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Tartu Kutsehariduskeskus Autode ja masinate remondi osakond Rainer Kaine AT-109 Iseseisev töö Electric cars Instructor: Tauris Vijar Tartu 2010 Introduction In this essay i´m write electric cars and this how these cars are built, how easy is built electric car, how much costs electric cars. The problems for electric cars, there are many problems why peoples still can´t use quiet and more green cars. But even the electric car is not all green because the electricity produced for nuclear, coal, oil shale and natural gas. These ways to get electricity pollutes nature, the only difference between lies in the fact that pollution is in the one place. Coal Electric power station Oil shale power station in Narva What is a electric car An electric car is a plug-in battery powered automobile which is propelled by electric motor
Natali Koppel TÖ41 Vo c abulary · Fuel efficient kütusesäästlik · Lightweight kerge · Aerodynamic voolujooneline, aerodünaamiline · Purchase soetama, omandama, ostma · Reduce vähendama Intro duc tio n · Care for the environment? · Want to save the planet? · Then you must think in terms of fuel efficiency, non-polluting, and eco-friendly transport. · The answer doesn't lay completely in purchasing and using a hybrid car. They do make a statement by being compact and fuel efficient, but also carry various issues. Why to purc has e a hybrid c ar? 1. Made of lightweight materials hybrids are small in size. The engine is designed to be fuel efficient. When the car halts at a signal, the engine will automatically shut down and restart when the car shifts into gear. 2. These cars have the advantage of being powered by a gasoline engine and an electric motor that takes care of
Benz's invention. Many inventors started to boost up the fourwheeler. In 1892 Rodolf Diesel started to make a new engine. In 1897 Diesel finished his first engine. It was more powerful than the fourstroke engine. Cars bodytypes Sedan Universal car body Coupe Cabriolet Nowadays Cars can be sorted by enginetypes. There are gas engines, diesel engines and some cars get their power even from electricity. Nowadays the most popular engines are the internalcombustion engine combined with the electrical engine forming a hybrid car. Hybrid car Marks There are lots of different car marks. Best known are: BMW, Audi, Ford, Volvo, Mazda, Ferrari. People use cars every day.
Although over the years more women have started to use a car, but the change between male and female car users have still persisted. Females have started to make working-career by themselves and the need for transportation has increased; one of the comfortable ways to get to a work would definitely be a car. Housewives can also use car to do the grocery shopping or to take children to school. (http://academic.mintel.com A) Since 1998 more and more households are owing 2 cars. The percentage has been raised 6,4 per cent from 1998 to 2004. Although the overall percentage of car owning have went down by 0,7 per cent at the same period. The survey taken in 2004 december shows that people who are using car to go to work is 29 per cent and 25 per cent use car to take out their family. 26 per cent have a household at size 4 and to take family out they will propably use a bigger car than mini because it will not be so comfortable to squeeze four people in to a mini
Electric car appeared before the internal combustion engine. The first electric car in the form of a truck with an electric motor was established in 1841. Limitations · The large mass of the batteries. · Battery charging time, but there are ways to "quick charge" to the part-time battery capacity. · In most cases, low dynamic performance. · In some hybrids in general there are no electric batteries. · The major auto companies after the 2000s, paid little attention to electric cars in favor of hybrids. and many other Advantages · Overall simplicity of design and management in comparison with hybrid vehicles. · lower number mechanical parts and components. · Improved reliability. · Ease of repair and service, and as a result, and lower operation cost. · Less pollution. No transmission unlike mechanical hybrids. modern Application The world leader in electric transportation - China. widely used in various enterprises
thermodynamic cycle. A stroke refers to the full travel of the piston along the cylinder, in either direction. While risqué slang among some automotive enthusiasts names these respectively the "suck," "squeeze," "bang" and "blow" strokes.[1] they are more commonly termed 1.1.1.3) High-speed (approximately 1,000 rpm and greater) engines are used to power trucks (lorries), buses, tractors, cars, yachts, compressors, pumps and small electrical generators. As of 2008, most high-speed engines have direct injection. Many modern engines, particularly in on-highway applications, have common rail direct injection, which is cleaner burning. 1.1.1.4) Medium-speed engines are used in large electrical generators, ship propulsion and mechanical drive applications such as large compressors or pumps. Medium speed diesel
used and then compare her energy consumption to how much she really needed. To do this, they figured out how much energy Jules was using for entertainment, light, heating and cooling, cleaning, preparing food, transportation, and communication devices. They discovered that the amount of energy used for any purpose could be measured in different ways. Light bulbs are measured in watts. Air conditioners and hot water heaters are measured in BTUs, while energy used by cars is measured in gallons of fuel. They used a spreadsheet to figure out how much energy they consumed for each of their activities. Each of the lights, car miles, games, and other appliances was converted to a common unit of power consumption called kilowatt-hours. The spreadsheet was used to determine how many kilowatt-hours were used during each day, each week, and each year for each energy consumption activity. The spreadsheet converted their energy consumption
power is to make a normal-sized engine more efficient. You can accomplish this by forcing more air into the combustion chamber. More air means more fuel can be added, and more fuel means a bigger explosion and greater horsepower. A turbo/supercharged engine produces more power overall than the same engine without the charging. Both superchargers and turbochargers do this. The difference between the two devices is their source of energy . TURBOCHARGER When people talk about race cars or high-performance sports cars, the topic of turbochargers usually comes up. Turbochargers also appear on large diesel engines. A turbo can significantly boost an engine's horsepower without significantly increasing its weight, which is the huge benefit that makes turbos so popular! . In fact, the term "turbocharger" is a shortened version of "turbo-supercharger," its official name. The turbocharger is bolted to the exhaust manifold of the engine. The exhaust from the cylinders spins the
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