Sponsored Links
The terms "energy balance" and "energy payback ratio", or "energy ratio", are used to describe the relationship between energy output of a system and the energy inputs needed to operate it.
The energy balance can be expressed as:
Eo = dE + Ei (1)
or
dE = Eo - Ei (1b)
where
dE = energy balance
Eo = energy output
Ei = energy input
The energy ratio can be expressed as:
ER = Eo / Ei (2)
where
ER = energy ratio
Sponsored Links
Sponsored Links
Engineering ToolBox - SketchUp Edition - enabled for use with the amazing, fun and free Google SketchUp.
© The Engineering ToolBox 2005
9 12 8