A line that represents the elevation of energy head of water flowing in a pipe, conduit or channel. The line is drawn above the hydraulic grade line (gradient) a distance equal to the velocity head (V2/2g) of the water flowing at each section or point along the pipe or channel. Also see hydraulic gradeline.
ENERGY GRADE LINE (E.G.L.)
Meaning of ENERGY GRADE LINE (E.G.L.) in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012