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Hi, Can a fan produce electricity? My teacher expects me to know this but I don`t have a clue. If you know about this please give me a few of your ideas. | |||||||||||||||||||||||||||||||||||
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| ![]() Powered by | ![]() Q. Fan which produces electricity also? | |||||||||||||||||||||||||||||||||


Q. Can a regular dynamo, ex. the electric fan dynamo, produced electricity if rotated the other way?
"- if you rotate it backwards you'd generate the negative voltage...."
Yes. The direction of motion gives the polarity of the generated voltage - if you rotate it backwards you'd generate the negative voltage.


Q. How can i produce a 60-70 kilowatts electricity from solar power? if yes, how can i do it? i want to use solar power to run my home appliances, lights, fans.... i want to produce a 60-70 kilowatts electricity power (per day) from solar power. how can i do it? what do i need to do it?
please let me know step by step instructions, or details/links.
thanks
"The daytime to store some of the electricity for night-time use..."
First get out your calculator. Looking at a little panel (just under 9 inches square) at
http://www.batterystuff.com/solar-chargers/SP-5.html
this will give out 5 watts. For 60 kW, you will need 60000 / 5 = 12000 of these, covering an area of 6750 square feet or 750 square yards. Not many people have a roof that size facing the sun. Perhaps you mean 60 kilowatt-hours through the day. Then, of course, the sun is up for only part of the day, so you will have perhaps 8 hours to generate the daily requirement at 60000 / 8 = 7500 watt output, needing an area of only 840 square feet, still big but now manageable. You need to generate more than you need in the daytime to store some of the electricity for night-time use . The only practical form of storage is batteries. A big car battery is rated at 12V 100 ampere-hours, equivalent to 1.2 kWhr, so you will need about 40 of those for your evening and night consumption. After that you need an inverter, which turns the DC produced by the solar panels and stored by the batteries into AC mains voltage to power all your domestic equipment. The inverter is not 100% efficient and the sun is often obscured by cloud and rain, so you might start by doubling all these dimensions. This is going to be a very expensive exercise.


Q. Can the mechanical movement of a ceiling fan be used to generate electricity? if yes,what amount of electricity would be produced, is that amount sufficient 2 run another fan
"The generator that it is driving will produce..."
Yes it can be used to drive a generator and produce electricity but in doing so it will use more additional watts than the generator that it is driving will produce. Again the same old thing the efficiency rating of any machine is always less than 1 due to friction which causes heat losses even in a well designed machine.
Yes.you could run another fan off of the output of the generator driven by the first fan. But it would necessarily have to be smaller because you would have less power available than you had for the first fan. You could repeat this until you got down to the smallest fan in the whole fu(king world. Now you have wasted all the wattage you had to start with through heat losses in the numerous ever decreasing in size fans that you have added.
You just can not get more wattage out of any apparatus than you put in to it. You will always get a little less out than you put in.


Q. Ok now i know 5m/s and 30 meter is enough to produce electricity for three homes.? how much electricity would it produce ? you three homes and they all have three tv,refrigerators , 9 light bulbs and three ceiling fans .how much electric power would a wind fan create for these three houses?
That's 'average' homes.
They'd have a bit more than that.
A 30 M. turbine should harvest better than 45 KW.


Q. What about putting a dynamo at the front of a train? this would then use the wind to turn a fan,producing electricity for say the lights or other electrical appliances.
"Push the fan along and generate the electricity than it would use just to..."
Brilliant... and the wind resistance caused by the fan would slow the train down so that it would need more energy to move it along.
In fact, as using a fan to generate electricity is likely to be quite inefficient I would expect that the train would actually need more energy to push the fan along and generate the electricity than it would use just to generate the electricity direct in the normal way.
So what you've just invented is a way of WASTING energy. And of course, as soon as the train stopped at a station all the lights would go out...


Q. How do i rewire my fan motor? i've disected my fan and removed the motor. i would like to rewire the fan so that it produces electricity when the motor turns. i know it's possible to create electric energy using kinetic energy...but what's the simplest way to go about doing it with what i have? if your interested...i'll send you pictured of the parts via e-mail
you shouldn't have to rewire anything. a(n AC) motor is a generator and a generator is a motor. physically they are the same thing! attach the motor contacts to a multimeter or oscilloscope, crank on that bad boy and watch what happens!


Q. Which type of electrical motor will produce electricity? i tryed small fan at about 2000 rpm and my light did not light up
JELONEK,
WHAT ARE YOU BUILDING?
UNKSLY


Q. How can you start a wind farm? who can help on starting one on a undeveloped country? what kind of research it needs to be done if any? what company provides the wind fans to produce electricity? any information that can help in presenting to those countries that depend on oil; and they may be in the right location to start a new way of providing electricity.
http://www.gedolbear.com/issue65.htm#a
http://www.mazepath.com/uncleal/wind.htm
Peaches have pits.
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