Lecture 8 Flashcards
canada’s energy stats
6th largest producer
4th largest net exporter
8th largest consumer
kinetic energy
energy a system possesses as a result of its motion relative to a reference
potential energy
energy that a system possesses as a result of its elevation in a gravitational field
first law of thermodynamics
conservation of energy principle
energy can neither be created or destroyed, but transformed from one form to another
ex. car using gas, chemical energy > mechanical energy
efficiency
how well an energy conversion/transfer process is accomplished
desired output/required input
energy intensity
measure of the energy efficiency of a system, industry, nation
traditional energy
non-renewable energy
take million years to form
petroleum
natural gas
coal
nuclear energy
alternative energy
renewable energy sources
unlimited or can be replenished much faster
hydropower
solar power
wind energy
geothermal energy
biomass
crude oil
“fossil fuels”
mixtures of hydrocarbons that heat and pressure turned biological remains into petroleum
natural gas
combustible mixture of hydrocarbon gases
same process as crude oil converted some into natural gases and some into coal
coal
combustible dark sedimentary rock with a high carbon/hydrocarbon content
same process as crude oil
nuclear power generation
reactors produce heat by splitting atoms
heat is converted into high pressure steam
steam spins the blades of turbine continuously
blades convert steams potential energy to kinetic
turbine runs a generator
generator produces electricity
all canadian are CANDU design, 18 in Ontario, 1 in NB
nuclear fission
splitting of atoms into two or more smaller nuclei which produces heat
usually uranium
produces 6.73x10^10kJ of heat
nuclear chain reaction
the continuation of nuclear fission caused by the collision of the neutrons of previously split atoms and other atoms
controlled in nuclear power plants for a certain quanity of heat
