headrace
Water to wheel
A headrace is the channel that carries water toward a waterwheel, turbine, or mill.
It's the upstream counterpart to the tailrace, which carries water away after it has done its work.
The term appears in discussions of hydropower, historic mills, and water management: The headrace diverted water from the river to power the sawmill.
Dug water passage
- flumeConstructed water channel
- penstockControlled water conduit
- sluiceGated water conduit
- conduitTube conveying fluid or cables
intake · watercourse · millrace · tailrace · diversion · feed · trough · culvert
River-driven grinding facility
- gristmillBuilding for grinding grain
- sawmillLog-to-board factory
- millpondDammed water powering machinery
- millraceChannel driving water wheels
tailrace · waterwheel · sluice · grain · flour · lumber · textile · paper
Blade-driven energy converter
- damWater-holding barrier
- hydroelectricGenerated by flowing water
- generatorElectricity-producing machine
- powerhouseSource of great energy
penstock · forebay · intake · tailrace · electricity · megawatt · kilowatt · generation
Directed rate of motion
- dischargeRelease of substance outward
- currentDirected flow of charge
- volumeAmount of space filled
- pressureForce upon contact
gradient · streamflow · conveyance · kinetics · flux · surge · torrent · cascade
Act of unearthing
- liningInterior fabric layer
- concreteSolid building mixture
- tunnelEnclosed underground route
- alignmentCorrect relative positioning
earthworks · gradient · surveying · reinforcement · engineering · specifications · geotechnical · design
canal
Dug water passage
conduit · intake · watercourse · millrace · tailrace · diversion · feed · trough · culvert · ditch
watermill
River-driven grinding facility
- gristmillBuilding for grinding grain
- sawmillLog-to-board factory
- millpondDammed water powering machinery
millrace · tailrace · waterwheel · sluice · grain · flour · lumber · textile · paper · industrial
turbine
Blade-driven energy converter
- damWater-holding barrier
- hydroelectricGenerated by flowing water
- generatorElectricity-producing machine
powerhouse · penstock · forebay · intake · tailrace · electricity · megawatt · kilowatt · generation · capacity
velocity
Directed rate of motion
pressure · gradient · streamflow · conveyance · kinetics · flux · surge · torrent · cascade · inflow
excavation
Act of unearthing
alignment · earthworks · gradient · surveying · reinforcement · engineering · specifications · geotechnical · design · masonry