Cooling Systems Flashcards
Name of the machinery that warships use that generates heat during operation
White Metal Bearings
What is white metal used for?
Sacrificial component
Used to save more expensive components
What temperature do White metal rings melt at?
115°C
Example of what White metal protects
The shaft
White metal is an alloy called…..
Babbit
Babbitt is made up of what 4 materials
Tin
Antimony
Copper
Cadmium
Name the 3 failures caused by continuous rise in temperature
Siezing
Wiping it’s Bearings
Catching Fire
4 types of machinery included in the main Propulsion circulation system
- Controllable Pitch Propeller
- Main forced lube cooling
- Plummer Block emergency cooling
- Gas Turbine
In an emergency, _____ water can be used from _____
Salt
HPSWM
Who’s permission fo you need to use salt water from the HPSWM in an emergency?
MEO
Name the 2 types of machinery cooled by the system
Air Conditioning Plant
Diesel Plant / Generators
Salt Water PUMPS take water from……
Common Rail
Common Rail has a _____ to use a ________ to allow ___________ on the other side _______
Valve
Strainer
Maintenance
Strainer
What happens if pressure drops in a cooling system?
Connection to HPSWM can be opened for emergency cooling
What cools Diesel Engines?
Fresh Water
What is fresh water used to cool diesel Generators cooled by?
Salt Water in Heat Exchanges (Closed Loop System)
What are the 2 reasons for Fresh Water Cooling?
Prevention of:
Salt Water Corrosion
Salt Water Contamination
What happens if the Fresh Water Pump Fails?
The system is x connected to HPSWM but is only done in emergencies and with permission from the MEO
Draw the Aux Circulation System
Draw the Aux Circulation System
Draw the Main Propulsion Circulation System
Draw the Main Propulsion Circulation System
