Intro to Marine Engineering 2E Episode 12 ppsx

... small amounts to increase strength and resistance to fatigue. Tungsten added at between 12 and 18%, together with up to 5% chromium, produces high speed steel. .S32 Engineering ... may have to be taken during the various tours. Between tours of inspection the Duty Engineer will be on call and should be ready to investigate any alarms relayed to...

Ngày tải lên: 13/08/2014, 16:22

... and could lead to fires or explosions. The compressor motor is started and the machine run up to speed. The lubricating oil pressure should be observed to build up to the correct ... according to the type of seal. Replaceable wear rings are fitted to the impeller and the casing. The motor support bracket has two large apertures to provide access...

Ngày tải lên: 13/08/2014, 16:22

... pump (see Chapter 6). To achieve a seal between the rotors, oil is injected into the compressor: to prevent this being carried into the system, the oil separator is larger and ... or rolling. Evaporators Evaporators fall into two categories: refrigerant to air and refrigerant to secondary refrigerant types. The most simple of the refrigerant to air type...

Ngày tải lên: 13/08/2014, 16:22

... steering gear a vaned rotor is securely fastened onto the rudder stock (Figure 12. 9). The rotor is able to move in a housing which is solidly attached to the ship's structure. ... the system into balance and stopping all current flow. Supply Starter Motor Rudder rheostat Figure 12. 10 Ward-Leonard steering gear In the single motor system the motor...

Ngày tải lên: 13/08/2014, 16:22

... adjacent conductors. The two conductors are connected and a large current flow takes place. An earth fault occurs when a break in the insulation permits the conductor to touch an ... necessary to attract attention. It is necessary to give an alarm in order to concentrate resources and effort quickly onto the fire, even if the fire must be left...

Ngày tải lên: 13/08/2014, 16:22