of two boilers combined into one. Aalborg OC is a combined oil and exhaust gas-fired boiler with a capacity range of up to 5.000 kg/h steam from the oil-fired section and up to 3.000 kg/h from the exhaust gas section. It is a standardised, preassembled boiler plant that is fast and easy to install even if we design the boiler from case to case to get optimum design. Aalborg OC is designed according toAlfa Laval’s modular Aalborg boiler concept. Aalborg OC engages less deck area and has lower weight than older designs of composite boilers.

Design The Aalborg i-OC is a vertical and cylindrical boilerthat employs natural circulation of water and steam. Its pressure sections are manufactured from mild steel that is able to withstand high temperatures. The plant is designed according to Alfa Laval’s modular Aalborg boiler concept, with a main module that comprises two parts: an oil-fired section and an exhaust gas section that recovers heat from the main engine. One or two optional exhaust gas modules (Alfa Laval Aalborg Micro boilers) can be incorporated for auxiliary engine waste heat recovery. Handling the auxiliary exhaust gas with separate but connected modules ensures flexibility and a stress-free plant design. • Oil-fired section The oil-fired section of the main module comprises a furnace, a steam space and a convection section. The convection section, through which the flue gas flows, consists of helix tubes with a turbocleaning effect. • The modulating-type pressure-atomizing burner (Aalborg MF PA) is fully integrated with the convection part of the oil-fired section. The burner housing is mounted on the boiler front, angled 15° downwards towards the furnace bottom. It optimizes the flue gas flow distribution during combustion, which results in higher performance in the convection part and lower NOx emissions. • Main engine exhaust gas section The main engine exhaust gas section comprises smoke tubes and an internal bypass damper. The bypass consists of a plain tube welded to the lower and upper tube plates, with the automatic damper installed in the top. • Auxiliary engine exhaust gas boilers (optional) The exhaust gas boiler modules for auxiliary engine waste heat recovery comprise serrated and finned spiral tubes. Each module has its own exhaust gas bypass damper. These smaller modules are bolted directly to the main module, with no piping or other equipment. All boiler mountings are shared with and installed on the main module.