Background
This backpack consists of a Peltier cooling unit which is a proven technology widely used for temperature control in electronic devices such as personal computers and web servers. It has a heatsink where one side gets hot and other gets cool, so we can use high rpm fans and use air to transfer that energy out of the system. It is a very efficient process and needs very little energy to operate. [1]
The energy required will come from solar panels as we want it to be portable and provide cooling on-the-go. Solar panels will make it easy to use anywhere in the world. It will help users avoid charging before going out on a trip and eliminate the need to find electric ports to plug this in. The panels have to be very lightweight and efficient due to limited space on the front of the backpack. [2]
As the users might need to use cooling during the night or in unfavorable weather conditions, so we decided to include a battery as well. The battery needs to have high energy density and light weight in order to suit our needs. It should also be able to hold the charge for long times with good efficiency. [3]
We are also using thermal insulation to reduce the energy usage by minimizing the amount of heat gained from the surroundings. The cooling chamber will be insulated from all sides and maintain the cool temperature for an extended period of time even after turning it off. [4]
References
This backpack consists of a Peltier cooling unit which is a proven technology widely used for temperature control in electronic devices such as personal computers and web servers. It has a heatsink where one side gets hot and other gets cool, so we can use high rpm fans and use air to transfer that energy out of the system. It is a very efficient process and needs very little energy to operate. [1]
The energy required will come from solar panels as we want it to be portable and provide cooling on-the-go. Solar panels will make it easy to use anywhere in the world. It will help users avoid charging before going out on a trip and eliminate the need to find electric ports to plug this in. The panels have to be very lightweight and efficient due to limited space on the front of the backpack. [2]
As the users might need to use cooling during the night or in unfavorable weather conditions, so we decided to include a battery as well. The battery needs to have high energy density and light weight in order to suit our needs. It should also be able to hold the charge for long times with good efficiency. [3]
We are also using thermal insulation to reduce the energy usage by minimizing the amount of heat gained from the surroundings. The cooling chamber will be insulated from all sides and maintain the cool temperature for an extended period of time even after turning it off. [4]
References
- "The Heatsink Guide - Peltier Cooler Information." The Heatsink Guide - Peltier Cooler Information. The Heatsink Guide, n.d. Web. 02 Apr. 2016.
- "Solar Info: The Down Low on Everything Up High." BatteryStuff Articles. N.p., n.d. Web. 02 Apr. 2016.
- Keeping, Steven. "A Designer's Guide to Lithium Battery Charging." A Designers Guide to Lithium Battery Charging. Digi-Key, 25 Nov. 2012. Web. 01 Apr. 2016.
- "Insulation Materials." Insulation Materials. US Department of Energy, n.d. Web. 02 Apr. 2016.
There needs to be more background research to support the design. How did you decide what technological elements go into this backpack? What is the science behind these elements? There should be research sources as bibliographic references to support the research. It all needs to be on the blog.
ReplyDeleteYou haven't addressed Dr. Ellis's comment on April 21st. Please do so asap.
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