Multifunctional Bottle for Campers and Hikers
Glenbrook South High School
Joshua Goldshteyn/ @JGoldshteyn / Blogger Page/ - Project Manager
Mykyta Solonko / @m_solonko
We are going to make a multifunctional water bottle. The user will be able to adjust the temperature with an attached potentiometer and turn on a fan to cool themselves, and possibly the drink. This creation will be especially useful on trips away from home when you really need to cool your drink. Furthermore, the water bottle will be very heavily insulated, to keep warm drinks warm, and cool drinks cool. With 4 AA batteries, you will be able to adjust the temperature of the drink to your liking. Peltier plates may be used as a function of the bottle, to heat or cool the bottle, person, or perhaps to generate a small amount of electricity. The bottle will be made out of stainless steel. We will have to make sure it’s safe to handle since the metal can get heated. The fan will be spun by a DC motor. We will probably 3D print the fan blades. A push button will close the circuit and allow the DC motor to rotate, therefore spinning the fan blades. Since not every camper has batteries with them, we are might make it solar powered or at least partially. The bottle will also be useful to have in your car in an emergency kit or just bring it with you to work. A thermal sleeve will keep the user from getting a burn, if there is a hot liquid. The potentiometer will vary the amount of current reaching the fans, therefore allowing us to change the temperature of the drink.
Stem Learning Community
Hikers, Campers, Car drivers (for emergency kit in car) ages 10+
Joshua Goldshteyn, Mykyta Solonko
Many hikers and campers have trouble keeping their water and other liquids warm or cold while being on their trips. The drinks that need to be cold get warmer and your tea loses some of its heat. This causes certain problems and annoyances to fans of hiking and traveling.
Design, test, and produce a water bottle that can be heated or cooled using 4+ AA batteries.
Science: Transfer of heat/dissipated energy. Learning about electricity and the way it travels.
Technology: Using DC motor, potentiometer, requires building of a semi-complex circuit in order to make the water bottle function correctly and in a safe manner. We will be using 3D printer to print the fan, requiring us to 3D model it.
Engineering: The construction of bottle, possible usage of autodesk inventor for a more detailed prototype. Using 3D modeling to model the fan blades for printing.
Mathematics: Calculating voltage, temperature, and budget totals. Also, length of usage time and accurate methods of charging the batteries.
Sketches/3D Model Renders
3d Render of first prototype Concept Sketch One
Through our research, we have been able to more or less calculate the required voltages for the peltier plates to work, and for the 1.5 volt motor and fan combination to run correctly. It is found that peltier plates have a certain internal resistance value, and that many calculations can be done around it. The maximum voltage should never exceed 12 volts, as that may lead to both burning and frostbite conditions on the peltier plate, along with the possibility of damaging or even breaking the fan. Certain voltages must be used for the peltier plate and fan for the best cooling ability. Water itself is not very easy to heat or cool, especially compared to air, and so we must use caution when attempting to create a temperature differential and a cooling fan that can create a significant impact on the temperature of the water.
Youtube Video Air Conditioning Cooler
Peltier Plate that we will be using
List of Tools and Equipment
The overall cost of our project totals at $85.43. We are requesting $50.41 from STEM, and we already have the items the price of which will not be included in the $50 grant of the STEM Learning Community. All of our items can be bought from Amazon and one of our items has already been bought from Jewel Osco. The broken down budget can be found at this link.
The following are safety concerns while constructing our project:
Peltier (thermoelectric) mini Air Conditioner! (n.d.). Retrieved February 9, 2016, from
TEC1-12706 Data Sheet. (n.d.). Hebei I.T. (Shanghai) Co., Ltd.Retrieved February 9, 2016, from