310303 Flashcards
(9 cards)
1
Q
3 types of positive displacement flow meters?
A
- rotary
- piston
- bellows
2
Q
Benefits of positive displacement flow meters?
A
- fluid can’t move through without moving the mechanism
- mechanism cant move without flow
3
Q
Rorating lobe PD flow meter good for ___ /hr of gas
A
Upto 3000 m^3
4
Q
A 4 chamber bellows meter aka ____
A
Diaphragm meter
5
Q
What are the upstream/ downstream requirements requirements for PD flowmeters?
A
None
6
Q
How can gas pockets damage a PD flow meter?
A
Over speeding - speeds up with less dense fluid , then sudden slow down with more dense
7
Q
Flow computers: how a gas is measured determines:
A
How a flow is calculated and what factors need to be determined
8
Q
When calculating flow, flow computers usually use ___ ___ and ___ as standards
A
- m^3/hr
- 101.325 kpa
- • kelvin
9
Q
This is for?
A
