Engine Electroncis

Question 1

Process to start engine

Answer 1

1. Supply adequate & continuous volume of air to combustion chamber
2. Effective atomisation of fuel
3. Initial ignition

Question 2

Gas turbine engine start

Answer 2

Initial rotation of stalled engine compressor

• electric engineer starter
• starter generator
• air starter (in conjunction with turbine starter)
• gas engine starter (stalled engine compressor)

Question 3

Electric engine starter system

Answer 3

DC series motor

Question 4

Starter generator

Answer 4

• D.C. shunt generator
• Directly coupled to engine
• Driven by engine once engine started

Question 5

Electric engine start

Answer 5

• D.C. series motor
• high torque characteristics
• magnetic clutch connection

Question 6

Air starter

Answer 6

• comprises of air turbine
• used in conjunction with air start unit
• rotate the engine with sufficient air