Energy conversion

techniques that maximize the capacity of a battery pack with multiple cells to make all of the capacity available for use and increase each cell's longevity.

device for producing electrical power

quotient of mechanical output and input power

steam engine component which condenses excess steam for reuse as water

solar power cell with multiple band gaps from different materials

nuclear power safety method

thrust produced by passing a jet of matter in the opposite direction to the direction of motion

thumb|A Catalan forge trompe

chart used to estimate the performance of a steam engine

type of loudspeaker

power plant, wherein the thermal energy is exploited by steam in a steam turbine

measurement representing the ratio of carbon dioxide produced by the body to oxygen consumed by the body

materials whose temperature variance leads to voltage change

combustion system in which solid fuels are burned lying on a grate

closed thermodynamic cycle involving fluid

Urban large-scale air purifier

Device for concentrating solar radiation using luminescence

steam engine that uses oil as fuel

production of electric currents and charge separation during phase transition

: Solar power