Engine & Transport Integrated Cooling Systems. © Alfa LavalSlide 2 Alfa Laval Integrated Cooling Systems, ALICS Integrated marine cooling

Engine & Transport

Integrated Cooling Systems

www.alfalaval.com© Alfa Laval Slide 2

Alfa Laval Integrated Cooling Systems, ALICS

• Integrated marine cooling systems

– Heat exchanger

– Expansion or surge tank

– De-aeration

– Thermostats

– Mounting function

– Integrated piping


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


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


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


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


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


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


Reliable PerformanceCentral Cooling System • Limits components exposed

to seawater

• Smaller seawater pump

• Lower corrosion risk

• Freshwater cooled charge air coolers

• Lower system cost

• More reliable


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


Passive Deaeration

• Large horizontal tank area for improved de-aeration

• Integrated piping

• Coolant level sensor mount


Active Deaeration

Seawater In

Jacket Water In

Seawater OutJacket Water Out

DeaeratorsInternal Piping

Expansion Tank

Drain & System Fill


ALICS with thermostatThermostat

Housing

Thermostat Bypass

Engine Inlet

Engine Outlet Seawater

InSeawater

Out

Level Sensor

Expansion TankDrain

System Fill


Working together

• Technical resource

• Complete cooling systems

• Key account

• Project management

• Design specifications


Plate Range


Alfa Laval Integrated Cooling Systems, ALICS• Varying scope of supply

Loose plates

Simple ALICS

Integrated ALICS

Documents

Engine & Transport Integrated Cooling Systems. © Alfa LavalSlide 2 Alfa Laval Integrated Cooling Systems, ALICS Integrated marine cooling