Energy Transfers

The principle of The Conservation of Energy states that energy can not be or . Energy is simply transformed from one form to another or transferred from one place to another. We can consider nine basic forms of energy, of which four are stores and five flows of energy.

Stores of Energy	Flows of Energy

Machines transfer and transform energy. We can represent this in two different types of diagram:

Energy Transfer Diagram

In Energy Transfer Diagrams, objects are connected with arrows to show of energy, with of energy being placed in boxes. Objects or places go on the of arrows.

If nothing is written at the end of the line, we assume that the energy has been transferred to the .

Sankey Diagrams

Sankey Diagrams show the relative amounts of energy being transferred or transformed. The width of the arrow is scaled to show the proportions of energy. Since the amount of input energy for the machine / system must equal the energy, the arrow is simply divided between the different forms.

Both wasted energy and the energy which is usefully transferred/transformed are eventually transferred to their which become . Energy becomes increasingly and making it increasingly more difficult to use for further energy .