best electric bike for under �1000 image
iojhyt675
a bike exercise that generates electricity for home use. if a small city wants to generate electricity by these bike exercise generating electricity, how many persons needed that will feed 1,000 homes with electricity such are for A.C. and heater, TV...etc
the video on youtube will show you what i mean, or search for "CYLEC" Electricity Generating Exercise Bike : DigInfo
http://www.youtube.com/watch?v=HjVYBAicVKU
Answer
A typical person can produce about 100 watts over a sustained period on one of these things (this is a limitation of the body, improvements in the generator will not change it), but not 24x7. We need rest periods. (Even marathon runners have to rest after the marathon.) Only the very fittest individuals can do better than this.
(You doubt this? Cranking a generator under load is HARD. A lot of science and tech museums have a hands-on - or feet-on - exhibit where they have one of these things set up with a power meter. Anyone interested in energy should go and find out how tough it is to produce 100 watts.)
But let's say we employ only Tour-de-France class athletes. They've been measured at 300 watts output over a one hour period. I doubt they could do that for 8 hours straight... but let's assume they can.
So over an eight-hour shift, one of these people might produce 8 x 300 = 2400 watt-hours, or 2.4 kWh.
The average home in the US uses a *round-the-clock average* of just about 1000 watts. That's 24 kWh per day.
So you need 10 workers - all of them Tour de France-level athletes, each working one eight-hour shift per day - to produce the electric energy for ONE average home.
But, assuming they live three to a home, you have to add 3.3 homes to the city! It's a net loss.
Even if you assume that each can work 16 hours/day instead of only 8, you still need 5 workers per existing home... plus you have to power and light the houses those workers live in. Even if they pack themselves five to a home it's merely breaking even.
AND you have to feed them all. Even Tour de France cyclists have to eat. The more energy your body is producing, the more you have to eat. And the body is a relatively inefficient converter of food energy to mechanical energy. But assuming it was 100% efficient, to produce that 2.4 kWh of energy would require eating over 2000 calories' worth (large calories, or kcal) of food *in addition to* their normal consumption. That's by direct conversion of units. In practice (due to inefficiency) it would be much larger. Nothing in energy is free, not even human muscle power.
But, damn! They'd have legs like tree trunks...
A typical person can produce about 100 watts over a sustained period on one of these things (this is a limitation of the body, improvements in the generator will not change it), but not 24x7. We need rest periods. (Even marathon runners have to rest after the marathon.) Only the very fittest individuals can do better than this.
(You doubt this? Cranking a generator under load is HARD. A lot of science and tech museums have a hands-on - or feet-on - exhibit where they have one of these things set up with a power meter. Anyone interested in energy should go and find out how tough it is to produce 100 watts.)
But let's say we employ only Tour-de-France class athletes. They've been measured at 300 watts output over a one hour period. I doubt they could do that for 8 hours straight... but let's assume they can.
So over an eight-hour shift, one of these people might produce 8 x 300 = 2400 watt-hours, or 2.4 kWh.
The average home in the US uses a *round-the-clock average* of just about 1000 watts. That's 24 kWh per day.
So you need 10 workers - all of them Tour de France-level athletes, each working one eight-hour shift per day - to produce the electric energy for ONE average home.
But, assuming they live three to a home, you have to add 3.3 homes to the city! It's a net loss.
Even if you assume that each can work 16 hours/day instead of only 8, you still need 5 workers per existing home... plus you have to power and light the houses those workers live in. Even if they pack themselves five to a home it's merely breaking even.
AND you have to feed them all. Even Tour de France cyclists have to eat. The more energy your body is producing, the more you have to eat. And the body is a relatively inefficient converter of food energy to mechanical energy. But assuming it was 100% efficient, to produce that 2.4 kWh of energy would require eating over 2000 calories' worth (large calories, or kcal) of food *in addition to* their normal consumption. That's by direct conversion of units. In practice (due to inefficiency) it would be much larger. Nothing in energy is free, not even human muscle power.
But, damn! They'd have legs like tree trunks...
Where can I get a motor trike (3 wheel) in the Dallas / Ft. Worth area that I can make payments on?
redriverwo
If you know of someone or a dealership please provide me w/ the contact info and send to redriverwoman42@yahoo.com
I am looking for a motorcylce trike 3-wheeler such as a Honda Goldwing-something that the conversion has already been done on.
Answer
The Pep Boys auto parts stores, as well as AutoZone and others, sell very cheap Chinese ATV's and small electric and gas bikes. They are priced under $1000 in most cases, and some are even under $500 so making payments wouldn't be needed unless you're really broke.
The Pep Boys auto parts stores, as well as AutoZone and others, sell very cheap Chinese ATV's and small electric and gas bikes. They are priced under $1000 in most cases, and some are even under $500 so making payments wouldn't be needed unless you're really broke.
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Title Post: in your opinion how many persons needed for this bike generating electricity to help a whole city?
Rating: 83% based on 9498 ratings. 4 user reviews.
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Rating: 83% based on 9498 ratings. 4 user reviews.
Author: Unknown
Thanks For Coming T0 My Blog
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