Into The Wild Project (Physics Part)
For this project we had journals where we did our physics work. We started off by creating our soda can stoves. We did sketches,did calculations, and watched videos to create these. Once we did those we started to create our equipment. I created a cooler for our equipment. We had to use different materials such as foil, styrofoam insulation foam, and other things. After that we had different spec sheets and technical pieces to write our print ad copies that talked about our coolers. They had to sound like they were trying to be sold. Then we packed up and went to our trip. We tried out stoves and equipment to make food. By the end we had a lot of fun.
FINAL DRAFT TECHNICAL PIECE (SODA CAN STOVE)
How is the soda can stove made? -In this project we made soda can stoves that we are going to use once we go in to the wild. In order to create this stove, we had to go through multiple steps to have an efficient and long lasting stove. The different materials we used were soda cans, scissors, box cutters, foil tape, a ruler, a thumb tack, and a marker or pen to make marks. First we had to cut the bottom the of the soda can. Our box cutters had wood blocks on the bottom maybe 2-2 ½ inches high. You place the cutter in the can and rotate the can till the bottom pops off. You then do the same for the top. Once you take off the top, you have to cut out the part you drink from or where the can opener is. Once you do that you need to get the thumb tack and make jets or holes on the top part half an inch away from each other, do this all the way around the can. Next, you get the middle part and cut it so it becomes a strip. After this you get your ruler and marker and measure 4cm or 3.5 cm from the long side of the strip on both sides. Once you do this you should have a straight line drawn across from both the top and bottom of the strip. Next, you cut where the line is and you should have a straight edge. From there you cut two slits in the strip so they should connect to make hoop or ring. Then you make three square holes on the hoop. Attach the hoop in to the top part of the can where the circular part is, it should be able to fit depending on where you positioned your slits. If your bottom part of the can has a jagged edge, trim the bottom to make it straight and pinch the bottom and top part of the can together. Take the strips of foil tape and tape over the crease where both can parts connect. Make sure to get the bottom of the can as well so fire won’t come out the bottom. Now all you have to do is put fuel and light it.
How does the soda can stove work? -The soda can stove works through vapor pressure. Vapor pressure is the pressure of a vapor in an equilibrium within a closed or condensed space. For instance, the stove has two fuel chambers. Both an inner and outer fuel chamber. You start off having fuel in the inner chamber, once you light it the fuel increases vapor pressure and starts to boil. The molecules in the stove cause evaporation as they return and escape to the fuel. The higher the temperature is the more kinetic energy you have. Obviously the lower the temperature the less you have. The higher the kinetic energy, the vapor pressure corresponds more. Add the vapor pressure and the atmospheric pressure together, you then have a boiling point. As more of the fuel evaporates through boiling, you have more fire causing the stove to heat up. The more the inner chamber heats up, it spreads heat through out the whole stove causing the outer chamber to build up vapor pressure. Once it has a higher corresponding vapor pressure the fuel will burn through the jets and continue to heat the stove until the fuel is gone.
How does a pot of boiling water relate to our soda can stoves? - For the stove to heat up, heat has to be transferred. For instance, the stove will be boiling a pot of water.Heat is transferred through conduction then convection. Conduction is the transfer of heat through direct contact of rapidly moving atoms. Through conduction heat travels from one end to another end. When this heat is traveling atoms vibrate all around the whole pot. As the temperature rises these atoms move even faster and faster all around the pot. The pot heats up all around and spreads this heat. While convection occurs once conduction occurs. Convection is the transfer of heat through physical movement of the medium it’s self. Once the pot is heated the water at the bottom which is closest to the heat gets hot. When matter closes to the heat source gets hot, it becomes less dense while matter farthest from the heart source gets cold. it becomes more dense falling to the bottom to heat up, almost as a cycle. The hot water becomes less dense floating up pushing the cool water down to heat. This happens over and over to get the water hot. The kinetic energy in the pot makes the atoms vibrate quickly and heat up the water.
How does the soda can stove work? -The soda can stove works through vapor pressure. Vapor pressure is the pressure of a vapor in an equilibrium within a closed or condensed space. For instance, the stove has two fuel chambers. Both an inner and outer fuel chamber. You start off having fuel in the inner chamber, once you light it the fuel increases vapor pressure and starts to boil. The molecules in the stove cause evaporation as they return and escape to the fuel. The higher the temperature is the more kinetic energy you have. Obviously the lower the temperature the less you have. The higher the kinetic energy, the vapor pressure corresponds more. Add the vapor pressure and the atmospheric pressure together, you then have a boiling point. As more of the fuel evaporates through boiling, you have more fire causing the stove to heat up. The more the inner chamber heats up, it spreads heat through out the whole stove causing the outer chamber to build up vapor pressure. Once it has a higher corresponding vapor pressure the fuel will burn through the jets and continue to heat the stove until the fuel is gone.
How does a pot of boiling water relate to our soda can stoves? - For the stove to heat up, heat has to be transferred. For instance, the stove will be boiling a pot of water.Heat is transferred through conduction then convection. Conduction is the transfer of heat through direct contact of rapidly moving atoms. Through conduction heat travels from one end to another end. When this heat is traveling atoms vibrate all around the whole pot. As the temperature rises these atoms move even faster and faster all around the pot. The pot heats up all around and spreads this heat. While convection occurs once conduction occurs. Convection is the transfer of heat through physical movement of the medium it’s self. Once the pot is heated the water at the bottom which is closest to the heat gets hot. When matter closes to the heat source gets hot, it becomes less dense while matter farthest from the heart source gets cold. it becomes more dense falling to the bottom to heat up, almost as a cycle. The hot water becomes less dense floating up pushing the cool water down to heat. This happens over and over to get the water hot. The kinetic energy in the pot makes the atoms vibrate quickly and heat up the water.
Print Ad Copy
With this cooler, heat won’t even be a problem. With it’s patented body, all the materials create a well working and sufficient cooler. Using a cardboard box as a base, foil as the outside layer, and styrofoam and insulation foam to keep it nice and fresh. Just start off by adding walls of styrofoam and and insulation foam on the inside while lining foil on the outside for your cooler to meet guaranteed satisfaction.
Obviously you want your cooler to work, who wants a cooler that just sucks? Our coolers are carefully tested through a series of different equations including rate of heat transfer. The rate of heat transfer helps figure out what temperature you’re cooler can stand and how much heat it can take. There are different materials that we use to make sure you’re food won’t go bad. Each material has a thermal conductivity coefficient that states how fast heat can be transferred. Certain materials are conductors allowing more heat to come in and insulators slow down heat transfer. Our coolers are made sure to be created with materials that have insulator properties for maximum satisfaction. We promise your coolers will work because of the vigorous work we do to create your cooler.
Obviously you want your cooler to work, who wants a cooler that just sucks? Our coolers are carefully tested through a series of different equations including rate of heat transfer. The rate of heat transfer helps figure out what temperature you’re cooler can stand and how much heat it can take. There are different materials that we use to make sure you’re food won’t go bad. Each material has a thermal conductivity coefficient that states how fast heat can be transferred. Certain materials are conductors allowing more heat to come in and insulators slow down heat transfer. Our coolers are made sure to be created with materials that have insulator properties for maximum satisfaction. We promise your coolers will work because of the vigorous work we do to create your cooler.
Reflection Of Efforts
In this project I feel like I put a lot effort into all my work. It took me a long time to create my cooler and to make it really efficient. I also worked very well with my other group members. I think we all worked very well together and made sure all our equipment was good so that we wouldn't feel like we didn't work well. When we needed to get things done we would help each other out give each other supplies or equipment to use. We also put our own money into the equipment to make sure it worked well. We worked very well together.