The voltage depends entirely on the alternator you use, 230V mains is commonly used, and a single cycle can generate roughly 100W - for how long depends how fit the rider is.

But a cycle is a fairly efficient use of a bodies mechanical energy, your idea of collecting energy walking across a floor would collect next to nothing.

As I see it the idea is a complete non-starter?.

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ok friend

consider ideal gas law PV=nRT

assume that terms (n,R,T) are constant(by some means)

so only pressure and volume are variable

the system which we are thinking is variable volume system by means of a piston and at any time pressure * volume is constant(assumed)

by means of pressure pad or vehicle foot pump we compress air into the cylinder and try to get good amount of pressure to drive generator

so looking at my assumptions will it be possible practically?

 

friends
while gathering some info from my friends some suggested me to use flywheel technique presently used in clutches of bikes

i have no idea how will it be useful???

can anyone help ???

 

well if you whip the cyclist and he's fit maybe 500 watts ?

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Intereting idea.
but here is a real life or more twards real life power example. one horsepower = 746 watts. Horsepower in its simpler definition is thats the contionuous power a good sized healthy horse can produce. Scale that to good healthy human and you get 1/10 that or about 75 watts continouous. Remember thats continuous rate not peak rate! For a short burst a big healthy athlete can top 1500 watts on one of those generator bikes. I have seen a college football player do it! but for only a few seconds. I could do around 1200 watts at the time but again short burst. One person did 200 watts for about five minutes, A cyclist and great cardio health too.

A person walking without effort is real low, under 10 watts. The only time most people even get close to the 75 watt output is taking the stairs. And how many do that by choice!
Convert Calories to watts. 1 calorie is 1.16 watt hours. So a 2000 calorie a day diet means the average person runs on 2320 watt hours of power. Factor in the estimated calorie drain of just being alive is around half of that or more. You have less than 1 kw of mechanical energy to put to work per day.
So how many people does it take to equal what your average house uses? mine is around 1200 kwh a month. 1200/30/24 = 1.6666 kw continuous load. hmm, I would need about 23 very healthy slaves to keep my house going. give them 8 hour shifts and I would need 69 plus support to feed and keep up everything, now I am up around 80 plus!
Convert that to lazy free will people and its probibly ten times that! hmm... hmm... hmm!!! 800 people to run my house! But now who is running their houses while they run mine?

But seriously people power is just not cost effective. There is a reason slaves got replaced by machines as the world industrialized.

Sorry if I just rained all over someones idea.

 

You haven't rained on anyone's Big Plans. The overunity people will take your calculations, move the decimal point three places to the right and say you proved their case.

 

ah... Just like the global warming enviro nuts move the .0034% estimated green house increase over to say 34% !!
When I did my final report for my enviro geology class when I went back to college several years ago I questioned the data collection and analysis methods used. The short story is most of the data collection methods have a 30 to 99% margine of error! And they have to publish that error!
Check out the EPA funded study reports. Most college libraries have them. Thats where I got all my info for may final report. Full access public info, if you go to look for it! I could probibly find it on the internet to but I trust hard paper from proven sources rather than possible fake website info.
hmm... makes a person wonder where they do get the numbers from you hear about on the news all the time. They sure are not from the EPA research!
By the way I got a A+ and a couple professors who said if that info I had in my final research project got out to the public some enviro nut might try to bump me off!
I told them that as long as his aim with the gun is as acurate as his math I am safe, but the guy standing behind him had better watch his head!

 

Oh, I think you're plenty safe. From gunshots, anyway. Might have to get a ridicule-proof vest.

 

True.
But the first poke did get was from the man that eventialy gave me the A+!
I showed him the actual books and how I found the data and how that data was noted with piles of * pointing to the collection method error variations and formulas that proved or supported those variations.
I pulled one more back from the enviro nut dark side! He probibly has done the same to others by now too!
And by the way I am very enviromentaly consious! I recycle what I can and try to reduce my mess and gross waist of energy and resources when I can but I am not pushing it on others.

 

Respected sir....
I am studying 8th sem B E in UBDT COLLEGE OF ENGEENERING DAVANGERE, (karnataka)
Please send some information about Electctricity generate from speed braker.

 

In this situation you will not be generating much electricity. First off air is not a good medium to transfer energy. second a single human standing, or walking on a pad will only weigh an average of 190 lbs or so. now if you transfer that to pressure pads all you gain is his gravitational force, or maybe a tad more, with each step, only 1/2 his weight.

The distance the pad could travel is very limited so even if he could generate more force, if you had a large travel in the pad, walking across your device would be uncomfortable at best, hazardous at worst!

You are talking a very low PSI of air you could possibly generate, and therefore a very low deltaT. It would take an IMMENSE croud of people constantly walking across such a device to get anything even slightly useful. and the complications of check valves, etc would make the build immense in cost.

 

Well said. Human power is a very limited field, being excellent for some bicycle powered stuff for emerging countries and some other little gadgets like emergency lights etc. But ultimately the small amount of energy comes from expensive food we ate...

Why not bypass the middle man and just burn the massive amount of unused food (ie garbage) that us lazy people in the western world generate every day? Turn that into energy? Considering we waste almost as much food as we actually eat anyway.

 

That's all in the pipeline, our government are investing in energy to waste but they should go much further.

In my view virtually no rubbish should be going to landfill, all waste that can't be recycled should be burnt to generate electricity. The fumes can be filtered to remove nearly all the nasty chemicals leaving only CO2 and water vapour.

The climate change squad can STFU & GTFO:

1. A good percentage of the waste is carbon neutral (it comes from plants).
2. Emissions from landfill will be virtually eliminated, even more so if existing landfill sites are excavated and the waste burn/recycled.
3. It will displace emissions from fossil fuels.

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Please ask on the open forum if you have a question and I'll be happy to help, if I know the answer.

 

Someone needs to develop a "down" escalator that runs off gravity. And then use the electricity from that to run the "up" escalator.

I think I'm starting to get this urban micro power thing.

 

A "down" escalator is already a closed loop system. For every step going down, there is another step inside on an internal return path.

The weight of the passenger is almost insignificant.

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