Non-Renewables
State the missing fossil fuel: Coal, Oil and ___________
Natural gas
What type energy is present in fossil fuels?
Chemical
Which renewable energy source used the heat from deep in the earth?
Geothermal
What is the majority of NB's power coming from? Renewables or non renewables?
non-renewables
What is the Rankine cycle used to produce?
electricity
What are fossil fuels made out of?
plants, animals and gases
What energy does a windmill use to create electricity?
the kinetic energy of the wind
How does a hydroelectric dam produce electricity?
Water flowing through the dam is used to spin a turbine, producing electricity.
What is burned for fuel at the Belledune power plant?
pulverized coal
What is used to spin the turbine in the rankine cycle?
Steam
What is considered the cheapest, cleanest burning, best option for fossil fuels?
Natural gas
Nuclear fission causing water to boil
________ >_________
Nuclear > Thermal
What are two cons to windmills?
-bad for birds and bats
-wind is not consistent
What is the name of NB's only Nuclear power plant?
Point Lepreau
What is used to cool the steam back into water in the cycle?
seawater
What is the main benefit of nuclear power over fossil fuel power in terms of environmental impact?
No greenhouse gas emissions.
Water above a dam is used to spin a turbine, which produces electricity. State the enrgy transformation
_______ >________ >__________
potential > kinetic > electrical
Why do people say the cost of solar is mainly up front?
Because you have to spend a lot to get them installed, but after that they will reduce your electricity bill.
Which renewable energy source produces the most power for new Brunswick?
hydroelectric dams
Why does water not need to be replaced in the Rankine cycle after it is boiled into steam?
The steam is condensed back into water and used over and over again.
What do they use to break open slate rock to reach gas and oil during fracking?
High pressure water
Complete the energy transfer
sun shines on field, plants grow up, plants harvested and burned
___________ >___________>___________
radiant > Chemical > thermal
state two disadvantages of solar power
-doesn't work at night
-cloud cover reduces power
-only certain angles towards sun are optimal
-only 20% of energy is converted to electricity
What are two construction materials that the by products of Belle dune coal burning are used to create?
Portland cement and drywall (gypsum)
Why are there three sets of turbines in a rankine cycle?
To increase the amount of energy transferred from steam to turbine.