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Version du 16 novembre 2017 à 10:54
The people pedal powered computer charger is a device that harvests human energy to charge a computer. The energy input comes from an ordinary bicycle in a stand that drives a generator. The energy output is the charging voltage of the computer.
Difficulté
Moyen
Durée
2 jour(s)
Catégories
Énergie
Coût
200 EUR (€)
Sommaire
- 1 Introduction
- 2 Étape 1 - Bicycle : human energy to mechanical energy
- 3 Étape 2 - Bicycle stand : slow to fast-rotation mechanical energy
- 4 Étape 3 - Generator : mechanical to electric energy
- 5 Étape 4 - Conversion : messy DC power to flat DC voltage
- 6 Étape 5 - Charging : adapting to the computer voltage
- 7 Commentaires
Introduction
The project Vélo M2 plays with PPP (people pedal power) applications. In Brussels we're having PPP open-air cinéma projections, PPP mobile fablab workshops and PPP music scenes and DJ sets. [www.velom2.be www.velom2.be]
This projects takes the PPP to a smaller scale, where we will be charging a computer. In order to demonstrate the accessibility, we're construction the device in a remote town in Sweden, Torsby.
To find out more about People Pedal Power, visit our site https://ciklic.wordpress.com/2017/08/05/renewable-energy-what-can-you-expect/
Matériaux
- bicycle stand
- wood
- DC generator
- power display
- DC/DC converter
- cables, connectors and plugs
Outils
- woord or metalworking tools
- multimeter
Étape 1 - Bicycle : human energy to mechanical energy
The fist etape is the conversion of the human energy to slow-rotating mechanical energy. We are using an ordinary bicycle to harvest the energy.
Think about this :
- your bike should have low-profile tires
When the profile is too important, as on the picture, there will be a large energy loss due to vibrations. You will also have more noise when pedaling.
- the fixation of the axis should be not of the fast-release type
The fast-release-type with flat end is often not compatible with the bike stands. You can easily change the axle with another (second hand) axle.
Étape 2 - Bicycle stand : slow to fast-rotation mechanical energy
Étape 3 - Generator : mechanical to electric energy
Étape 4 - Conversion : messy DC power to flat DC voltage
Étape 5 - Charging : adapting to the computer voltage
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