Energy (unit 4) Flashcards
Energy Technologies: Coal/Oil Fired Power Plant
- Converts Chemical Potential energy into electrical energy
Energy Technologies: Coal/Oil Fired Power Plant Process
1) Crush Coal into fine dust
2) Into combustion chamber
3) IGNITE
4) Energy is then released and absorbed by chamber and is converted to high-pressure which cause the turbine to spin (connected to the generator to produce energy.
Hydroelectric power plant + original source
- Moving water posses kinetic energy
Original source = Air Currents
Currents form cloud and precipitation falls at a higher altitude which converts energy to kinetic energy (like said before)
Hydroelectric power plant and gravitational energy
Gravitational potential energy is converted into electricity.
Store water reservoir raises the reservoir level which = more gravitational potential.
Force of the water pushes against turbine blades which causes them to turn and generator converts kinetic energy into electrical energy.
Tidal Energy (how do tides work)
Cause = Gravitational attraction between the nearside earth and the center of earth systems. The results is variations in coastal sea levels daily.
These fluctuations cause water to rush into tidal basins approximately twice a day each day, this flowing water is used to turn turbines to generate electricity
Difference between Neap tide and Spring tide
Neap tide = Low tide
Spring Tide = High tide (when the sun, earth and moon are in a straight line)
CANDU Nuclear Power Plant
(Canadian Deuterium Uranium Reactor, a nuclear reactor developed and used in Canada)
- Holds world record for longest running nuclear plant without a shutdown
- Very efficient both in production of energy and in cost.
Per capita
for each person / per person
The highest energy use per capita doesn’t always mean its the place with the most people.
It’s the place with the most industrial development.
Advantages and disadvantages energy sources: Passive solar heating
Pro = No emissions produced
Con= Only produces heat during the day
Advantages and disadvantages energy sources: Wind turbines
Pros = Renewable energy and high sustainability
Cons = requires large amounts of land
Advantages and disadvantages energy sources: Hydroelectric power
= Use of fast flowing water to produce energy
Pros: Very efficient
Cons: Not cost effective
Advantages and disadvantages energy sources: Biomass
= Energy produced from recently living things, burned to to produce high pressure steam
Pros: Renewable and high term sustainability
Cons: Co2 Production - due to the burning
Advantages and disadvantages energy sources: Geothermal energy
geothermal energy = Geothermal power plants use hot water from beneath the earth’s surface produce steam to generate energy.
Pros: No emissions produced.
Cons: Need selective environment in order to work.
Advantages and disadvantages energy sources: Hydrogen fuel cells
= Catalyst anadode (enables hydrogen molecules to be split into protons and electrons) When electrons go through the external circuit the electrons produce electricity.
Pros: No emissions produced
Cons: Difficult to transport and move
Geothermal power plant (what it does, is it renewable, and what it converts in regards to energy)
Uses loop pipes in the ground to collect radiant heat (like solar)
Pipes filled with antifreeze, heat from the earth’s thermal energy is used to heat buildings.
Renewable
Conversion: Converts chemical potential energy to electrical energy.
Wind turbines
- Generates lot of kinetic energy
- Solar energy converted to thermal energy = heat energy in air increases the kinetic energy of turbine which increases energy in generator (genoratos take kinetic energy and convert into electrical energy)
- renewable
