Pedal Power Project

Solar energy, wind turbines whatever it is then here is your place to talk about it.
Post Reply
ToolUsingAnimal
margo - newbie
margo - newbie
Posts: 8
Joined: Sun Apr 20, 2008 1:14 pm
Location: Wiltshire

Pedal Power Project

Post: # 97517Post ToolUsingAnimal
Sun Apr 20, 2008 1:22 pm

Hey druids,

So I'll be coming back to Bristol soon, do a bit of work with Kebele and the Permacultists. But I want to build a bike generator, and document it for posterity. The idea is to video it all, so as to make a DVD of useful skills...

Anyone interested?
Be good, take care, have fun

@)

User avatar
Andy Hamilton
Site Admin
Site Admin
Posts: 6631
Joined: Tue Oct 26, 2004 11:06 pm
Location: Bristol
Contact:

Post: # 97518Post Andy Hamilton
Sun Apr 20, 2008 1:26 pm

Yep I would be up for that if I have time. Give me a shout if you want me to join.
First we sow the seeds, nature grows the seeds then we eat the seeds. Neil Pye
My best selling Homebrew book Booze for Free
and...... Twitter
The Other Andy Hamilton - Drinks & Foraging

ToolUsingAnimal
margo - newbie
margo - newbie
Posts: 8
Joined: Sun Apr 20, 2008 1:14 pm
Location: Wiltshire

Post: # 97574Post ToolUsingAnimal
Sun Apr 20, 2008 2:58 pm

Ace. Cheers boss. :bom:
Be good, take care, have fun

@)

Ellendra
A selfsufficientish Regular
A selfsufficientish Regular
Posts: 765
Joined: Sat Nov 03, 2007 2:15 am
Location: Wisconsin, USA

Post: # 97676Post Ellendra
Mon Apr 21, 2008 3:39 am

I've been wanting to build a bike generator for a while. I'd seen demonstration models, but they always had such low resistance they couldn't possibly be capturing the amount of energy possible. I'd love to see what you come up with.

grahoom
Barbara Good
Barbara Good
Posts: 149
Joined: Mon May 29, 2006 2:00 pm
Location: west sussex

Post: # 97704Post grahoom
Mon Apr 21, 2008 9:14 am

I've been looking into pedal powered stuff for a while, but it seems that for a hell of a lot of work not much energy is produced - which I am sure isn't strictly true, so would be interested in trying to make one - just to see it working myself (personally I have limited space for such tinkerings).
|You can't feel lonely with nature as your companion| millican dalton

ina
A selfsufficientish Regular
A selfsufficientish Regular
Posts: 7995
Joined: Sun May 22, 2005 9:16 pm
Location: Kincardineshire, Scotland

Post: # 97706Post ina
Mon Apr 21, 2008 9:18 am

This idea has been on SSIsh a few times - I remember I started a thread years ago - am still hoping to have a pedal power computer one of these days! :mrgreen:
Ina
I'm a size 10, really; I wear a 20 for comfort. (Gina Yashere)

DominicJ
Barbara Good
Barbara Good
Posts: 155
Joined: Thu Jun 05, 2008 1:21 pm
Location: North West UK

Post: # 107765Post DominicJ
Fri Jun 06, 2008 3:46 pm

1 horse power is about 750 watts.
http://en.wikipedia.org/wiki/Horse_powe ... sepower.22


A person can do 0.1hp for sustained periods, so 75 watts, not exactly bad, but not great either
I'm not a hippie, I'm a realist.
I think everyones English

User avatar
Wombat
Site Admin
Site Admin
Posts: 5918
Joined: Tue Nov 23, 2004 8:23 pm
Location: Sydney Australia
Contact:

Post: # 107874Post Wombat
Sat Jun 07, 2008 11:44 am

Yup, I tried to commit suicide on one years ago........
Garden shed technology rules! - Muddypause


Our website on living more sustainably in the suburbs! - http://www.underthechokotree.com/

John Headstrong

Post: # 107889Post John Headstrong
Sat Jun 07, 2008 1:01 pm

DominicJ wrote:1 horse power is about 750 watts.
http://en.wikipedia.org/wiki/Horse_powe ... sepower.22


A person can do 0.1hp for sustained periods, so 75 watts, not exactly bad, but not great either
quite right there DominicJ
One of the things you should be aware of before you start is the energy output of an average person. Although some athletes can produce amazing power outputs for short periods, the maximum continuous output you can get from an average person is an eighth of a horsepower or a bit less than 100 Watts. (Makes you think about making a horse powered generator doesn't it). Not only that, 100 Watts of mechanical energy translates to maybe 60 W or so of electrical by the time it's been converted.
taken from http://www.c-realevents.demon.co.uk/alt ... pedgen.htm

also
http://www.pedalpa.org.uk/
has some info

The Prehistorian
Jerry - Bit higher than newbie
Jerry - Bit higher than newbie
Posts: 36
Joined: Wed Jun 11, 2008 6:44 pm

Post: # 108622Post The Prehistorian
Wed Jun 11, 2008 7:08 pm

average person is an eighth of a horsepower or a bit less than 100 Watts.
I think that might be under reading a little.....even back when I was suffering from PVFS I could put out around 200W for sustained periods. OK, I do ride a bike a lot but no more than would be possible for the average person - I don't train or race etc just pootle around. I think that initially power output for the average person would be low but after a while they'd see it ramp up a fair bit, it's all about geting the muscles used tot he bike.

Tom Thumb
margo - newbie
margo - newbie
Posts: 21
Joined: Sun Jun 15, 2008 3:45 pm
Location: Coventry
Contact:

Post: # 109686Post Tom Thumb
Sun Jun 15, 2008 4:41 pm

ahh this is something I wanted to ask about.

I've been thinking of hooking up and old bike to some sort of dynamo, which goes through some sort of charge regulator and charges a 12 volt battery.

I want to do it as cheaply as possible, so probably with some sort of recondition motor as the dynamo. would this work? and can anyone recommend from what type of machine or appliance I met get something suitable?

Big Al
A selfsufficientish Regular
A selfsufficientish Regular
Posts: 1640
Joined: Mon Apr 28, 2008 10:28 am
Contact:

Re:

Post: # 115078Post Big Al
Tue Jul 15, 2008 6:25 pm

Tom Thumb wrote:ahh this is something I wanted to ask about.

I've been thinking of hooking up and old bike to some sort of dynamo, which goes through some sort of charge regulator and charges a 12 volt battery.

I want to do it as cheaply as possible, so probably with some sort of recondition motor as the dynamo. would this work? and can anyone recommend from what type of machine or appliance I met get something suitable?
Could you not rig up some type of svonious rotor but instead of having the "fan" bit to spin round over the coils you have the metal washers stuck to the to the back wheel and have the coils static ??
Member of the Ishloss weight group 2013. starting weight 296.00 pounds on 01.01.2013. Now minus 0.20 pounds total THIS WEEK - 0.20 pounds Now over 320 pounds and couldn't give a fig...
Secret Asparagus binger

Post Reply