FRENCH TEAM

Lycée H. Poincaré

NANCY

Chain Reaction

10 minutes

to understand

Chain Reaction

Travel independently

in space, an utopia ?

Chain Reaction

Summary

• Hydratation

• Energy

Equipment and protocol

Still assembly

heat source

distillation flask

distillation head

thermometer

water cooler

receiving flask for the

distillate

At the begining :

Twenty minutes later :

Ions’ research

1 ml of urea

silver nitrate

distillate

silver nitrate

chloride ions : positive testchloride ions : positive test

@louisvotier #chainreactiontv Why have you made these tests?

barium chloride

distillate urea

sulfate ions : negative test

urea

potassium oxalate

distillate

calcium ions : negative test

pH test :

pH test - in the distillate (to the left)

- in the urea (to the rigth)

Result for the distillate : pH=7 Result for urea : pH=9

The directed freezing :

=

drinkable part

unsafe part

10 minutes

to understand

Chain Reaction

A photovoltaic cell :

Silicon + phosphorus

electron excess

Silicon + boron

electron deficit

Jonction

Test with our photovoltaic cell

Comment produit-on de l’électricité dans l’espace actuellement ?• Mesure de l’électricité produite avec notre cellule photovoltaïque

Production of electricity :

Interpretations

Energy produced by the light : 30W

Energy produced : 0,30 W

Efficiency : 1%

99% of energy is lost.

-> Most performant cells can convert 20% of the energy.

@Clem54180 #Chainreactiontv Is there another way to produce electricity in space ?

How to convert mecanical energy in electrical energy ?

How to convert mecanical energy in electrical energy ?

Interpretations

Energy produced by the engine : 5W

Energy produced by the dynamo : 3W

Efficiency : 60%

-> Only 40% of the energy is lost.

Best alternators can convert 95% of the energy.

How to produce electricity by riding a bike ?

Lamp of 25 W Laptop of 90W

Conclusion

Infinity energy

- Requires light- Low quantity

- Energy all the time- A lot of energy

Requires astronauts’ energy

10 minutes

to understand

Chain Reaction