best non electric mpg cars image
Stev49
I caught part of a show regarding non-conventional automobile fuels, including fuel cells, high powered electric cars (very fast and quiet), hydrogen, and very high mileage/high powered vehicles (e.g. 140 MPG with lots of horses). After listening to this for a few minutes, it seems like electric motors have something to offer to aviation. Thanks
Answer
Good Question.
If you would like to see an electric airplane, go to the link below. It is from EAA AirVenture 2007 at Oshkosh, Wisconsin. If you like experimental aircraft and stuff like that, check out the EAA site.
Leary to fly - It is fun!
Good Question.
If you would like to see an electric airplane, go to the link below. It is from EAA AirVenture 2007 at Oshkosh, Wisconsin. If you like experimental aircraft and stuff like that, check out the EAA site.
Leary to fly - It is fun!
How much does charging a batttery powered car cost?
Korey
My Mum wants to know how the price of charging a battery for an electric or a hybrid stacks up to the price of fuel for a gas-powered car.
Answer
This depends on the hybrid or electric car and the prices of electricity in your area. Most of the hybrid cars on the market today aren't actually charged by plugging into the wall, they recharge while you are driving and braking only plug in hybrids recharge from an outlet. For charging the battery it is just a calculation of the energy used, and I will use the tesla roadster as an example. Their battery takes 3.5 hours to charge at 240V and 70Amps. Power (Watts)= I*V so P=70*240 or 16800W. It takes 3.5 hours at this power to charge the battery so you use 58800 Whrs or 58.8 kWhrs. Electric companies charge by the kWhr, so if you pay 15cents per Kwhr that would cost $8.82 to charge the car. Since this is completely electric and can go an estimated 245 miles per charge that is about 3.6 cents per mile to drive. This is of course an estimation, the price will vary depending on what your electric company charges per kWhr. But just for comparison a gas powered or non-plug in hybrid car (plug in hybrids are gas and electric) that gets 40 mpg with a 15 gallon tank and with gas at $3.30 would cost about 8.25 cents per mile to drive. Electric and hybrid cars are obviously cheaper to operate but they are usually more expensive to purchase and you also have to factor in the fact that batteries only last around 5 years and are very expensive to replace. At the moment the total cost of buying and operating a hybrid car is around equal to or more than the cost of a non-hybrid car. They are better for the environment, and you pay less for gas, but if you plan on keeping them for more than 5 years than you will probably have to pay to replace the batteries. Warranties for hybrids and electric cars expire when the expected productive life of the batteries ends, so if you plan on keeping the car longer than that you will probably have to pay for new batteries.
This depends on the hybrid or electric car and the prices of electricity in your area. Most of the hybrid cars on the market today aren't actually charged by plugging into the wall, they recharge while you are driving and braking only plug in hybrids recharge from an outlet. For charging the battery it is just a calculation of the energy used, and I will use the tesla roadster as an example. Their battery takes 3.5 hours to charge at 240V and 70Amps. Power (Watts)= I*V so P=70*240 or 16800W. It takes 3.5 hours at this power to charge the battery so you use 58800 Whrs or 58.8 kWhrs. Electric companies charge by the kWhr, so if you pay 15cents per Kwhr that would cost $8.82 to charge the car. Since this is completely electric and can go an estimated 245 miles per charge that is about 3.6 cents per mile to drive. This is of course an estimation, the price will vary depending on what your electric company charges per kWhr. But just for comparison a gas powered or non-plug in hybrid car (plug in hybrids are gas and electric) that gets 40 mpg with a 15 gallon tank and with gas at $3.30 would cost about 8.25 cents per mile to drive. Electric and hybrid cars are obviously cheaper to operate but they are usually more expensive to purchase and you also have to factor in the fact that batteries only last around 5 years and are very expensive to replace. At the moment the total cost of buying and operating a hybrid car is around equal to or more than the cost of a non-hybrid car. They are better for the environment, and you pay less for gas, but if you plan on keeping them for more than 5 years than you will probably have to pay to replace the batteries. Warranties for hybrids and electric cars expire when the expected productive life of the batteries ends, so if you plan on keeping the car longer than that you will probably have to pay for new batteries.
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Title Post: Why not electric motors to power airplanes?
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