Electricity is not only used to turn on lights, or make things work, it's also being used in automobiles and other motor-run things. Electric motors also conserve energy and isn't as harmful as a diesel engine or motor engine. Electric motors date back all the way in the 1800's when Thomas Davenport built the first real working electric motor. He used a spinning wheel technique and levers that move back and forth repeatedly. His work ended up being used to move trolleys, but not till 50 years after his death. The picture on the right is an example on how his electric motor looked like. This was used to transport thousands of people each day to work, cities, stores, ect. AC and DC are the two most common motors. You might know AC motors, because they're used to run our air condition in our homes. DC motors came first, and they have certain advantages and disadvantages that AC motors don't have. Both these motors might be different, but they both use electromagnetic fields. AC motors use a primary and secondary welding. The primary part is attached to the wall power and gets energized, while the secondary motors receive energy from the primary motor. The picture on the left is an example of an AC motor, and how it works. Electric motors have six main parts; commutator, armature, field magnet, brushes, axle, and a DC, or direct current, of some sort. Each part does something special to make an electric motor to work. A commutator reverses the current direction between the rotor and external circuit. The armature takes the position of a nail in an electric motor. If you look at the image to the left, that is an armature. It’s made by coiling wires around two or sometimes even more poles of metal. The armature a... ... middle of paper ... ...it reaches a strong torque level once the rotor is running quick. One disadvantage is that its slow to start, which means there is low torque when it does start. It's used in fans, appliances, can openers, and it needs above 123 watts to work. So, in conclusion, electricity is also used in motors, not just light bulbs. Electric motors have been just added into cars to make them more sufficient! Electric motors are becoming more and more popular and also better to use. It's come a long way and has paid off all its work it has done. It's been used to get you from place to place, and provide energy for your household appliances. You probably wouldn't have the nice air conditioning in the summer time if the electric motor was never invented. It has served a purpose and still does today; it has made millions and millions of peoples' lives so much easier.
Electric cars have dated as far back as 1880, with the first model being mass produced in the later 1880’s. At early stages of automobiles, there were no clear benefits from either type of engine. In fact, a majority of cars in use at the time were electric. Steam and combustion engines were less developed and not as popular. Before the 1900’s an electric car held the land speed record for motor vehicles. (Bellis, 2014) As roads were built and the range that vehicles would need to travel increased, the need for a longer lasting vehicle rose. This is why at the turn of the century the popularity of gasoline powered engines arose. Electric vehicles were still valued for their short term transportation (within cities) and relatively easy use, but they began to lose prevalence as developments into combustion rose. Production for electric cars peaked in 1912 (Bellis, 2014) and saw a drastic decline since
In a DC motor, the armature consists of any number of windings, each one an electromagnet. The armature is immersed in a directional external magnetic field. This external field does not move, and can come from permanent magnets or electromagnets.
...late 17th century, and beginning of the 18th century, transportation was favored by American society so much, the wealthier would hire chauffer’s to take people places. So not only did the motor produce a better and more efficient life style, it also created a huge business industry, as we know it today called, “valeting”. The actual motor worked like this. “Two cups filled with mercury would contain a magnet and a wire with one being fixed and the other free to move. Whenever a current was passed through the wire, the free moving magnet or wire would revolve around its fixed partner due to the electromagnet forces being produced.” (History of Innovation). This first motor was a prime example of the fact that movement could be created by electricity and electricity could be created by friction. This motor was the most useful and applicable invention in the 1800’s.
Electric motors typically incorporate a locating and nonlocating bearing arrangement to support the rotor and locate it relative to the stator. Locating bearings position the shaft and support radial and axial loads, while nonlocating bearings handle radial loads and let shafts move axially to prevent overloading from thermal expansion.
Electric cars are becoming increasingly more necessary, and have more advantages than disadvantages. Electric cars help to decrease the noise, pollution as they are much quieter. They do not emit any (or much less) carbon emission than petrol cars. Electric vehicles are the greenest mode of transport in the personal transportation industry. For each litre of fuel used in an engine produces more than 2.5kg of CO2. CO2 will be produced by an electric car but still a very little amount. It is also possible to use renewable power or a green energy supplier in the electric car. Thus it would lead to less polluted and safe working environment for all of us. However, safety is a big concern with using vehicles. The fluids in the batteries actually take impact better than a fully made gas car because it is not that flammable. Petrol cars and diesel cars are more flammable than electric cars so they are greater of taking impact in the event of an accident. I think that this is a very good reason because fewer people would get injured or hurt. This would save money because electricity is cheaper than gas and electric cars are easy to operate. Also is very ECO –friendly which mean that it is cheaper to run and have to pay very little road tax. In a pure electric vehicle there’s nothing combustible and have far fewer moving parts than you would find in a petrol or diesel car.
Electric car is vehicle that is derived by at least one electric motor. It turns electric energy stored in rechargeable batteries into movement. Electric cars can make United States more competitive and environmentally cleaner. Electric cars kill many birds by one stone: less pollution, environmental security, reliable, and deflate oil demand. However, the government should subsidize them by reducing registration penalties, and encourage companies that are producing electric cars; for example, the pluses of these cars extend to several areas, and they deserve government support.
electricity as the “fuel” instead of gasoline or some other combustible fuel. The electric motor in
Electric cars were recently introduced to the auto world. They are very fuel efficient while still having all the practicalities of a regular car. They are quiet and have zero emissions. They also are cheaper to maintain and cheaper to own then a gas powered car. Even though car enthusiasts dislike the idea of going fully electric, it is a very conscientious choice. Electric cars might seem like a useless form of transportation, but they offer features that help keep the Earth clean.
An electric motor is a device used to convert electric energy into rotational kinetic energy. There are two different types of electric motors, and each has there own use. The different types are direct current and alternating current motors. Each of these motors will be analyzed in the following.
Cars general work with the engine turning over from the driver using their key which makes the four piston strokes start. Once that happens, it starts moving getting hot and while that is happening, it moves the transmission belt which moves the alternator, and the alternator starts generating power through kinetic energy which in turns keeps the battery powered so you don’t lose power while driving. After the engine does that then power is supplied to the various computers in the car which gets it started moving. The steering wheel is attached to a steering column and the several other parts of the steering linkage so steering is possible. The brakes have two different types on the front there can usually be disc rotors which work by the rotor being mounted on the rotor hub and held in place with the mounting bracket on the mounting bracket are brake pads which squeeze the rotor which cause the car slow down or stop. The brakes on the rear are drum brakes which are similar to disc brakes, but they have brake shoes which expand to stop or slow down the car. This is not always true though some cars just have disc brakes and some older cars have drum brakes the reason for this is because disc is more reliable than drum brakes. Of course after all that you would remove the key and it would then stop the engine and the belt from turning and then the majority of the electrical stuff turns off except for the battery.
Ac motors are mainly use for larger aircrafts. There are two main types of ac motors , depending on the type of rotor used. The first type is synchronous motor , which does not reply on induction and as a result , can rotate exactly at the supply frequency or a sub multiple of the supply . the magnetic field on the rotor is either generated by current delivered through slip motors and also rings or by a permanent magnet. Other types od the motor include eddy current motors. AC /DC mechanically commuted machines in which speed is dependent on the voltage and the connection. Second type is a induction motor which runs slightly slower than the supply frequency. The magnetic field on the rotor of the motor is created by an induced current . when the rotor rotates, the stator conductors are cut by the magnetic flux hence the reason an induced E.M.F is produced by them, because the magnetic poles are alternative N and S , they induced an E.M.F and hence current is armature conductors which first flow in one direction and then in the order. The single phase motor operates in a single phase supply and for use on numerous application like ceiling fans and also refrigerators ,food mixers ect. A single phase induction motor physically looks similar to that of the three phase induction motor except that its stator is
Most people today fill up their car with different qualities of petrol, because that's what the average car takes. They don't usually consider an alternative for the petrol that they load into their cars. Although petrol is widely used, it is not the only source for a car to get its power from; diesel and electricity are alternatives to the general petrol used by most cars. Although different from each other, diesel and electricity are alternatives to the average gasoline received at a gas station. Diesel is a more concentrated type of fuel that is usually used by big automobiles because they require a lot of power in a little amount of time. Electricity is a method that uses the power of batteries to produce a low horsepower but, nevertheless fast automobile. Electric cars are generally created to be soundless and environment friendly. The purpose of this paper is to classify and educate the reader of the different types of fuel available for an automobile to use: petrol, diesel, and electricity. The general petrol, used by most people, is usually the only type of fuel accepted on the average car in the United States today.
The effects of electricity control much of our daily lives. Many of our gadgets and everyday tasks are run by this wonderful source of power. For example without electricity we would not be able to make a cup of coffee in the mourning, or even make a long distance call to family or friends. There have been several technological breakthroughs by many brilliant people throughout history regarding electricity. It has come from being discovered as a small current to being transformed into useful power to run such things as computers. Ben Franklin, Guglielmo Marconi, Thomas Edison, Paul Nipkow, and Charles Babbage have all contributed to the advancement of electricity, and all of their advancements have supplied society in many ways.
Electrical motors function by converting electrical energy into mechanical energy by using the energy stored in the magnetic field (Sarma, 1981). The mechanical energy (torque) is produced when opposing magnetic fields try to lineup. Therefore, the center line of the north pole of a magnetic field is directly opposite to the centerline of the south pole from another magnetic field (Fitzgerald et al., 1981). The opposing magnetic fields in a motor are generated by two separate concentrically oriented components, the stator and a rotor (Figure 2-5).
Synchronous Motor: Supposed in light of the fact that rotor tries to match with the magnetic field in the stator. It has the stator of an induction engine, and the rotor of a dc engine.