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Frequently Asked Questions: |
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How Safe is Propane?
Propane is safe energy. In fact, the National Fire Protection Agency declares gas the safest way to heat your home: safest by a 4 to 1 margin.
Here are the odds a member of the general public will be involved in one of the following incidents:
Individual Risk to Specific Fatal Incidents
- Motor Vehicle Accident: 1 in 4,700
- Air Plane Crash (as a passenger): 1 in 140,000
- Struck by Lightning: 1 in 1,375,000
- Struck by Tornado: 1 in 2,450,000
- Dam Failure/Rupture: 1 in 6,300,000
- Air Plane Crash - (as a person on the ground): 1 in 37,000,000
- Propane Storage or Transportation Incident: 1 in 37,000,000
(*Source. U.S. Department of Energy, LPG Land Transportation and Storage Safety)
What is Propane?
Propane comes out of the same well as natural gas and crude oil. These products are called "hydrocarbons" because they contain hydrogen and carbon.
At a fractionation plant or refinery, the substances are "cleaned up", heated, cooled and separated. The chemical formula for propane is C3H8.
Propane is shipped throughout North America by pipelines, trucks and tank cars (rail).
The "Propane Advantage"
The great characteristic of propane is that it can exist as a liquid or a gas.
It is stored and transported as a liquid, but can be used as either a liquid or a gas. A small amount of propane liquid produces a lot of propane gas (called
vapour) and that reduces the size of storage containers required. It also enables propane to be stored and transported economically.
What does Propane Look Like?
Just to look at propane, it would be difficult to tell it from water. Like water, propane can exist as a liquid or a gas.
In its natural state, propane is a clear, odourless,
colourless, non-toxic liquid. As it changes from a liquid to a gas, it appears as bubbles.
Why does Propane Smell?
In its natural state, propane is odourless.
As a safety precaution, an odourant called Ethyl Mercaptan is added so any presence of propane may be easily detected. And while most of us are able to detect even the
slightest propane odour, some people are unable to.
How does Propane Expand?
Propane is 270 times more compact as a liquid than
as a gas. Conversely, propane will expand 270 times
if it changes from a liquid to a gas.
One litre of liquid propane will expand to 270 litres
of vapour.
Is there a Simple way to Detect Propane?
Most of us are able to use our eyes and nose to help
detect the presence of propane. For peace-of-mind
though, gas detectors are readily available at retail
stores.
Leaks are uncommon, but a simple way to check
piping, fittings or a tank for a leak is to mix dish soap
with water and spray it on the area you are
concerned about:
- If bubbles form, you may have a leak and
should take immediate action: Turn off the
propane supply to that appliance and call
Moore Propane immediately.
- If a leak is at fittings at a tank or cylinder:
Turn off the propane (using the valve at
the tank or cylinder), and call Moore
Propane immediately.
- If the tank or cylinder itself appears to be
leaking: Call Moore Propane immediately.
Important Note: This is not intended as a
comprehensive commentary on leak detection and
response. This general information is provided as an
overview for information purposes only. Contact Moore
Propane for further information or assistance.
What will Breathing Propane do to Me?
Propane is non-toxic. It is non-poisonous. But if you
were in a room filled with propane, it may displace
sufficient air that you may become light-headed, or
unconscious. Extended oxygen shortage may cause
asphyxiation.
Where do Propane Vapours Collect?
Propane is non-toxic. It is non-poisonous. But if you
were in a room filled with propane, it may displace
sufficient air that you may become light-headed, or
unconscious. Extended oxygen shortage may cause
asphyxiation.
How Does Temperature affect Pressure?
There is a direct relationship between temperature and pressure:
- If the outdoor temperature is 10 degrees, the
propane inside a cylinder or tank will also be
10 degrees.
- As the temperature outside the tank
increases, so does the temperature inside the
tank.
- As the temperature rises, so does the
pressure inside the tank.
Propane cylinders and tanks are never filled to
100% capacity. Sufficient space must be left in the
container for the liquid to expand. As the
temperature of liquid propane increases, it expands
and takes up more space inside the tank, forcing
the vapour into a smaller, tighter space.
The radiator on a vehicle is a similar example most
of us can relate to: on a hot day, or after an
extended drive on a hot day, the liquid in a rad
expands, forcing vapour into less space and the
pressure increases. In extreme cases, the expanding
liquid may expand, consume all available vapour
space and the rad will bubble over.
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