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Engine & Transport Integrated Cooling Systems
© Alfa LavalSlide 2 Alfa Laval Integrated Cooling Systems, ALICS Integrated marine cooling systems –Heat exchanger –Expansion or surge tank –De-aeration –Thermostats –Mounting function –Integrated piping
© Alfa LavalSlide 3 Compact, efficient heat exchangers Cooling achieved by alternating hot and cold channels of liquids Channels formed by perimeter gaskets AL Flex pattern mixing optimizes heat transfer and pressure drop One-quarter the size and weight of shell & tube coolers
© Alfa LavalSlide 4 Working Principle
© Alfa LavalSlide 5 Advanced Plate Design Single-step pressing Patented distribution area design ensures better distribution No “dead spots” and reduced fouling Five-point guiding system prevents displacement
© Alfa LavalSlide 6 Gaskets that stay sealed Special materials, advanced designs One-piece moulded gaskets Protective gasket groove Separate fastening and sealing No interleakage Long gasket lifetimes Changed in the field Alfa Laval glue-free gaskets
© Alfa LavalSlide 7 Cooling with plate heat exchangers Multiple cooling duties Compact; low weight Low hold-up volume Less service space Easy to service Vibration and shock resistance No welds
© Alfa LavalSlide 8 Cooling Circuits Central Cooling System Low temp seawater cooled heat exchanger All other heat exchangers fresh- water cooled, heatload captured in central, low temp cooler Reduced seawater piping, corrosion, fouling and maintenance; eliminate many seawater coolers Seawater Cooling System Seawater passes through all heat exchangers in parallel or series All heat exchangers required to be resistant to seawater Extensive seawater piping Larger flow seawater pump
© Alfa LavalSlide 9 Central Cooling System Power Steering & Gear Cooler Thermostat Bypass Engine and Fuel Coolers Expansion Tank Seawater Connections Transfer Pipe to Charge Air Cooler HEX Outlet Pipe
© Alfa LavalSlide 10 Reliable Performance Central Cooling System Limits components exposed to seawater Smaller seawater pump Lower corrosion risk Freshwater cooled charge air coolers Lower system cost More reliable
© Alfa LavalSlide 11 Expansion Tank, multi function Permits expansion of coolant during engine operation Holds needed excess coolant De-aerates coolant –Passive design provides extra volume for air to separate and rise to top of tank –Active design uses cyclone to force air from the coolant Designed in integral piping, mounting, etc., providing cost, weight and space savings and an overall neater engine design
© Alfa LavalSlide 12 Passive Deaeration Large horizontal tank area for improved de-aeration Integrated piping Coolant level sensor mount
© Alfa LavalSlide 13 Active Deaeration Seawater In Jacket Water In Seawater Out Jacket Water Out DeaeratorsInternal Piping Expansion Tank Drain & System Fill
© Alfa LavalSlide 14 ALICS with thermostat Thermostat Housing Thermostat Bypass Engine Inlet Engine Outlet Seawater In Seawater Out Level Sensor Expansion Tank Drain System Fill
© Alfa LavalSlide 15 Working together Technical resource Complete cooling systems Key account Project management Design specifications
© Alfa LavalSlide 16 Plate Range
© Alfa LavalSlide 17 Alfa Laval Integrated Cooling Systems, ALICS Varying scope of supply Loose plates Simple ALICS Integrated ALICS
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