Translations:Four solaire (cuiseur type boîte)/11/en : Différence entre versions

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The solar oven is a box well hermitically isolated with a transparent cover and reflective faces inside: the sun ray enter by the glass et reflect on the borders of the box to hit the dark surface of the pot. The energy of those raws is so transformed into heat, heat that is stuck in the box.  
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The solar oven is a box hermetically isolated with a transparent cover and reflective faces inside: the sun rays enter by the glass and reflect on the borders of the box to hit the dark surface of the pot. The energy of those rays is so transformed into heat, heat that is stuck in the box.
To increase the received solar flux, two ears covered by aluminium are fixed on each side of the box. This permits to reflect the light on the glass which should be as perpendicular as possible to the sun raws. With the metropolitan France's latitudes, the right tilt of sun regarding to the horizon is around 60° in summer and 30° in winter. Thereby, the optimal tilt of the glass is 30° in winter and 60° in summer.  
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To increase the received solar flux, two ears covered by aluminium are fixed on each side of the box. This permits to reflect the light on the glass which should be as perpendicular as possible to the sun rays. With the metropolitan France's latitudes, the right tilt of sun regarding to the horizon is around 60° in summer and 30° in winter. Thereby, the optimal tilt of the glass is 30° in winter and 60° in summer.  
The solar oven only runs thanks to the sun raws: clouds, fog and dust reduce the the radiation and thereby, therefore increase the cooking time.
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The solar oven only runs thanks to the sun rays: clouds, fog and dust reduce the the radiation and thereby, therefore increase the cooking time.

Version actuelle datée du 10 juin 2018 à 19:24

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Définition du message (Four solaire (cuiseur type boîte))
Le four solaire est une boite bien isolée thermiquement, au couvercle transparent et aux faces intérieurs réfléchissantes : les rayons du soleil entrent par la vitre et se réfléchissent sur les bords de la boîte jusqu’à heurter la surface sombre de la marmite. L’énergie de ces rayons est alors transformée en chaleur, chaleur qui est emprisonnée dans la boîte.
Pour augmenter le flux solaire capté, deux oreillettes recouvertes d’aluminium sont fixées de part et d’autre de la boîte afin de réfléchir la lumière sur la vitre qui doit être la plus perpendiculaire possible aux rayons du soleil. Sous les latitudes de la France métropolitaine, l’inclinaison du soleil par rapport à l’horizon est d’environ 60 ° l’été et de 30° l’hiver. Ainsi l’inclinaison optimale de la vitre en été sera de 30 ° et en hiver de 60°. 
Le four solaire ne fonctionne qu'avec le rayonnement direct du soleil : nuages, brumes, poussière réduisent donc le rayonnement et prolongent le temps de cuisson.
TraductionThe solar oven is a box hermetically isolated with a transparent cover and reflective faces inside: the sun rays enter by the glass and reflect on the borders of the box to hit the dark surface of the pot. The energy of those rays is so transformed into heat, heat that is stuck in the box.
To increase the received solar flux, two ears covered by aluminium are fixed on each side of the box. This permits to reflect the light on the glass which should be as perpendicular as possible to the sun rays. With the metropolitan France's latitudes, the right tilt of sun regarding to the horizon is around 60° in summer and 30° in winter. Thereby, the optimal tilt of the glass is 30° in winter and 60° in summer. 
The solar oven only runs thanks to the sun rays: clouds, fog and dust reduce the the radiation and thereby, therefore increase the cooking time.

The solar oven is a box hermetically isolated with a transparent cover and reflective faces inside: the sun rays enter by the glass and reflect on the borders of the box to hit the dark surface of the pot. The energy of those rays is so transformed into heat, heat that is stuck in the box. To increase the received solar flux, two ears covered by aluminium are fixed on each side of the box. This permits to reflect the light on the glass which should be as perpendicular as possible to the sun rays. With the metropolitan France's latitudes, the right tilt of sun regarding to the horizon is around 60° in summer and 30° in winter. Thereby, the optimal tilt of the glass is 30° in winter and 60° in summer. The solar oven only runs thanks to the sun rays: clouds, fog and dust reduce the the radiation and thereby, therefore increase the cooking time.