The Into The Wild was a project where we had to make our very own soda can stove and camping equipment that works. We were all put into groups of 4 and we had to make a soda can stove and a peice of camping equipment, I was making the tent for my group. I looked on some websites to find a design for the tent and it took me a while to choose the final design i decided to do. I decided to make my tent out of PVC pipes and covering it with tarps and with the PVC pipes the tent held up very well during our camping trip in Anza-Borrego. The experience of the camping trip was amazing! The trip was really fun and it was good getting to bond with people I didn't talk to as much.
Tech Piece
I made my soda can stove by cutting the top half and the bottom each at 35 millimeters. then using the excess aluminum of the middle of the can to create the inner chamber. I cut up the middle strip the same length of the top and the bottom which was 35 millimeters. I cut up 4 little tabs at the bottom of the inner chamber and folded them so that when I insert it into the soda can stove it would act as a place for the alcohol to go through so that when it burns it would be able to make it through the jet holes. The materials i used for my soda can stove were made of the following items, a regular soda can, and thermal tape. I used a ruler, scissors, and a X-acto knife to cut the soda can to create the needed parts. I really liked the design process it was simple to follow and was very easy to do. Also because my soda can stove actually worked i was very impressed with what i had done within just a few days. A soda can stove has both an inner chamber and the soda can itself. The inner chamber has these little holes in them at the bottom. When the soda can stove is filled with the alcohol and is lit this heats up both the stove and the fuel causing the fuel to increase its vapor pressure and boil. As more fuel vaporizes, more is burned and the stove heats up even more. As the vapor pressure increases the alcohol that was moved into the outer part of the inner chamber, the pressure builds up and shoots the pressurized fuel out of the jets. These jets ignite from the center flame and heat from the burning jets continues to heat up the stove, continuing the cycle until extinguished or all fuel is consumed. Vaporized fuel will continue to exit the center chamber ignited by the flames around it. How is heat transferred from a stove through a pot to boil water? This process is formed through convection, convention is basically the transfer of heat between a physical movement and itself. so how this applies to when you boil water is when you heat up a pot filled with water all of the atoms are moving at a regular speed and as it gets hotter the hot waster rises and the cold water goes towards the bottom of the pot because the cold water is more dense than the hot water so the hot goes to the top and the cold goes to the bottom and this circular motion process keeps repeating itself until at the water is at the same boiling temperature or when it reached its thermal equilibrium. when the water is all boiled the atoms in the water molecules are bouncing off of each other and the pot itself because it is so hot and there is not enough room for the molecules to move at a normal speed. All of this talk about atoms is also a good point to think about conduction. Conduction is the transfer of heat by direct contact of a fast atom moving from one medium to another. An example of conduction might be if your are drinking a hot drink and you have a metal spoon in it the spoon will eventually get hot because of conduction. the atoms in the boiling drink are slowly heating up the metal spoon because they are bouncing off of each other and then eventually hitting the spoon and then as they hit the spoon, it travels up the entire spoon handle and makes the whole soon hotter because of the metal spoon. Metal is a really good conductor, along with plastic wood and clay. Things that are not good conductors are called insulators, some examples of insulators are glass, styrofoam, and rubber. |
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