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Apes Renewable Energy Test
Terms in this set (23)
energy obtained from biomass resources and consists of organic material derived from living or recently living organisms, containing chemical energy that originated ultimately with sunlight and photosynthesis
biomass sources are burned in power plants to produce it, generating heat and electricity in the same way that we burn coal for power
liquid fuels used primarily to power automobiles, developed in wealthier industrialized nations like Sweden and the US
alcohol that is produced as a biofuel by fermenting biomass generally from carbohydrate-rich crops.
fuel produced from vegetable oil, used cooking grease, or animal fat. Then is mixed with small amounts of ethanol or methanol in the presence of a chemical catalyst
produced by using ethanol from the cellulose that gives structure to all plant material
using the kinetic energy of moving water to turn turbines and generate electricity
generates electricity by diverting a portion of a river's flow through a pipe or channel passing it through a powerhouse and then returning it to the river
utilities credit customers who produce renewable power and feed it into the grid
passive solar energy
buildings are designed and building materials are chosen to maximize absorption of sunlight in winter and keep the interior cool in the heat of summer.
Example: installing low south-facing windows to maximize the capture of sunlight in winter
active solar energy
using devices to move or store solar energy.
Example: installing flat plate solar collectors on rooftops
Concentrated solar power (CSP)
Technologies convert solar energy into electricity. Reflectors focus sunlight on a receiver, which transfers the heat to a conventional turbogenerator. Works well in sunny, remote areas
Photovoltaic (PV) cells
convert sunlight to electrical energy by making use of the photoelectric effect which occurs when light reaches the PV cell and strikes one of a pair of plates made primarily of silicon. The light causes one plate to release electrons which are attracted by electrostatic forces to the opposing plate connecting the two plates with wires enable the electrons to flow back to the original plate while creating an electrical current
thin film solar cells
photovoltaic cells that are compressed into ultra-thin sheets
mechanical assemblies that convert wind's kinetic energy into electrical energy
not in my backyard, , someone who objects to siting something in their own neighborhood but does not object to it being sited elsewhere
thermal energy that arises from beneath the earths surface
enhanced geothermal systems
engineers drill extremely deep into dry rock, fracture the rock, and pump in cold water. The water becomes heated deep underground and is then drawn up through an outlet well and used to generate power
ground source heat pumps
heat buildings in the winter by transferring heat from the ground into buildings, and they cool buildings in the summer by transferring heat from buildings into the ground.
erecting dams across the outlets of tidal basins, the incoming tide flows through sluice gates and is trapped behind them as the outgoing tide passes through the gates it turns turbines to generate electricity
floating devices that move up and down with the waves, greater at deep-ocean sites, but transmitting the electricity produced to shore would be expensive.
ocean thermal energy conversion
an alternative energy that works by pumping cold water from the deep ocean to the warm shallow water, creating steam, and spinning a turbine to create energy
electricity is input to split hydrogen atoms from the oxygen atoms of water molecules:
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