Pedal Powered Refrigerator
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 6
Abstract
The refrigerator works by creating a vacuum in a system of 2 chambers to drive a thermodynamic reaction (boiling of methanol) at room temperature. The lowering in vapor pressure of the methanol drives the methanol to boil. In order to do this, the methanol must capture heat from a system (the inside of the refrigerator). After only about 10 min of pedaling, the valve to the vacuum pump can be shut off, and the zeolite container line opened. Zeolite are common absorbers based on aluminum silicates and will swell up to 30% its mass with water. The zeolite then absorbs the vapor produced by the boiling of the methanol, and in order for the liquid methanol to remain in equilibrium with the vapor phase; it must continue to boil (for up to a day). In general, one can achieve constant temperatures of 0-6 Celsius for 1 day with only 10min of pedaling. Now this is a real way to cool for cheap. Even ice cubes can be made and one advantage of this system is that the hotter it is outside, the more cold you can generate.
Authors and Affiliations
Hardik R. Mehta
Keywords
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