Compressed Air Systems Flashcards
1
Q
What is a gas compressor?
A
Mechanical device that increases the pressure of a gas by reducing its volume
2
Q
What is polytropic compression?
A
Real compression
3
Q
Why must compressed gas be dried?
A
Water can cause corrosion at pneumatic actuating drives
4
Q
List typical steps in operation of typical single-acting piston
A
Left dead point
Polytropic expansion
Suction of fresh gas until right dead
Polytropic compression
Exhaust - left dead point
5
Q
What is the advantage of worm compressors?
A
Many moving parts are eliminated because transport and compressing is done by a rotating displacement device
6
Q
What is a major concern about compressed air systems?
A
Leakage
