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Energy density - by weight and volume - for some ways to store energy
Energy Storage Density
|Energy Storage||Typical Energy Densities|
|Thermal Energy, low temperature
||Water, temperature difference 100oC to 40oC
|Stone or rocks, temperature difference 100oC to 40oC
||40 - 50
||100 - 150
|Iron, temperature difference 100oC to 40oC
|Thermal Energy, high temperature
||Stone or rocks, temperature difference 400oC to 200oC
|Iron, temperature difference 400oC to 200oC
|Conventional Fuels Energy
||12500 - 20000
||10000 - 16000
|Synthetic Fuels Energy
||120000 - 142000
||120000 - 142000
||40 - 140
||100 - 900
|Lithium ion batteries
||Hydropower, 100 m head
||30 - 120
||240 - 950
|Flywheel, composite materials
Densities of solids, liquids and gases. Definitions and convertion calculators.
Work, heat and energy systems.
Potential power and energy stored in capacitors.
The amount of thermal energy stored in heated water.
The kinetic energy stored in flywheels - the moment of inertia.
Power potential vs. head and flow rate.
Energy stored in a magnetic field.
Energy possessed by an object's motion is kinetic energy.
Specific gravity and charge of lead acid batteries - temperature and efficiency.
Elevation and potential energy in hydropower.
Specific heat of products like wet mud, granite, sandy clay, quartz sand and more.
Weight and strength of sandstone, granite, limestone, marble and slate.
Energy stored as sensible heat in materials.
The most common units of heat BTU - British Thermal Unit, Calorie and Joule.
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