Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
24 Cards in this Set
- Front
- Back
|
Chemical formula for natural gas |
CH4 |
|
|
Chemical formula for propane |
C3H8 |
|
|
Chemical formula for butane |
C4H10 |
|
|
Specific gravity ( gas relative to air ) for natural gas |
0.6 |
|
|
Specific gravity ( gas relative to air ) for propane |
1.5 |
|
|
Specific gravity ( gas relative to air ) for butane |
2.006 |
|
|
Calorific value ( btu / ft.3 ) for natural gas |
1000 |
|
|
Calorific value ( btu / ft.3 ) for propane |
2500 |
|
|
Expansion ratio ( how many ft.3 of gas are in a ft.3 of liquid ) |
270 |
|
|
Liquefaction ratio ( how many ft.3 of gas are in a gallon of liquid ) for propane |
43.6 |
|
|
Calorific value ( btu/imp. Gal ) for propane |
109560 |
|
|
Specific gravity ( liquid relative to H2O ) for propane |
0.51 |
|
|
Boiling point of liquid ( °F ) for natural gas and propane |
- 258 and - 44 |
|
|
Range of flammability ( % of gas in air ) for natural gas |
5 - 15 % |
|
|
Range of flammability ( % of gas in air ) for propane |
2.3 - 9.5 % |
|
|
Approximate flame speed ( inches / sec. ) for natural gas |
26 |
|
|
Approximate flame speed ( inches / sec. ) for propane |
32 |
|
|
Approximate ignition temp. ( °F ) for natural gas |
1200 |
|
|
Approximate ignition temp. ( °F ) for propane |
950 |
|
|
Max. Flame temp. ( °F ) for natural gas |
3350 |
|
|
Max. Flame temp. ( °F ) for propane |
3500 |
|
|
Combustion air req. ( ft.3 air / ft.3 gas ) for natural gas and propane |
10 and 24 |
|
|
Gas supply pressure ( inches w.c ) for natural gas and propane |
7 and 11 |
|
|
Gas supply pressure ( oz / in2 ) for natural gas and propane |
4 and 6.35 |
