Energy 7. Conservation of energy, energy store transfers & Sankey diagrams

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ENERGY 7. INDEX of notes on conservation of energy, energy transfers, conversions and efficiency - examples, calculations, Sankey diagrams involving wasted energy

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ENERGY INDEX: Types of energy & energy stores, energy transfers & selected energy calculations

These pages will answer many questions e.g.

What do we mean by efficiency in energy transfer?   How do you calculate efficiency?

What is the formula for efficiency?   What does a Sankey diagram tell you? 

How do you draw and interpret a Sankey diagram?

Sub-index for this section on conservation of energy

7.1 Law of conservation of energy and analysis of energy transfers (NOT quantitative)

7.2 Energy transfer and useful work output and formula for efficiency, Sankey diagrams and wasted energy and energy analysis of using electrical appliances, calculation questions with worked out answers

7.3 Costs, efficiency and pay-back time for a variety of energy strategies, examples of reducing unwanted energy transfers including friction and air resistance

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