Why are electric motors more efficient than combustion engines?

Cars & Vehicles
Chemistry
Combustion Engines
Elements and Compounds
Periodic Table

electric motors lose very little power from friction, they also make more torque at a lower rpm than gas engines, they also require little maintenance and pollute less.

Previous questionWhat was the fastest car in 2000?
Next questionEngine stalls after 30 plus miles of highway driving in the heat?

Related question

Are turbines more efficient than gasoline engines?

By a generous estimate, they can be about 30% more efficient than a gasoline engine.I assume you mean "are turbines more efficient than piston engines".Depends on the running conditions. At full load, steady running conditions, turbines are better than piston Engines. At varying loads, turbines o...

Read more

Why a Rotary Engine is More Efficient than Piston System?

It is more mechanically eff. because it runs like a 2 stroke vs. a normal 4 storke engine. A rotary engine is less efficient when it comes to emissions. That is why the olde 13B RX7 was discontinued.

Read more

Are electric vehicles more efficient?

EVs have several advantages over conventional vehicles: Energy efficient.EVs convert about 59%–62% of the electrical energy from the grid to power at the wheels.Conventional gasoline vehicles only convert about 17%–21% of the energy stored in gasoline to power at the wheels.

Read more

Why are 3 cylinder engines more efficient?

Optimized for Fuel Efficiency A 3 cylinder engine is much more fuel efficient compared to a 4 cylinder engine of the same size.This is because of two primary factors, reduced frictional losses and lighter weight.Even the crankshaft constructed to hold the pistons is lighter.

Read more

Why are cars usually more gas efficient than trucks?

Cars have a smaller engine than most trucks. Because of this fact, cars require less gasoline to power itself than a truck does. A truck, on the other hand, requires more fuel to power a larger vehicle.

Read more

Why combustion of gasoline occurs more rapidly in an internal combustion engine than in open container?

There is a complicated physics/chemistry answer for this question and a "mechanic" answer. I will give the mechanics answer. I am assuming that you are asking this question in regards to a specific amount or volume of gasoline, because the obvious answer otherwise would be that the fuel is being ...

Read more

List two reasons why small engines are more efficient than big ones?

they have small cylinder and they also fire at every second stroke.

Read more

Are bikes more fuel efficient than cars?

But riding on two wheels may not be any more environmentally responsible than riding on four.Turns out the average motorcycle is 10 times more polluting per mile than a passenger car, light truck or SUV.It seems counter-intuitive, because motorcycles are about twice as fuel-efficient as cars and ...

Read more

How efficient are internal combustion engines?

Most internal combustion engines are incredibly inefficient at turning fuel burned into usable energy.The efficiency by which they do so is measured in terms of "thermal efficiency", and most gasoline combustion engines average around 20 percent thermal efficiency.

Read more

Are steam engines more efficient?

Diesel engines are way better than steam engines when it comes to thermal efficiency.Diesel engines produce an efficiency of around 35%.whereas, piston driven steam engines produce around 6% of thermal efficiency.For example, a locomotive steam engine Consumes around 100 BTU of coal to produce 6 ...

Read more

Are larger engines more efficient?

As a larger engine is usually able to burn more fuel and produce more power than a smaller one, a car with a larger, more powerful engine is likely to be able to accelerate faster and tow heavier loads than a car with a smaller engine can manage.This rule of thumb is less accurate today than in t...

Read more

Why is the gas car more efficient then electric?

First, petroluem based products are relatively easy to utilize in various ways including gasoline powered automobiles. Current electric technology hasn't solved the distance problems with electric cars. About 90 miles or so per charge doesn't compare well with gas powered vehicles that can go 350...

Read more

Why are trains more efficient?

Freight trains are several times more energy-efficient than trucks, because 1) the rolling resistance of the steel wheels of trains is lower than that of truck tires on the road, and 2) trains encounter less proportional wind resistance than trucks since a train car is partly shielded from the he...

Read more

Why is fuel injection more efficient than a carburetor?

Fuel injection, because it can be more precisely controlled, results in more efficient use of fuel, reduced fuel consumption and fewer emissions, which is the main reason it began to replace the carburetor in the 1970s.Power and performance.

Read more

Why Are turboprops more efficient?

Because they aren't always more efficient.at lower speeds, turboprop engines are much more efficient.the also provide more power and bettwr fuel efficiency at lower speeds.

Read more

Are classic cars more fuel efficient than cars today?

I don't think so because the technology has improved by a lot since classic cars were popular. An example of this are hybrids that don't use gas and run on electricity.

Read more

Why efficiency of motor is less than generator?

In general, the efficiency of a generator will be greater than that of motor.Some of the reasons are, The generator windings are made of more thicker windings hence have lesser resistance and hence lower copper losses.but in generator there are no opposing voltages .

Read more

Are american hybrids more fuel efficient than non american hybrids?

If you are looking for more information on are american hybrids good fuel economy and environmentally friendly cars, the best place to look is on www.fueleconomy.gov/feg/hybridtech.shtml

Read more

Why wider tires are more efficient than narrower tires at normal speed?

Your question makes the assumption that the question is true. Wider tires are not more efficient than narrow tires at normal speed in all conditions. Wider tires do provide more traction and stopping power on dry or wet pavement as they have more tread contacting the road. But a wide tire that is...

Read more

Are car companies working towards making more efficient motors?

yes they are working on it. every company works on making more efficient motors in order to make their service better and more sustainable.Yes they are working on more efficient cars. They have come up with many hybrid vehicles in recent years.

Read more

Why wider tire are more efficient than narrower tire at normal speed?

that is a false question. less rubber on the road means less friction and this calls for better fuel economymaybe, efficient means high-performance, with a good grip and braking characteristics. Wider tires also mean better handling.

Read more

Why is a car engine an internal combustion engine rather than an external combustion engine?

Because it was found that ICEs deliver power more simply and weigh less than ECEs.

Read more

Why are new car engines more powerful than older?

It's because the new car engines are newer and aren't used like the old ones, so the new ones can work faster and more powerfully.

Read more

Why is cars engine are more powerful than bike?

Generally they are larger.

Read more

Is a liquid cooled internal combustion engine more effecient than an air cooled engine?

Not necessarily but usually

Read more

Why are hybrid vehicles more efficient?

Hybrid cars are known as hybrids because they use an electric motor to augment the performance of a small, efficient gasoline engine.But this isn't the only reason hybrids are more efficient than gas-powered cars.Some hybrids rely on a process known as regenerative braking to recharge their batte...

Read more

Why are streamlined cars more efficient?

Streamline For Automobile Efficiency.A streamlined object will cut through the air with less resistance, just like a sharp knife cuts through materials better than a dull one.Streamlining means less aerodynamic drag and therefore less fuel is needed to propel a car forward.

Read more

What is combustion efficiency in engines?

Most internal combustion engines are incredibly inefficient at turning fuel burned into usable energy.The efficiency by which they do so is measured in terms of "thermal efficiency", and most gasoline combustion engines average around 20 percent thermal efficiency.

Read more

Why do cars use internal combustion engines rather than external combustion engines?

The term "Internal combustion" means the burning, or combustion of the fuel/air is detonated in an enclosed cylinder under compression, driving piston down. If the combustion was external, there would simply be an explosion in the air that produces no power.

Read more

Overall efficiency in internal combustion engine?

Not very.only about 15% of the energy is used to drive your car on the road.62% of the energy is used up in the engine itself, converting the gas to energy.17% is used when the vehicle idles.5% is expended in the transmission2% is used for accessories.

Read more

How efficient is an internal combustion engine?

Gasoline (petrol) engines Modern gasoline engines have a maximum thermal efficiency of about 25% to 50% when used to power a car.At high speeds, efficiency in both types of engine is reduced by pumping and mechanical frictional losses, and the shorter period within which combustion has to take p...

Read more

On most cars is a 4-cylinder engine more fuel-efficient than a 6-cylinder?

A four-cylinder engine does not require as much fuel as a six-cylinder, which requires half again as much fuel every time the pistons fire. A six-cylinder is more powerful, too, and accordingly uses more fuel. Four-cylinders are more economical, and if they are properly maintained, are more effic...

Read more

Why are air tools better than electric?

Compared to electric tools, air-powered versions are lighter and smaller, but they pack the same (or often higher) amount of punch.As airflow from the compressor is adjustable, air tools can deliver more torque and RPM, enabling you to finish jobs faster and easier.

Read more

Do electric cars pollute more than diesel?

All vehicles produce substantial life cycle emissions, and calculating them is complex.However, EVs typically produce fewer life cycle emissions than conventional vehicles because most emissions are lower for electricity generation than burning gasoline or diesel.

Read more

What makes some cars more fuel efficient than others?

Being a hybrid or fully electric car makes a car quite efficient. Also a lot of factors determine how much fuel effienciency a car has. Such as weight, tire pressure and speed.

Read more

Why are buses more sustainable than cars?

By moving more people with fewer vehicles, public transportation can reduce greenhouse gas emissions.Heavy rail transit such as subways and metros produce on average 76% lower greenhouse gas emissions per passenger mile than an average single-occupancy vehicle (SOV).

Read more

Why is it more efficient for car engines to have more cylinders?

That's not always the case.For efficiency - to get the most useful energy out of every drop of fuel - there's an ideal size of the combustion chamber. Make it smaller, it tends to go a bit cold and combustion gets poorer, make it bigger it's harder to get all of the gases in and out.and combustio...

Read more

What is the Efficiency of a standard internal combustion engine?

the internal combustion engine works by converting chemical energy (fuel) into heat energy. the heat energy then expands the compressed air to drive the piston down. typically a third of this heat goes straight out of the exhaust, which is why the exhaust gets hot. another third of the heat is ab...

Read more

What is the most efficient internal combustion engine?

It is the most efficient and powerful internal combustion engine in the world with a thermal efficiency over 50%.” “Gas Turbines are among the most efficient internal combustion engines.The General Electric 7HA and 9HA turbine combined cycle electrical plants are rated at over 61% efficiency.”

Read more

How energy efficient is an internal combustion engine?

Most internal combustion engines are incredibly inefficient at turning fuel burned into usable energy.The efficiency by which they do so is measured in terms of "thermal efficiency", and most gasoline combustion engines average around 20 percent thermal efficiency.

Read more

What is the combustion efficiency in an automobile engine?

It varies somewhat depending on engine design, but a gasoline engine is approximately 30% efficient due to heat, mechanical loss, etc. Despite modern engines getting about 98-99% efficiency out of the gasoline.

Read more

Why is an internal combustion engine less efficient when it is cold?

The oil has less veocity therfore your engine must warm up the oil and the eninge at the same time. Also you probly have the heater on and that draws from your alternator and makes it work with puts strian on your motor

Read more

Is a bigger engine more fuel efficient?

As a larger engine is usually able to burn more fuel and produce more power than a smaller one, a car with a larger, more powerful engine is likely to be able to accelerate faster and tow heavier loads than a car with a smaller engine can manage.This rule of thumb is less accurate today than in t...

Read more

Which heat engine has more efficiency?

Carnot's heat engine has more efficiency then the other heat engine but it is assumption. Is is not real.RGUKT IIIT NUZVID: N091528

Read more

How much more efficient are all wheel drive cars than the regular average car?

One will notice the substantial advantage of all wheel drive vehicles in winter and icy weather conditions. The chances of skidding over a slippery surface is much greater for a regular car compared to an AWD car.

Read more

Are hybrids more fuel efficient?

By using both a conventional engine and electric motor, the best hybrids achieve significantly better fuel efficiency than their non-hybrid counterparts.They also pollute less and save drivers money through fuel savings.

Read more

Are larger wheels more efficient?

Large tires with a low rolling resistance will be more efficient than those with a high rolling resistance.And depending on your driving habits off-road tires may be more fuel efficient than all-season tires.

Read more

Why are motor vehicles better than bicycles?

As the motor vehicles are consuming less energy of our body and have great deal on machines which means machines play important role and we can resist more energy to save our day in work. Though it is taking our body to drive but still it does not use our energy and help to gain more power.

Read more

Why is manual transmission more fuel efficient?

The torque convertor was never 100% effective when the car was in motion, causing cars to lose more power and burn more fuel on the highway than cars with manual transmissions.So if you're looking to buy a used car and want to save on gas mileage, one with a manual transmission would probably be ...

Read more

Why is counter flow more efficient?

The exchanger is performing at its best when the outlet temperatures are equal.Counter flow heat exchangers are inherently more efficient than parallel flow heat exchangers because they create a more uniform temperature difference between the fluids, over the entire length of the fluid path.

Read more

Why is high speed transportation more efficient?

you get to your point faster and depending on how fast your going you could be saving gas and money

Read more

How are hybrid cars more efficient?

use less gas ,and run by battery but that electric cost somebody something huh ?to re-charge and that's going up all the time so it may not be a cheap car after all wait and see how much parts will cost or a mechanic to work on it

Read more

Are cars becoming more fuel efficient?

Despite Cars Becoming More Powerful, Fuel Economy Is Improving.Government regulations requiring improved fuel economy ratings has pushed automakers to develop new, more fuel-efficient four-cylinders.Many of them feature turbochargers or electric motors providing V6-like performance without sacrif...

Read more

Why are there not more electric vehicles on your road?

The first thing is energy density.Compared by weight and volume, a battery can't hold as much energy as gasoline or diesel. So an electric car will either have a lot less range, or be a lot heavier than a gas/diesel car.The next thing is recharging time.With a liquid fuel car you can fill the tan...

Read more

Does gasoline cost more than electricity for cars?

No, a full tank of gas is now 50 to 60 dollars, it only costs two or three dollars to charge an electric car.

Read more

Why does motor efficiency increase with load?

Friction is the main cause of inefficiency at low loads.Losses due to friction are essentially constant with respect to load so at low loads, the majority of your input power may be used to overcome friction.As the load increases, friction plays a smaller and smaller role in the overall efficiency.

Read more

Are European cars more fuel efficient?

Typically, it's accompanied by the mention of some supposedly 80-mpg car sold in Europe--while the best U.S.-market vehicles barely crest the 50-mpg mark.Year after year, European sales figures have shown a bias towards higher average fuel economy and lower fleet-wide CO2 emissions.

Read more

Why are petrol cars better than electric cars?

Because of this, the main way to reduce the fuel consumption of petrol powered cars is to buy a small one with low performance.But if it's all you need, a small, low performance, petrol powered car can result in less emissions than an electric car such as the Nissan Leaf charged with today's grid...

Read more

What products are produced by the Electrical Equipment for Internal Combustion Engines industry?

Important products of this industry include armatures, starting motors, alternators, and generators for automobiles and aircraft, and ignition apparatus for internal combustion engines, including spark plugs, magnetos, coils, and distributors.

Read more

Why gas cars are better than electric cars?

Even more, PHEVs use 30 to 60 percent less fuel than conventional gas powered cars.If the electricity is sourced from renewable resources, the amount of greenhouse gas emissions can be reduced even further.PHEVs usually have a better fuel economy than their conventional gas powered counterparts.

Read more

Are diesel pickup trucks more fuel efficient?

Yes a diesel pickup truck will be more fuel efficient than those that run on normal fuel. Diesel is designed to run longer than the regular fuel however it comes at a higher cost.

Read more

Are small cars more fuel efficient?

Cars with the smallest engines are not necessarily the most efficient, as road tests contradict manufacturers' claims.Motorists are usually advised that smaller cars can travel more miles per gallon (mpg) than those with larger engines, making them cheaper and more environmentally friendly to run.

Read more

Why is an internal combustionengine rather than an external combustion engine?

The external combustion engine ( a steam engine is a good example) burns it fuel to create an energy source that is then transported (piped) to a device to create mechanical motion.The internal combustion engine burns its fuel inside the device creating the mechanical motion (piston car engines a...

Read more

Are gasoline engines efficient?

Gasoline (petrol) engines Modern gasoline engines have a maximum thermal efficiency of about 25% to 50% when used to power a car.At idle, the thermal efficiency is low, since the only usable work being drawn off the engine is from the generator.

Read more

Are combustion engines dangerous?

The dangers of internal combustion engines as ignition sources.Internal combustion engines can be hazardous if used in facilities that process flammable gases and liquids.An internal combustion engine could ignite flammable gases or vapors, and the consequences could be devastating.

Read more

Why is more oil required to operate a two cylce engine than a four cycle engine?

Because with a two cycle engine the oil is burned with the gas mixture, while the four stroke if in good working order will consume little to no oil because it performs its purpose in a bath system. Meaning that it constantly coats the moving parts.

Read more

Why does a diesel engine produce more torque than a petrol engine?

The cylinder pressures when the fuel fires are higher, up to twice the pressure in a petrol engine, meaning the piston is pushed down with more force and turns the crank with more torque. The piston stroke of a diesel engine is longer, so there is more leverage on the crankshaft, thus it turns th...

Read more

Which engine is more efficient in terms of compression ratio?

For a conventional gasoline engine, the higher the compression ratio, the more efficient the engine. US passenger cars have not had very high compression ratios for about 30 years for multiple reasons. During 1970-1972, Chrysler had the highest compression ratios in US production cars, requiring ...

Read more

Is an engine more efficient if the air is preheated?

No, in fact the cooler the air is the better. Like all gases when air is heated it expands and when it is cooled it retracts, so the cooler the air is the more your engine will be able to suck in therefore creating more power, this is why turbocharged engines usually have an intercooler on them.

Read more

Why are two stroke engines more powerful?

A two stroke engine can produce twice the amount of power (and makes twice as much noise) than a four stroke engine of the same size.This is because it fires once every revolution, giving it twice the power of a four stroke, which only fires once every other revolution.

Read more

Are there any other choices other than the combustion engine on sale to the general public?

Yes there are Hybrids and 100% electric vehicles such as the Tesla, Ford Focus Electric, Nissan Leaf, and others.

Read more

Why electric motor is greater?

it is because you will save money on energy expenses in comparison to a gasoline engine..

Read more

Why are internal combustion engines bad for the environment?

First I want to say that I love cars. I love to drive them, hot rod them, race them etc. However the internal combustion engine is a Gross Polluter. Even the best ones only manage to burn a small percentage of their fuel and what is left pollutes the environment by dirtying the air we breath. And...

Read more

Is an electrical engine better than a gasoline engine?

For the daily use (office-home) electrical engines would definitely benefit the owner. It could give him more mileage than gasoline and it does not produce pollution. The only thing is, once you struck empty on your gasoline, you can't just fill her up and then hit the road again, you would have ...

Read more

Why do engines lose efficiency?

Mechanical wear. This is compounded by a lack of maintenence; harsh enviorment; and/or poor design and metalurgy. There is no such thing as perpetual motion!

Read more

Why are more stops cost more money than non-stop on a airline?

Because you get a break, and they have to change planes sometimes. And because they want more money. (= They are so cheap

Read more

Is rocket engines are internal combustion engines?

YES the oxidizer and propelant are mixed into a chamber the ignited.

Read more

What is the definition of combustion efficiency?

The ratio of optimum energy derived from the minimum use of fuel energy during combustion.

Read more

Why 2 strokes engines are lighter than 4 strokes engines?

There is no oil resivoir holding oil that weighs around 1.7 pounds per quart. A 2 cycle engine also does not have valves which a 4 cycle does. All this makes the 2 cycle engine simpliar and lighter.

Read more

What are the engine sizes for a 1992 GMC Sonoma are there more than one V6?

1992 GMC TRUCKS SONOMA 2.5L 4-cyl Engine Code A 2.8L 6-cyl Engine Code R 4.3L 6-cyl Engine Code W 4.3L 6-cyl Engine Code Z Good Luck and Remember. Change Your Mind, Not Your Oil. Use the First In Synthetic Motor Oil's. See My Bio For Information & Contact Details.

Read more

How can you increase volumetric efficiency i n an internal combustion engine?

Turbo charging or super charging can give significant gains. Also, cold air intakes can raise the output of an engine by approximately 5-10 HP.

Read more

If defective blower motor draws more current than a good motor because?

defective motor will not run, also cause the blower motor speed resistor to burn out and eventually blow the fuse. a motor with defective bearings will draw excessive current causing either the fuse to blow or cause the motor to overheat

Read more

How is a internal combustion engine similar to a electrical engine?

Well the only way the two are similar is that they both mechanically power or drive something. They both generate power and energy. But one runs off electricity usually magnetic energy. An internal combustion engine runs off a fuel such as gasoline or diesel fuel and emits gases i.e Carbon Monoxi...

Read more

Why does diesel cost more than gasoline?

Diesel costs more then gasoline because it uses more petroleum to make it. Also, diesel costs more then gasoline because it has about 20% more energy then the same amount of gasoline.

Read more

Are electric cars safer than petrol cars?

No difference, petrol cars have fuel tanks which are highly flammable but electric cars have heavy batteries that have cables running through the car which use high voltage electricity of 120-144 volts which could be dangerously exposed in the event of an accident. However, that is only one aspec...

Read more

Are electric cars better than petrol?

Advantages of Electric Cars: Electric cars are also much more quiet and smooth than petrol cars are.Overall, electric cars are generally cheaper to operate, and not just because of the low fuel costs, but also because they don't require the maintenance and oil changes that petrol cars do.

Read more

Are electric cars more eco friendly?

But how environmentally friendly is an electric car if its ultimate energy source is an oil-fired power plant? Multiple studies have found that electric cars are more efficient, and therefore responsible for less greenhouse gas and other emissions than cars powered solely by internal combustion e...

Read more

Why is co more toxic than co2?

Carbon monoxide gas is more dangerous than carbon dioxide gas.Carbon monoxide is poisonous, whereas carbon-dioxide is non-toxic in nature.Carbon monoxide is poisonous because it is capable of forming a complex with haemoglobin (carboxyhaemoglobin), which is more stable than the oxygen-haemoglobin...

Read more

Why do SUVs cost more than minivans?

they are bigger stronger

Read more

Why DC is more dangerous than AC?

One of the reasons that AC might be considered more dangerous is that it arguably has more ways of getting into your body.Since the voltage alternates, it can cause current to enter and exit your body even without a closed loop, since your body (and what ground it's attached to) has capacitance.D...

Read more

Why can a car engine do more work than your body as it moves?

Because a car can turn fuel into power more efficiently that you body can.

Read more

Why do car engines provide for more speed than roadway speed limits allow for?

It could for emergencies, or for passing other vehicles on the road. It may also be based on the dynamics of gasoline driven engines.

Read more

Is electric car an internal combustion engine or is the a different type of engine?

An electric car is powered by a large electric motor. This motor is powered by the use of magnets in a coil inside the motor. When electric current is run through the motor, the drive shaft spins. This type of motor has an advantage over internal combustion engines because it offers all its torqu...

Read more

Are electric cars cheaper than gas cars?

I don't think most consumers realize that fueling a car with electricity is much cheaper than fueling a car with gas

Read more

Are electric cars safer than gas cars?

But the increased incidence of electric vehicles on America's roads is certainly making roads safer! Because they are powered by batteries instead of flammable gasoline, electric vehicles have a lower risk of fire than their gas counterparts.

Read more

Are electric cars faster than gas cars?

Electric cars are capable of being quicker than gas-powered cars, but EVs aren't yet capable of going faster.Electric vehicles generate much more torque than gas vehicles, which is important because torque is what drives the vehicle forward.

Read more

Why AC is more dangerous than DC?

DC is more dangerous in one respect in that it causes more electrolysis in the tissues than AC.Realistically (statistically) speaking, AC is more dangerous that DC.This comes from the fact that 120/240v AC is the voltage that we are most likely to encounter - which can kill us.

Read more

Why is diesel more viscous than petrol?

Because it's made lower down on the 'cracking tower' . -The higher gas is vented off, the less viscous it will be.

Read more

Why is velocity more important than speed?

In physics, velocity is more important than speed because it tells you more about the object's motion.Always, the more you know, the better.Again, speed has no direction, velocity does.Speed is the magnitude of the velocity.

Read more

Why must big trucks have more powful engines than compact cars?

Because of the weight of the load they are trying to move. Another factor, called "torque" also comes into play.

Read more