A device that produces beneficial friction and heat can be engineered by ensuring that frictional factors that result in deformation and wear are reduced to a great extent.
Friction is the force that resists the relative motion of two bodies that are in contact with each other. The rubbing of an object against another produces heat. Heat is a form of energy known as thermal energy. Every form of friction tends to produce heat as it causes an increase in the movement of molecules on the contact surfaces thus converting kinetic energy into thermal energy (heat).
The resultant frictional forces including the thermal energy produced can be harnessed by engineered devices into products that are beneficial. Examples of such devices that have been engineered for this purpose include:
Therefore, work done due to frictional forces and heat produced therein can be adapted to devices efficiently if detrimental effects due to these forms of energy are reduced acceptable levels.
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