Chevetogne
1st Day
For
this project we parted from our initial device and improved it by
adding a reflecting surface behind it. This was to potentialize the
sunrays that got to our device and further improve the evaporating
capacities. We hanged the experiment on a place where it could be
reached by sunlight and left it there for a couple hours. After this
we decided to check the temperature inside and outside the bottle in
order to have a reference of work.
|
Ambient
temperature 15°C - Time: 12:15
|
|
|
Laser
thermometer
|
Temperature
(°C)
|
|
Exterior
surface |
15 |
|
Interior
surface |
27 |
|
Conduction
thermometer
|
|
|
Exterior
surface |
23 |
|
Interior
surface |
29 |
*The
measurements taken by the laser are probably wrong because of the
transparency of the measured object. This is why we can find a
difference between the two methods.
From
this measurements we can conclude that by creating a closed
environment and adding the reflective surface the temperature inside
the bottle increases by almost 10° compared with its surroundings.
This is the reason behind the evaporation and later condensation of
water in the walls of the device.
2nd Day
On
the second day when we checked on the bottle it had recuperated some
water but the cardboard inside was deteriorated. This made us think
that cardboard is not the best material for constantly absorbing
water for it gets damaged very quickly, and we would have to change
it often. Because of this we decided to make improvements on the
component and change the material for fabric. To make this we cut
black tights and spread them between two wood sticks attached to the
interior bottle.
3rd Day
4th Day
