50 punkti
Autor soovib selle materjali allalaadimise eest saada 50 punkti.
~ 4 lehte
Lehekülgede arv dokumendis
2013-12-03
Kuupäev, millal dokument üles laeti
1 laadimist
Kokku alla laetud
0 arvamust
Teiste kasutajate poolt lisatud kommentaarid
sana punkin
Õppematerjali autor
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
· 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 acceleration. 3. The batteries of the electric motor recharge automatically by harnessing the kinetic energy produced during braking. 4. Hybrid car engines produce less emission, give better mileage, idle less, and are fuel efficient. Why to purc has e a hybrid c ar? 5. The aerodynamic design reduces drag and the tires are made of
ELECTRIC CARS 2016 Electric car – what is it? • Powered by one or more electric motors, using electrical energy • Energy is stored in rechargeable batteries or another energy storage device • Require charging. Can be charged from home or special station History • First electric cars were produced in 1880s • Were popular in 19th and 20th cebtury •Then ICEs became more advanced Advantages • 3 x more efficient as ICE • Quieter • Do not emit tailpipe pollutants • Instant, strong and smooth acceleration • Lower running costs • Government discounts Disadvantages • Battery wears out over time • Batteries are expensive • Limited driving range (best range Tesla S – about 400km) • Charging takes a long time (unless using superchargers)
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
The following 10 activities will be a great help in solving our transportation problems. Do as many of these as you can, and encourage your friends and family to do the same. Together we can make a difference! 1. Get a Better Vehicle --- If you need to drive, replace your old car with one of the new hybrid gas and electric cars - and you could save as much as $11,000 on gas and produce 107 fewer tons of carbon dioxide. The new efficient hybrids are reliable and drive just like standard cars. If you make no other transportation changes in your life, this one will make a huge difference. 2. Walk to Your Destination --- If it's a reasonable distance, you'll save energy and improve your health. Walking also helps to reduce tension and stress. Get some good walking shoes, dress for the weather, and hoof it! 3. Ride Your Bike --- If you need to travel a greater distance, take your bike. Again, it's good exercise, it feels great and it's fun. 4
governments have looked into buying land and having residents relocate further inland. How to help prevent global warming GREEN JOBS AND CLEAN ENERGY Choose renewable energy. Pick a Green-e-certified energy supplier that generates at least half of its power from wind, solar energy and other clean sources. If you don't have that option, look at your current electricity bill to see if you are able to support renewable energy in another way. DRIVE SMARTER CARS Choose an efficient vehicle: High-mileage cars such as hybrids and plug-in hybrids use less gas and save money. Over its lifetime, a 40-mpg car will save roughly $3,000 in fuel costs compared with a 20-mpg car. Compare fuel economy performance before you buy. Drive smart. If all Americans kept their tires properly inflated, gasoline use nationwide would come down 2 percent. A tune-up could boost your miles per gallon anywhere from 4 to 40 percent,
Depending on the result of these calculations, the ACU may also deploy various additional restraint devices, such as seat belt pre-tensioners, and/or airbags (including frontal bags for driver and front passenger, along with seat-mounted side bags, and "curtain" airbags which cover the side glass). Each restraint device is typically activated with one or more pyrotechnic devices, commonly called an initiator or electric match. The electric match, which consists of an electrical conductor wrapped in a combustible material, activates with a current pulse between 1 to 3 amperes in less than 2 milliseconds. When the conductor becomes hot enough, it ignites the combustible material, which initiates the gas generator. In a seat belt pre-tensioner, this hot gas is used to drive a piston that pulls the slack out of the seat belt. In an airbag, the initiator is used to ignite solid propellant inside the airbag inflater
wake up. This is a family who have chosen to fill their home with every conceivable gadget. They have nine television sets, including one in each bedroom and in the kitchen. All the children have their own personal computers and CD players. Of course, there are all the usual appliances we all take for granted, such as the washing machine, tumble drier, dishwasher, deep freeze, microwave oven, and video recorder, but they also have an electric trouser press, two power showers, an Olympic-sized spa bath and jacuzzi, three cars, and a music system which plays throughout the whole house. The experiment. What happens if all the props of modern living are removed? To help us find out, we asked the Joneses to turn back the clock fifty years and to switch off all their labour-saving gadgets and push-button entertainment for three days. We also wanted them to stop using their cars
annaabi.ee 
Sisene Facebook'ga
Sisene Google'ga
Sisene LinkedIn'ga
Kõik kommentaarid