Facts
What Is Propane?
Propane is a hydrocarbon (C3H8) and is
sometimes referred to as liquefied petroleum gas, LP-gas or LPG. Propane
is produced from both natural gas processing and crude oil refining. It is
nontoxic, colorless and virtually odorless. As with natural gas, an
identifying odor is added so the gas can be readily detected.
Propane Is a Safe Fuel
The propane
industry has developed numerous methods to make the transport and use of
propane safe:
-
Propane
equipment and appliances are manufactured to rigorous safety
standards.
-
Propane
has a narrow range of flammability when compared with other petroleum
products. In order to ignite, the propane/air mix must contain from
2.2 to 9.6 percent propane vapor. If the mixture contains less than
2.2 percent gas, it is too lean to burn. If it contains more than 9.6
percent, it is too rich to burn.
-
Propane
won't ignite when combined with air unless the source of ignition
reaches at least 940 degrees Fahrenheit. In contrast, gasoline will
ignite when the source of ignition reaches only 430 to 500 degrees
Fahrenheit.
-
The odds
of a person dying from a direct result of a propane transportation or
storage accident involving loss of cargo are about the same as those
of getting struck by an airplane falling from the sky.
-
If liquid
propane leaks, it vaporizes and dissipates into the air.
-
Because it
is released from a pressured container as a vapor, propane can't be
ingested like gasoline or alcohol fuels.
-
Because
propane is virtually odorless and colorless in its natural state, a
commercial odorant is added so propane can be detected if it leaks
from its container.
Safety Starts with Education
The propane industry is also engaged in
ongoing efforts to increase safety in the handling, use and maintenance of
propane and propane equipment:
-
NPGA
offers an award-winning preventive maintenance program called GAS
Check® (Gas Appliance System Check). Trained technicians inspect
entire propane systems and appliances to ensure they are running
safely and efficiently, so consumers can save money and enjoy a
healthy environment. The program also educates homeowners on the
proper maintenance of propane appliances and how to safely handle
propane.
-
The Certified
Employee Training Program (CETP) is a nationally recognized
training program for people involved in the handling of propane,
equipment and appliances. The CETP is being used extensively
throughout the country and is continually updated and expanded.
-
Each year,
thousands of industry employees and firefighters attend service and
safety schools sponsored by the industry. The sessions provide
important training in how to quickly control and safely handle a
propane emergency.
-
NPGA, with
funding from the Propane Education & Research Council, has
developed a new comprehensive training program for America's public
safety agencies and propane retailers. The educational package
includes a 220-page textbook, Propane
Emergencies, which has been sent free to every fire department in
the country. The objectives of the emergency response program are to
increase the level of responder safety, improve efficiency to mitigate
emergencies and to encourage propane marketers and local emergency
responders to develop working relations before an accident occurs.
In addition to the textbook and training materials, there is a website
(www.propanesafety.com)
dedicated to the program that is continually updated, with interactive
scenarios utilizing real world emergency situations.
Firefighters can also get information by calling a toll free number
(800/968-9484).
Propane Is an Environmentally Friendly
Fuel
-
Propane is
an approved, alternative clean fuel listed in the 1990 Clean Air Act
as well as the National Energy Policy Act of 1992.
-
Propane is
one of the lightest, simplest hydrocarbons in existence, and, as a
result, is one of the cleanest burning of all alternative fuels. New
propane-fueled vehicles can meet the very tough Ultra-Low Emission
Vehicle (ULEV) standards, and one model even meets the Super Ultra-Low
Emission Vehicle (SULEV) standards.
-
Burning
coal to generate electricity releases carbon dioxide and other
pollutants into the atmosphere. Per pound of fuel burned, coal emits
more than twice the amount of carbon dioxide as does propane. By using
propane gas instead of electricity, consumers can cut emissions and
help preserve the environment.
-
Propane
gas is nontoxic, so it's not harmful to soil and water. Because
propane does not endanger the environment, the placement of propane
tanks either above or below ground is not regulated by the
Environmental Protection Agency (EPA).
-
According
to the EPA, much of the sulfur dioxide in the atmosphere, which
produces acid rain, is attributable to coal-fired,
electricity-generating facilities. In contrast, neither the process by
which propane is produced nor the combustion of propane gas produces
significant acid rain contaminants.
Propane Is a Good Value
-
According
to the U.S. Department of Energy, it could cost consumers twice as
much to operate their range, water heater, dryer or furnace with
electricity than with propane gas.
-
Overall
propane costs for fleet vehicles typically range from 5 percent to 30
percent less than conventional or reformulated gasoline. Many states
offer fuel tax incentives to encourage the use of clean fuels, thus
further reducing operating costs.
Propane Is a Versatile Fuel
-
Propane is
used by millions of people in many different environments-homes,
industry, farming and more.
-
More than
14 million families use propane to fuel their furnaces, water heaters,
air conditioners, outdoor grills, fire places, dryers and range tops.
-
Because
propane produces minimal emissions, it is safe to use indoors. As a
result, nearly 500,000 forklift trucks are powered by propane.
Millions more choose this clean-burning alternative for bus, taxi,
delivery and other fleets to minimize air pollution in metropolitan
areas.
-
Propane is
used on 660,000 farms for irrigation pumps, grain dryers, standby
generators and other farm equipment. It is an essential fuel for crop
drying, flame cultivation, fruit ripening, space and water heating and
food refrigeration.
-
Propane is
easy to transport and can be used in areas beyond the natural gas
mains. Because it is 270 times more compact as a liquid than as a gas,
it is economical to store and transport as a liquid.
Propane
& Your Home
When used as a home energy source,
propane gas fuels a variety of systems and products. It offers homeowners
reliability, cleanliness, improved performance and, on average, costs half
as much per BTU as electricity.
Warm and Cozy
Approximately 8.1 million households use propane gas to fuel their
home-heating systems.
Furnaces
-
A propane
furnace consistently supplies air at 120 degrees Fahrenheit. Electric
heat pumps dispense 95-degree air, which is less than body temperature
(98.6 degrees), so the air feels cool, not warm.
-
Propane
gas furnaces last an average of 20 years, while electric heat pumps
last an average of 12 years. The cost of repairing propane gas
furnaces is also lower than the cost of repairing electric heaters.
Space Heaters
-
Vent-free
propane-fueled space heaters are 99.9 percent efficient and include
oxygen depletion sensors that automatically turn units off if oxygen
levels drop below specified levels. They can also include thermostats
and heat distribution blowers.
-
Propane-fueled
space heaters produce fewer air pollutants and greenhouse gas
emissions than those fueled by fuel oil and electricity. In fact, the
energy used to power electric heaters produces emissions two to four
times higher than the energy produced to power propane heaters.
Not Too Hot, Not Too Cold, Just Right
-
Propane
gas water heaters cost approximately $10 less per month to operate
than comparable electric units. On average, propane water heaters are
42 percent less expensive than electric heaters.
-
Over an
average life span, propane gas water heaters can save homeowners
nearly $2,000 more than an electric unit.
-
Propane
gas water heaters heat more than twice as much water in an hour as a
comparable electric model.
Relax by the Fireplace
-
Sales of
gas-burning fireplace units are increasing. In fact, some propane
marketers report that nearly one-third of their new customers are
coming to them specifically for propane hearth products.
-
Propane
gas fireplace systems cost between 30 and 60 percent less per hour of
operation than wood burning fireplaces.
-
Propane
gas fireplaces emit 40 times fewer emissions than wood-burning units
and cost less to operate.
-
Propane
gas fireplaces can be turned off easily with a switch, eliminating
concern about remaining embers.
Now We're Cookin'
-
Propane-fueled
cook tops offer instant heat and absolute temperature control.
-
Ninety-seven
percent of professional chefs prefer cooking with gas.
-
Unlike
electricity-powered appliances, propane appliances are not affected by
power outages. Homeowners can continue to enjoy cooking meals in warm
homes.
Tumblin' Dry
- Propane-fueled dryers can complete
drying tasks in approximately three-quarters of the time it takes an
electric unit. Some models save up to 65 percent in costs over
electric dryers.
Safety
Tips
General Tips
To readily recognize a leak, know what
propane smells like. Propane retailers have pamphlets available with a
scratch-and-sniff spot so that your entire family can recognize the smell.
Propane leak detectors, similar to carbon monoxide detectors, are
available. See your propane supplier to obtain one.
If you smell a leak, immediately evacuate
everyone from the building and call your local propane supplier or the
fire department from your neighbor's phone. DO NOT remain in the building,
use the telephone or light switches or try to determine the source of the
leak by yourself.
Be aware of where gas service lines are
located, especially when working in your yard.
Water can damage the internal safety
mechanism in the gas controls of an appliance. If you suspect that your
appliance gas controls may have gotten wet (because of flooding, for
example), have a trained technician replace them immediately.
Heating Appliances
All furnaces can collect lint and dirt
and should be cleaned regularly. Contact your local propane supplier for
information on proper cleaning, and follow the manufacturer's
instructions.
Water Heaters
Drain your tank periodically (until water
runs clean - usually 2 to 3 gallons) to get rid of sediment buildup on the
bottom of the tank.
Ranges
Have your unit serviced if the burner
flame is not blue. The blue flame indicates complete combustion. A
yellow flame means air inlets are clogged or burners need adjustment.
Contact your propane supplier's service department immediately. Do not
cover the oven bottom with foil - it can restrict air circulation.
Never use gas ranges for home heating.
Statistics
& Characteristics
| Retail
propane companies, U. S.: |
8,000 |
| Retail
propane outlets, U. S.: |
13,500 |
| Propane
customers, U. S: |
14,300,000
Residential |
| |
1,040,000
Commercial |
| |
240,000
Industrial |
| |
310,000
Fork-lift |
| |
81,000
Fleet motor fuel |
| |
660,000
Agricultural |
| |
110,000
Standby |
| Propane-fueled
vehicles (cars, trucks, buses), U. S: |
300,000 |
| U. S.
households using propane as the main heating fuel: |
4.5
million |
| Transportation
infrastructure: |
70,000
miles of pipelines |
| |
16,000
railroad tank cars |
| |
5,000
highway bulk transport trucks |
| |
36,5000 'bobtail'
delivery trucks |
|
|
7,000
cylinder delivery vehicles
|
|
Characteristics
of Propane
|
| Chemical
formula |
C3H8 |
| Specific
gravity, liquid |
0.509 |
| Specific
gravity, vapor |
1.52 |
| Weight per
gallon |
4.24 pounds |
| Ignition
temperature |
920 -
1,120 degrees Fahrenheit |
| Maximum flame
temperature |
3,595 degrees
Fahrenheit |
| Heat
value per cubic foot of vapor |
2,516
Btu |
| Heat value per
pound of liquid |
21,591 Btu |
| Heat
value per gallon of liquid |
91,547
Btu |
|
|
All information
courtesy of National Propane Gas Association

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