Energy Transfer in electrical circuits Research Paper

Energy Transfer in electrical circuits - Research Paper Example Home appliances and industries transform energy into other forms to a desired form. Electric circuits are utilized for these operations. Energy is not in the form of matter that can be saved. â€Å"Energy can neither be created nor it can be destroyed, it can be changed from one form to another form† (Moan & Smith, 2007). The phrase â€Å"source of energy† or â€Å"sources of energy† is a wrong phrase as energy is impossible to create. We can only alter it from one form to another form. Battery converts chemical energy to electrical energy. Battery does not generate energy. A power plant converts chemical energy of fuel to electrical energy. Fossil fuels had converted solar energy to chemical energy (Moan & Smith, 2007). An ideal energy conversion system is that that has no losses. One form or energy is converted to the other desired form without any losses. The efficacy of such a system is 100%. It means that the ratio of inputs and outputs equal 1. Practically it is impossible to have an ideal system. A practical energy conversion system does have some losses and thus the desired output is always less than the input. In power generation, internal combustion engine are only 40% efficient. 60% of the input energy is wasted as heat energy that is undesired. If a combined cyclic plant is utilized to convert energy, 80% efficiency can be achieved, as a carefully designed heat recovery system recovers most of the thermal energy that goes to waste. In the similar manner, an electric motor does not convert all the input energy to mechanical energy, some of the energy is dissipated as heat and bearing losses. An electric bulb wastes about 95% of energy, which is dissipated in the form of heat and converts only 5% of the energy to light energy (Bbc.co.uk, 2014). There is much difference in energy and power. Energy yields power. Electrical energy is the product of electrical power and time. If electrical energy is denoted