The purpose of the bicycle powered refrigerator is to allow someone to take a bike trip and keep their food or drink cold. This project can be used for poor neighborhood of Africa or Asia where electricity is still a distant thing . Moreover it can be extended to more useful device with the help of windmill or flowing water . If its pedals joined with the turbine revolving using wind or water, we can use this refrigerator as a automatic machine . This project idea is for student of mechanical , electrical and physics students.
Concept :
When we pump out gases from the water box in the refrigerator by paddling a bicycle , we creates low pressure area inside the box, due to this low pressure ,water starts evaporating, and for that evaporation it needs heat from the surrounding which is our refrigerator.In that way it cools our refrigerator.
Steam is generated in the process of evaporation which later been absorbed by Zeolite as shown in video . Absorption of steam is a property of zeolite that's why we use it in this experiment.
What are Zeolites ?
Zeolites are microporous, aluminosilicate minerals commonly used as commercial adsorbents.An example mineral formula is: Na2Al2Si3O10·2H2O, the formula for natrolite.The major producers in 2010 were China, South Korea, Japan , Jordan , Turkey ,Slovakia and United States. The ready availability of zeolite-rich rock at low cost and the shortage of competing minerals and rocks are probably the most important factors for its large-scale use. You can purchase it from any mineral supplier in your city. Just google it with your city name.
Related articles :
Hazon webpage
Related PDF :
Human powered refrigerators
Related Projects :
Mechanical Projects
Solar Projects
Physics Projects
10 comments:
hey im a 4th yr mech engg. student and have decided on this as my final year project...problem is im not getting content for fabrication of the same...plz help me out... thanks in advance
@Manu......I have updated the above post with concept section for your help.
where can i get zeolite???
please help
@Sahil.. I have updated the post with "What are zeolites", that would help you to understand them more.
Hello,
Sir, I am not getting the complete idea like what will be the effect when water vapors get absorbed .
Also can you please explain me the mechanism by which the low pressure is transferred from the fridge to the zeolite chamber.
Hi I'm chetan studying in 4th year mechanical engineering n i want to do the project in renewable source of energy,if u have any ideas pls mail me to this id:chetu@live.com
hey guys has anyone else tried this project? we are trying to do something similar...so i want to know if it works..n also can i use sodium silicate beeds instead of zeolite adsorbent?
hey hi...I am very impressed with this idea and i hv making it as my 4th yr project.
But the problem is if you're using evaporator the what diameter coils have you used in and is the system is a reversible system??...as in how are you getting the water back to its chamber after pumping it and and have you done the analysis of this system??...please reply.
This is srinivas, please send me the information required to fabricate this model because I want to do this is as my final project in engineering. mail me at srinujune19@gmail.com
ph. 7416986840
Hi..
this is vivek,could you please give informations about the materials used for making the refrigerator box??
please mail me at wagonvivek@gmail.com
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