Technology and Operations
This forum is for discussing technological & operational matters pertaining to U-boats.
RE: Fuel Tanks
Posted by:
The Caption
()
Date: June 18, 2000 01:20PM
The fuel oil stowage facilities and piping arrangements on the IXC submarines contain numerous design differences and are in many details simpler then the installation on U.S. submarines.
The tankage layout is different in that four of the fuel tanks lie within the pressure hull ans that two of the variable ballast tanks are fitted for carrying fuel. No expansion tanks are provide; however, their function is accomplished by small salt water compartments in the lower sections of the normal fuel tanks. The function of the collecting tank and clean fuel oil tank are accomplished by two gravity feed tanks located in the engine room overhead.
Filling of fuel oil tanks and transfer of oil from stowage tanks to the gravity feed tank is accomplished through a manifold arrangement. Test pressure on the inboard piping is limited to 28.4 psi. Pumping arrangements are provide with portable connections to the lube oil transfer pump.
Fuel oil purification is dependent upon settling and filtration processes; no purifiers are installed. To detect water in the oil or dirty oil numerous sight glasses and settling guages on sampling lines are installed.
The filters that are used onboad are as follows:
Service Type Wire dia. X spacing
Fuel oil filling Wire mesh .018 X 080
Transfer Line Meter Wire mesh .008 X .018
Suction to gravity Tank Wire mesh .006 X .012
The tankage layout is different in that four of the fuel tanks lie within the pressure hull ans that two of the variable ballast tanks are fitted for carrying fuel. No expansion tanks are provide; however, their function is accomplished by small salt water compartments in the lower sections of the normal fuel tanks. The function of the collecting tank and clean fuel oil tank are accomplished by two gravity feed tanks located in the engine room overhead.
Filling of fuel oil tanks and transfer of oil from stowage tanks to the gravity feed tank is accomplished through a manifold arrangement. Test pressure on the inboard piping is limited to 28.4 psi. Pumping arrangements are provide with portable connections to the lube oil transfer pump.
Fuel oil purification is dependent upon settling and filtration processes; no purifiers are installed. To detect water in the oil or dirty oil numerous sight glasses and settling guages on sampling lines are installed.
The filters that are used onboad are as follows:
Service Type Wire dia. X spacing
Fuel oil filling Wire mesh .018 X 080
Transfer Line Meter Wire mesh .008 X .018
Suction to gravity Tank Wire mesh .006 X .012
Subject | Written By | Posted |
---|---|---|
Fuel Tanks | Robert Eno | 06/14/2000 08:13PM |
RE: Fuel Tanks | The Caption | 06/18/2000 01:20PM |