Alfa Laval Integrated Cooling Systems

Transcript Alfa Laval Integrated Cooling Systems

Engine & Transport

Integrated Cooling Systems

Alfa Laval Integrated Cooling Systems, ALICS • Integrated marine cooling systems – Heat exchanger – Expansion or surge tank – De-aeration – Thermostats – Mounting function – Integrated piping © Alfa Laval Slide 2 www.alfalaval.com

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 www.alfalaval.com

Working Principle

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 Laval Slide 5 www.alfalaval.com

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 www.alfalaval.com

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 Laval Slide 7 www.alfalaval.com

Cooling Circuits

• • • • • 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 • •

Central Cooling System

Low temp seawater cooled heat exchanger • All other heat exchangers fresh water cooled, heatload captured in central, low temp cooler • Slide 8 Reduced seawater piping, corrosion, fouling and maintenance; eliminate many seawater coolers www.alfalaval.com

Central Cooling System Expansion Tank Engine and Fuel Coolers HEX Outlet Pipe Thermostat Bypass Power Steering & Gear Cooler Transfer Pipe to Charge Air Cooler Seawater Connections Slide 9 www.alfalaval.com

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 Laval Slide 10 www.alfalaval.com

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 www.alfalaval.com

Passive Deaeration

Slide 12

Active Deaeration

Jacket Water In Internal Piping Deaerators Seawater In Expansion Tank Seawater Out

Drain & System Fill Jacket Water Out

Slide 13 www.alfalaval.com

ALICS with thermostat

Thermostat Housing Thermostat Bypass Drain Expansion Tank

Engine Inlet

Seawater Out Engine Outlet Seawater In

Level Sensor

System Fill

www.alfalaval.com

Working together

• • • • • Technical resource Complete cooling systems Key account Project management Design specifications © Alfa Laval Slide 15 www.alfalaval.com

• Alfa Laval Integrated Cooling Systems, ALICS Varying scope of supply Simple ALICS Slide 17 Integrated ALICS www.alfalaval.com