Energy conversion refers to the transformation of the energy from forms which are provided by
nature to forms which can be used by human beings. Energy refers to the ability to do work.
Energy can be used to perform a different task when converted like provision of light. In the past
years, many devices and systems have been invented by researchers and scientists for purpose of
energy conversion. Many energy converters use very simple methodologies. (Bell, 2006)
In the past scientists started this field of energy conversion by introducing windmills these
windmills converted kinetic energy to mechanical energy which can be used directly by humans.
It could be used to pump water from well and also where used for grinding grain to give flour.
There are some complex systems used for energy conversion, this includes systems which take
raw energy from fossil fuel and nuclear fuels to generate electrical power this involves high
technology and they can generate higher amounts of energy. These systems do need some steps
and processes where the different forms of energy undergo a series of conversion via numerous
intermediate forms. (Jahn, 2006)
The energy converters which are in use today include the conversion of the thermal energy to
form electrical energy which is of high use in daily duties. The efficiency of this kind of systems
is subjected to some fundamental and important limitations as shown by thermodynamics and