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History of electric motor essay
Principles of operation of electric motor
Electric motor
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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.
By the early 1900’s, automobiles had become a common sight on the roads of the United States. Edison tried to create an electric battery that could power an electric car. Due to the abundant availability of gasoline, the electric car did not receive the response that Edison hoped for. However, the car battery was a huge success, and still plays a pivotal role in the automobile industry.
The force that that turns the armature comes from the magnetic field of the armature trying to line up with the external magnetic field of the stator. This force is called torque. This torque will cause the armature to turn until its magnetic field is aligned with the external field, but no further. How does the armature continue to spin? One of the magnetic fields must be changed so that the armature has to turn again. The armature will spin so long as there is always a torque acting on it. How this is accomplished is what sets each type of electric motor apart.
...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.
Energy efficient motors use more copper and iron than regular motors. They also consume less energy than regular motors.
I bet you didn't know that the first cars made were all mostly electric. But as time passed gas powered cars became more popular through the years. There were few if any electric cars available as timed moved on. Everyone believed that gas powered vehicles were more convenient than the electric powered ones. I believe that gas powered vehicles are better because gas powered cars have more function ability. The range that electric vehicles have is poor compared to gas vehicles. Electric vehicles don't function very well when the weather is cold. You'll need to charge your car pretty much every night. You are only going to be able to go 80 mph. If you go up a big hill your range goes down. electric vehicles (rather ev's) do pollute but they don't pollute the same way that gas cars pollute.
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 electric use will not give off pollution that is unhealthy for the environment and its
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.
The technology of electric cars has been around since the beginning of the nineteenth century but soon disappeared as the gasoline-powered engine took the limelight. It took until the seventies with oil prices at new heights that electric cars even became considered as an alternative. The main reasons the public identifies electric cars to be unattainable is because of their high cost and limited capabilities. In the early developing stages electric cars were extremely costly, basic, and so limited from a technical standpoint that many people thought buying a golf cart would be more practicable. Unfortunately, these prejudgments made many people blind to the vast improvement electric cars have made over the years. Their improvements have much to do with that major auto manufactures such as General Motors, Ford, Chrysler, and Tesla Motors producing high-performance electric vehicles. With major manufacturing companies continuing improvements on electric car engineering, the future of commuting automobiles has become electric.
Bellis, M. History of Electric Vehicles: Decline and Rise of Electric Cars from 1930 to 1990. (n.d.). Retrieved March 31, 2012, from http://inventors.about.com/od/estartinventions/a/Electric-Vehicles.htm
Electrical motors play an important role in today’s society, from powering domestic appliances like blenders to industrial equipment such as trains. It almost seems impossible to not use an electric motor in our daily lives. In the comfort of our home, electric motors will operate fans, refrigerators, and air conditioners to just name a few. Researchers are constantly looking for new ways to incorporate electrical motors in our lives.
electricity as the “fuel” instead of gasoline or some other combustible fuel. The electric motor in
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.
Light bulb is one of the most influential inventions in the word. It makes us work more productive at night and helps us enjoy more activities at night. It significantly change people lives all over the world. The born of light bulb also helped us by making more inventions that related to light, such as phones, televisions, and computes. By using light bulb, we actually reduced the probability of having fire accidents because if we don’t have light bulb, we will use candles instead which can cause fire easily. There are a lot more benefits we get from light bulb, and all of these are credited to Thomas Alva Edison.
Electricity has become a basic necessity for most people all over the world. We are depending on electricity for our everyday lives and if one day we did not have electricity we would have difficulty going through the day. I think we need to be more dependent on things that do not use electricity and only use electricity sometimes as a treat so just in case if one day electricity all goes away we could still live comfortably and still have a great life even without it.