La plate-forme collaborative de bricolages scientifiques et pédagogiques

Steamboat

Note (?)
Difficulté (?)
Durée (?)3h 0 min.
Date14.05.2013
AuteurMartin
TraducteurMartin
Organismeinfo-energie
Coût (?)~12 CHF
Languefrançais deutsch english
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Building a steamboat helps to understand how it is possible to tranform heat into a mouvement.


If some water is heated in a closed container and evaporates, a pressure is created inside. This pressure is due to the increase of water volume during its transformation into steam (steam takes about 1'700 times more space than cold water !). If released, this pressure can be used to power a turbine or a piston. With this mechanical movement and a generator it is even possible to produce electricity.

 

Before the invention of the petrol engine, steam has been the main system used to power transportation (cars, trains, etc.) and machinery in general. It is with the development of steam engines that the large-scale use of non-renewable energy (coal) has begun.

 

Today, this same principle is used to generate electricity in most power plants.


05.07.2012 : gdelac
En 2012 à Lutry, des élèves de 8e année ont réalisé le bricolage du bateau à vapeur avec le soutien d'Info-Energie (Service de l'énergie du canton de Vaud).   Ils ont créé un panneau d'information pour illustrer leur bricolage lors d'une exposition organisée à l'attention des autres élèv...Lire la suite

Matériel

Outils

Réalisation


Cut a horizontal slit on both sides of the bottle with a pair of scissors (a bit above the mid ...
Cut an opening at the back of the boat using strong cutting pliers. Tis back opening mus ...
Cut out two small notches on each side of the boat.
Cut slightly the tip of the two forex rectangles to narrow them. Paste them on top of each ot ...
Pass on each side of the cigar tube 2 wires. Twist them together with pliers to enclose proper ...
Cut out a square (as shown) in a sheet of thick aluminum foil according (with two lateral notc ...
Fold the aluminum foil to form an arch. Close one end by folding and pasting the three flaps.
Cut another piece of aluminum to form a small cylinder (as shown). Paste it and cover the top ...
Attach on the bottle cap a wire with two beads in order to reduce friction against walls.

Fonctionnement

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