steam power: student learning goals the student will be able to describe how heat energy can be...
TRANSCRIPT
Steam Power: Student Steam Power: Student Learning GoalsLearning Goals
The student will be able The student will be able to describe how heat to describe how heat energy can be energy can be transformed into transformed into mechanical energy by mechanical energy by the use of a turbine and the use of a turbine and identify different identify different sources of this heat sources of this heat energy.energy.
Steam Power including Steam Power including Geothermal EnergyGeothermal Energy
SPH4CSPH4C
Geothermal EnergyGeothermal Energy
Geothermal energyGeothermal energy is heat is heat generated in the interior of the Earth generated in the interior of the Earth by the decay of radioactive by the decay of radioactive elements.elements.
Geothermal ReservoirsGeothermal Reservoirs
Geothermal reservoirsGeothermal reservoirs, deep , deep underground, heat the groundwater underground, heat the groundwater that seeps down to them.that seeps down to them.
HistoryHistory
Geothermal has Geothermal has been used for been used for water and space water and space heating since heating since Roman times.Roman times.
How It WorksHow It Works
For houses and businesses, a For houses and businesses, a heat heat pumppump pumps water down into the pumps water down into the ground (still near the surface) and it ground (still near the surface) and it returns warmer.returns warmer.
Geothermal Power PlantsGeothermal Power Plants
Geothermal is now also used to Geothermal is now also used to generate electricity.generate electricity.
The largest geothermal power plant system is located at The Geysers in California.
Geothermal HotspotsGeothermal Hotspots
Geothermal energy is most easily Geothermal energy is most easily accessible at accessible at hotspotshotspots, which are , which are usually near the edges of tectonic usually near the edges of tectonic plates.plates.
How It WorksHow It Works
Power plants similarly Power plants similarly pump water down pump water down into the ground but into the ground but on a larger scale and on a larger scale and use the super-use the super-heated water to turn heated water to turn a steam turbine:a steam turbine:
TurbinesTurbines
AA turbine turbine is any rotating engine that is any rotating engine that turns the energy from a fluid (liquid turns the energy from a fluid (liquid or gas) flow into useful work.or gas) flow into useful work.
TurbinesTurbines
The first turbines were The first turbines were windmillswindmills and and waterwheelswaterwheels and were used to do and were used to do jobs such as grind grain into flour.jobs such as grind grain into flour.
Coal PlantsCoal Plants
Modern coal plants burn coal to Modern coal plants burn coal to produce steam to turn steam produce steam to turn steam turbines.turbines.
Nuclear PlantsNuclear Plants
Even nuclear plants just use nuclear Even nuclear plants just use nuclear fuel rods to produce steam to turn fuel rods to produce steam to turn steam turbines.steam turbines.