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Solar powered refrigerator

What is Solar Powered Referigerators?
They are absorption refrigerators.An absorption refrigerator is a refrigerator that uses a heat source (e.g., solar, kerosene-fueled flame) to provide the energy needed to drive the cooling system. Absorption refrigerators are a popular alternative to regular compressor refrigerators where electricity is unreliable, costly, or unavailable, where noise from the compressor is problematic, or where surplus heat is available (e.g., from turbine exhausts or industrial processes).

Useful Links :

Solar Powered Refrigerator
Absorption Refrigerators 
How Refrigerator Works ?
Presentation of some refrigerators 
Principle of Absorption Cycle

How to build it ?
Cost and other details of this project
Solar Fridge re-invented by UK Student

There are four ways by which we can build these refrigerators :
  • Refrigerator which is powered by electricity produced by Solar Cells : These are the conventional refrigerator which we use in our daily life , the only difference is that it would be powered by electricity. 

  • Thermoelectric solid-state refrigerator powered by solar photovoltaic electricity : These refrigerator uses the Peltier effect to create a heat flux between the junction of two different types of materials.

  • Absorption refrigerator in which the boiler heat is generated from concentrated sunlight : In this method we use solar energy to heat water for producing steam.

  • Stirling engine refrigerator in which the compressor is mechanically driven by a Stirling engine : When we heat gas using sun light, gas would expand and push the piston forward. We can use this method to power compressor of refrigerator.Read more about Stirling Engine
Related PDF Files :
Advanced Solar-Powered Rotary Solid Adsorption Refrigerator
Thermodynamic Simulation of a solar absorption refrigeration System 
Thermodynamic design procedure for solid adsorption solar refrigerator
Adsorption refrigeration - An efficient way to make good use of waste heat and solar energy
Solar Energy Refrigeration by Liquid-Solid Adsorption Technique
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Solar Energy Project Ideas

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