Fuel Price debate: Anwar Ibrahin VS Shabery Cheek Pt. 5
By admin | November 13, 2008
Fuel Price debate: Anwar Ibrahin VS Shabery Cheek Pt. 5
Topics: Diesel Vs Gasoline | 23 Comments »
Fuel Price debate: Anwar Ibrahin VS Shabery Cheek Pt. 6
By admin | November 10, 2008
Fuel Price debate: Anwar Ibrahin VS Shabery Cheek Pt. 6
Topics: Diesel Vs Gasoline | 25 Comments »
Why You Should Choose Diesel
By admin | November 7, 2008
Why You Should Choose Diesel
The major distinction between diesel and gas lies in
the type of ignition. While gas engines operate on
spark ignition, diesel engines employ compression
ignition for igniting the fuel. With compression, the
air is drawn into the engine and subjected to high
compression that heats it up. The result is a very
high temperature in the engine, much high than that
of gas engines.
In diesel engines, air and fuel are both infused into
the engine at different stages, as opposed to gas
where a mixture of air and gas are introduced. The
fuel is injected into the diesel using an injector
where in a gas engine, a carburetor is used for this
very purpose.
With gas engines, fuel and air are sent into the
engine at the same time, then compressed. The air
and fuel mixture will limit fuel compression, and
thereby hence the overall efficiency. Diesel engines
only compress air, and the resulting ratio can be
much higher.
Advantages
Diesel engines are much more efficient and
preferable as compared to gas engines due to the
following reasons:
1. Diesel engines have overcome the several
disadvantages of earlier models that featured higher
noise and maintenance costs. Now, they are quiet
and require less regular maintenance when compared
with gas engines of a similar size.
2. Diesel engines are more rugged and reliable.
3. There is no sparking at all as the fuel
ignites. The absence of spark plubs or spark
wires also helps to lower maintenance cost.
4. The fuel cost produced is 30 – 50 percent
lower than gas engine fuel prices.
5. Gas burns hotter than diesel, and
therefore they have a shorter life span when they
are compared with diesel engines.
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How to Drive & Operate a Tractor : Diesel Tractors vs. Gasoline Tractors
By admin | November 7, 2008
Diesel tractors have the advantage of much more power and lower maintenance than tractors with gasoline engines. Find out why diesel tractors are superior to tractors with gasoline engines in this free video.
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Why People Use Diesel
By admin | November 5, 2008
Why People Use Diesel
With diesel engines, the compression ratio is higher
and there is more power. From a technical point, the
compression ratio of an engine is the comparison of the
total volume of the cylinder at the bottom of the
piston’s stroke divided by the volume of the cylinder
remaining at the top of the stroke.
Gasoline ratios
Serious damage to gas engines can occur if you attempt
to run a high compression ratio with a low octane type
of fuel. Detonation is the ignition of the fuel due
to the high temperature caused by a high compression
ratio that is developed by design. The fuel is
ignited prior to the spark of the plugs that result
in a rapid, yet uncontrolled burning.
Diesel ratios
Keep in mind, the diesel is a heat engine, using heat
developed from the compression of air. High compression
ratios are possible since the air is compressed. The
hot compressed air is sufficient to ignite the diesel
fuel when it’s finally injected near the top of the
compression stroke.
Diesel engines
Fuel and air in the design of diesel engines are not
premixed outside of the cylinder. Air is taken into
the cylinder through the intake valve and then
compressed to make heat. The diesel fuel is injected
near the top of the piston’s stroke in an amount or
ratio that corresponds to the load on the engine.
Heavy duty
The higher compression ratio causes engineers to
design, and test the block, heads, head bolts,
crackshaft, connecting rods, rod bolts, pistons,
piston pins, etc., with a greater range of structural
capacity. To put it in other terms, diesels are
heavier than gasoline engines.
Gasoline
Deciding on gas and diesel can be tough, although
there are several reasons why you should use diesel.
1. Diesel engines produce twice the power
per gallon of fuel than gasoline.
2. A gallon of diesel is normally cheaper
than a gallon of gas.
3. Diesel fuel doesn’t blow up. The fact
is, its hard to get diesel to burn at all.
4. Diesel engines will last four times
longer than gasoline engines.
5. Diesel fuel that is untreated will last
longer in storage than untreated gasoline.
6. Treated diesel fuel will last longer in
storage than treated gasoline.
7. Diesel fuel treatment will cost less
than gas treatment.
8. Spoiled diesel can be reconditioned to
refinery specifications, as spoiled gas can’t.
9. Unmodified diesel engines can be ran on
vegetable oil.
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Fuel Price debate: Anwar Ibrahin VS Shabery Cheek Pt. 3
By admin | November 4, 2008
Fuel Price debate: Anwar Ibrahin VS Shabery Cheek Pt. 3
Topics: Diesel Vs Gasoline | 25 Comments »
Most Fuel Efficient Vehicles
By admin | November 3, 2008
Most Fuel Efficient Vehicles
Most efficient overall – Honda Insight hybrid
With 60 mpg city and 66 mpg highway, the Honda hybrid
has top honors as most fuel efficient in the United
States. With a 1.0 gas engine mated to an electric
motor, the insight was designed to make the most
of the power by using low resistance tires. The
bad things about the Insight include a cramped
interior, seating for two, and a very odd styling.
Fuel efficient mid size car – Toyota Prius hybrid
(60 mpg city and 51 mpg highway)
The Prius, unlike the Honda Insight, is capable of
carrying 5 people plus their gear. The Prius will
generate a total of 110 HP from its gasoline engine
and electric motor. The sleek shape to the Prius
has a low co-efficient drag although Toyota has
managed to do this with a larger, yet more driver
friendly vehicle than the Insight of Toyota.
Most efficient compact car – Honda Civic hybrid
(49 mpg city and 51 mpg highway)
With a reputation of being the cheapest hybrid in
North America, the Civic hybrid takes the great
design of the regular Civic and makes it a lot more
efficient. With an output of 110 HP, the Civic
hybrid is very competitive for the class.
Most efficient sub compact car – Volkswagon diesel
(37 mpg city and 44 mpg highway)
The Volkswagon Beetle diesel is ahead of even the
sub compact hybrids. Making 100 HP, the Beetle
diesel may not sound that powerful, although the
177 lb-foot of torque will put shame on every
other vehicle in the same class.
Most efficient station wagon – Pontiac and Toyota
(30 mpg city and 36 mpg highway)
The Pontiac Vibe and Toyota Matrix are both the
result of a joint venture of Toyota and General
Motors. Both vehicles come equipped with Toyota
engines, although a lot of the design and
engineering came from General Motors. Both the
Matrix and the Vibe are versatile with active
lifestyles. With a fuel efficient 1.8L 4 cylinder
that produces 126 HP, the Matrix and the Vibe
aren’t going to win a street race although they
make up for it with smoothness, efficiency, and
refinement.
Most efficient large car – Hyundai Sonata
(24 mpg city and 34 mpg highway)
The Sonata is a major surprise, beating out very
stiff competition. The 2.4L 4 cylinder engine is
very smooth, responsive, and powerful. The
suspension however, is soft, and geared more
towards comfort than handling. This isn’t a BMW,
although the build quality is great, clearly
demonstrating that Hyundai is no longer a second
rate manufacturer.
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Industrial Diesel Engines
By admin | November 2, 2008
Industrial Diesel Engines
Industrial diesel engines are any engines that are used
for industrial purposes that run on diesel. Industrial
diesel engines are used to power a major portion of
industrial machinery, from motorbikes to bulldozers,
generators, and even forklifts and trucks. They range
in size from a few pounds to a few tons, with a various
amount of power.
The use of diesel engines is mandated by several large
organizations. All NATO machinery for example, runs on
either diesel or aviation grade kerosene. At the
current level of technology, fossil fuels, and especially
diesel are the most economical and convenient means
of supplying power to a variety of equipment and
even backup generators.
All industrial diesel engines can be either air cooled
or water cooled. The smallest engines for residential
purposes will typically provide about 10kW and cost
a few thousand USD. These smaller scale engines power
much of the mobile machinery we see around us on a
daily basis, such as trucks, farm equipment, small
boats, stationary process machinery, earth movers,
and so on.
The medium scale industrial diesel engines can provide
levels between a few hundred kW and a few thousand
kW and are sold for prices in usually the thousands
of dollars. These types are used in larger machinery
such as larger mining equipment, oil rigs, trains,
large boats, military equipment, and much more.
The largest of industrial diesel engines provide 10,000
to 80,000 kW, sold in the millions of dollars, and
are used for ultra heavy equipment, electric power
generation, and the largest of ships. Large industrial
engines can be up to 49 feet side and run on low
grade diesels. In places such as China, where there
is a high demand for de-centralized power sources,
these types of engines are often utilized.
Industral engines are classified in terms of their
speed, or RPM (Rotations Per Minute). High RPM
engines are normally used for the lighter, more common
applications, such as trucks and other types of land
equipment.
Medium RPM engines are generally used for power
generation. Low RPM ranges, and high torque engines
are used for the biggest type of equipment, such as
marine equipment and applications.
For the most part, industrial diesel engines can
vary in terms of size and performance. Chances are,
you’ve either seen or used industrial equipment at
some point in time. Although they cost a lot of
money, they are the way to go with bigger equipment
for getting the job done right the first time.
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Oil Pressure and nationally subsidized gasoline and diesel
By admin | November 1, 2008
CNBC reports on what is causing what can be done as we face high oil and gasoline prices in May 2008. Michelle Caruso-Cabrera comments on nationally subsidized fuel prices and Dan Dicker on speculators.
Topics: Diesel Vs Gasoline | No Comments »
Hydrogen Boosted Gas Engines
By admin | October 31, 2008
Hydrogen Boosted Gas Engines
With the ever increasing cost of gasoline prices,
auto makers are having to work overtime to cost
effictively improve the fuel economy, while still
meeting the strict emission requirements of today
with gasoline engines.
One ideal and promising way to boost the fuel
economy of gas engines is to add hydrogen to the
fuel/air mixture in the engine. Since hydrogen
isn’t available at the local gas station, selling
a hydrogen boosted gas engine wasn’t on the list
of engines – until now.
Lack of emission
A major cost and environmental advantage to hydrogen
boosted gas engines are low amounts of NOx emission
gas, which will completely eliminate the need for
external NOx emissions control. Currently, NOx
emissions control is a major cost problem for diesel
engines which use expensive traps to meet the
emission standards. Diesel engines particulate
emissions that must be collected by a filter that
should be changed periodically.
Hydrogen boosted engines on the other hand require
neither NOx or particulate control and require only
a low cost oxidation catalyst to control very small
amounts of exhaust which is formed mostly during
the engine starting up and warming up. Additional
cuts in emissions control requirements stem from
the engine’s ability to use only the clean hydrogen
enriched charge during the cold start phase when
90% of emissions are generated in the emission test.
Cost
The hydrogen boost system is effectively a bolt
on technology that can be added to an existing
vehicle’s engine compartment. According to those
developing the system, the cost of the system is
less than half of the added cost for diesel.
The future
Prototype hydrogen boosted engines are now be
installed in test SUV vehicles that have
sufficient space for the reformer and it’s related
system. The start of long term road testing
for performance, reliability, and durability
information is planned for later on in the year
before the system goes further into development.
Four cylinder gasoline engines will likely be the
prime candidates for the technology as high gas
prices continue to generate competition among the
higher fuel economy models that seek MPG
leadership.
With gas prices getting higher and higher, hydrogen
boosted gas engines offer you the chance to get
more miles per gallon and not have to worry about
burning up all of your fuel. Instead of having to
go out and buy a diesel to conserve fuel, hydrogen
boosted units will help you preserve gas.
Even though they aren’t available to buy right now,
they will be very soon. Many manufacturers are
looking into them, as they offer gasoline engines
something like never before. If you own a gas
powered vehicle and have thought of giving it up
to go diesel, you might want to think again – as
hydrogen boost units may change the world of gas
engines forever.
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