Alternative Fuel Vehicles – Part 2
Biodiesel Vehicles | Natural
Gas Vehicles | Propane
Vehicles
Many new vehicles have been developed such as
the electric vehicles that run on batteries, the hybrid vehicles
that run on both an electric motor and a gasoline engine and
the newest invention the fuel cell vehicle. In addition many
gasoline cars and trucks have ben converted so they can operate
on ethanol, natural gas or other alternative fuels.
Biodiesel Vehicles
Biodiesel is an alternative to petroleum based diesel fuel
that is made from renewable sources such a s new and used vegetable
oil and animal fats. It works exactly the same way as regular
diesel in compression based internal combustion engines. Similar
to methanol, Biodiesel can mixed up to 20% with conventional
diesel and used in any diesel equipment without requiring any
engine modifications and can provide the same power ratios as
conventional diesel fuel.
B100 is an acronym for 100% Biodiesel fuel. Most experts believe
that B100 can be used in any diesel engine manufactured after
1994 with little or no modification and completely safety. However
some manufacturers are concerned whether it will adversely affect
engine durability. B100 is not particularly well suited to very
low temperature conditions and the fuel requires special transportation
and storage.
Biodiesel can reduce the following hazardous emissions:
- unburned hydrocarbons
- carbon monoxide
- sulfates
- polycyclic aromatic hydrocarbons
- nitrated polycyclic aromatic hydrocarbons
- particulate matter
Who is Using Biodiesel Vehicles?
Transit bus fleets in many cities as well a several school
bus fleets use Biodiesel . Many farmers use it for their farm
equipment. Any fleet wanting to comply with the Energy Policy
Act of 1992 must use at least a 20% blend.
Availability - Biodiesel fuel is available
in most parts of the United States. fueling station locator
Safety – the flash point of Biodiesel
is higher than that of conventional diesel so it is safer. Since
it biodegradable, it is much more environmentally friendly than
any petroleum based product.
Cost – at the present time, Biodiesel
is approximately 20 cents a gallon more than regular diesel
fuel.
Biodiesel Benefits
B20 reduces air pollution and B100 practically eliminates harmful
pollution.
Domestically produced so it can reduce our dependence on foreign
oil
Can be made from soybeans and mustard seed or even used cooking
grease.
The viscosity is higher than conventional diesel so it provides
better lubrication for the engine.
Natural Gas
There are approximately 130,000 natural gas vehicles currently
in use in the United States and over 5 million worldwide. Natural
gas is primaly methane and is produced by gas wells and is a
byproduct of crude oil production. The primary reason it is
used in because it burns cleanly and is available commecrically
is end users in both compresed and liquid stats. Almost 20%
of the transit buses in the United Stats use natural gas as
their fuel. These vehicles perform comparably to their gasoline
and disel counterparts.
Availability – There seem to be fewer
models available than in the past. Please see Alternative Fuels
Vehicle Buyers Guide for more information. Fuel is available
in almost all cities and in many rural areas as well.
Safety - Natural gas vehicles are just as
safe as gasoline and diesel vehicles. They use specially designed
pressurized tanks designed to withstand impact, high temperatures,
and other hazards. Special training is requird to operte and
maintain natural gas vehicles. Most states require the mechanics
to be certified.
Cost - Usually natural gas vehicles are cheaper
to operate which is why transit bus fleets use them and an existing
vehicle can be retrofitted to run on natural gas for approximately
$4000.
Natural Gas Benefits
- Significantly reduce air pollution
- Cheaper to operate and require less maintenance
- 85% of natural gas is domestically produced.
Propane Vehicles
Propane is a by-product of natural gas processing and crude
oil refining. Most of the propane used in the United States
is domestically produced. Propane is also know as liquefied
petroleum gas (LPG). Propane has been used in vehicles since
the 1920s. There ar approximately 200,000 propane vehicles in
the United States and approximately 9 million around the world.
Some of the kinds of propane vehicles used include: cars, pickup
trucks, vans, medium and heavy-duty vehicles like transit buses,
shuttles, trolleys, delivery trucks, school buses and off-road
vehicles such as forklifts and loaders.
Availability – There are several manufactures
that offer a wide range of vehicles for purchase plus existing
vehicles can be converted as well. All states have public fueling
stations spread throughout both city and rural aras.
Safety- Since propane burs so cleanly, these
vehicles can safely be used indoors with out causing damage
to breathability which is why forklifts normally run on propane.
Cost – the operating cost is somewhere
between natural gas and gasoline/diesel fuel vehicles. It only
cost about $2500 to convet a light truck to propane. Like natural
gas vehicles, the maintenance costs are lower.
Propane Benefits
- Reduces air pollution by approximately 60%
- Cheaper to operate and require less maintenance.
- 100% of propane is domestically produced.
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