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{{highlight| headline = Highlighted Engineering for Sustainable Development Page | page=How to Build a Mechanically Powered Battery Charger for LED Lighting | image=Good Results.JPG | summary=An engineering student describes how to build a battery charger that operates using a bicycle wheel. More [[appropriate technology]] projects can be found at [[Mech425 AT Project]] }}
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| '''&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Highlighted Heat exchanger'''
 
| '''&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Highlighted Heat exchanger'''
 
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| An idea of how to make your home or business more<br>energy efficient.
 
| An idea of how to make your home or business more<br>energy efficient.
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[[Engineering for sustainable development|Engineering for sustainable development]]
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Heat Exchangers
    
A heat exchanger is a device built for efficient heat transfer from one medium to another. The media may be separated by a solid wall, so that they never mix, or they may be in direct contact. They are widely used in space heating, refrigeration, air conditioning, power plants, chemical plants, petrochemical plants, petroleum refineries, natural gas processing, and sewage treatment. One common example of a heat exchanger is the radiator in a car, in which the heat source, being a hot engine-cooling fluid, water, transfers heat to air flowing through the radiator (i.e. the heat transfer medium).  
 
A heat exchanger is a device built for efficient heat transfer from one medium to another. The media may be separated by a solid wall, so that they never mix, or they may be in direct contact. They are widely used in space heating, refrigeration, air conditioning, power plants, chemical plants, petrochemical plants, petroleum refineries, natural gas processing, and sewage treatment. One common example of a heat exchanger is the radiator in a car, in which the heat source, being a hot engine-cooling fluid, water, transfers heat to air flowing through the radiator (i.e. the heat transfer medium).  
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= Education for Engineering for Sustainable Development =
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= Heat Exchanger Development =
    
*[[Engineering for Sustainable Development]] is an Appropedia page with external links to education programs and courses.  
 
*[[Engineering for Sustainable Development]] is an Appropedia page with external links to education programs and courses.  
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