• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/42

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

42 Cards in this Set

  • Front
  • Back
Active Solar Heating System. 395
absorbs heat from the sun by pumping heat absorbing fluid through special collectors usually mounted on rooftops.
Animal Manure. 404
animal poop that is collected and burned, or converted into biofuels. it is also a good fertilizers
Biobots. 412
molecular robots that can be programed to produce hydrogen, and/or to remove and sequester (isolate) CO2 in the atmosphere.
biodiesel. 407
a diesel fuel made by combining alcohol and vegetable oil extracted from renewable resources.
biofuels. 403
gaseous or liquid conversion of biomass, that can be used to produce energy.
biomass. 403
diverse source of energy that consists of organic plant materials, such as wood and/or agricultural wastes, and animal wastes that can be burned or turned into liquid or gaseous biofuels.
biomass plantations. 404
large plantations of crops that can be used to create biomass. to be converted into biofuels.
cellulosic ethanol. 406
using bacteria, the cellulose and lignin in certain plants into starches, that can be fermented by other bacteria to produce ethanol.
central receiver system. 397
a power tower in a solar thermal system. it is a central heat collector tower, that the sunlight is reflected towards by heliostats.(see other flash-card)
coal burning power-plant. 386
a power plant that burns coal to produce energy. two thirds of the energy made by burning coal ends up as waste heat in the environment.
cogeneration. 387
when two useful forms of energy (such as steam and/or electricity) are produced from the same fuel source. this saves energy and money.
combined heat and power systems (CHP). 387
see cogeneration.
Corporate average fuel economy (CAFE) standards. 387
between 1973-85, the average fuel efficiency sharply rose in the USA car industry... because of government mandated standards (CAFE)
crop residues. 404
left over materials from crops that can be collected and burned or converted into biofuels. to produce heat and energy.
dry steam. 409
a hydrothermal reservoir, that uses dry steam and water vapor, but no water droplets.
earth tubes. 396
a tube is placed underground, it collects cool geothermal energy and pumps cool air into the house. it's expensive.
energy conservation. 385
reducing or eliminating the unnecessary waste of energy.
energy efficiency. 385
using less energy to do more.
energy-efficient diesel car. 390
has lower fuel economies than most other cars, such as gasoline/electronic hybrid cars. however, produce more air pollution.
ethanol. 405
a liquid biofuel that can help replace gasoline and diesel fuels.
fuel cells. 384
can be used to heat/cool, and power your house and car. they run on hydrogen gas that comes from renewable energy sources.
fuelwood crisis. 404
in certain countries the wood is not abundant enough, and they harvest the wood faster than it can be replenished, creating a lack of wood.
gasohol. 406
made from gasoline mixed with 10-20% pure ethanol. can be burned in conventional gasoline engines.
geothermal energy. 409
the heat stored in soil, underground rocks, and fluid in the earths mantle. it is converted into usable energy.
geothermal heat pump. 409
part of a system that can heat and cool a house, by exploiting the difference between the earth's surface and underground temperatures, at a depth of about 2 meters, almost anywhere in the world.
green roofs. 392
roofs covered with plants. they save energy, because they hold water better than conventional rooftops.
heat bulb. 386
another term for the conventional incandescent light-bulbs, which waste 95% of their energy in form of heat.
heliostats. 397
computer controlled mirrors, that track the sun, and focus sunlight on a central heating tower. see central receiver systems
hot water. 409
type of hydro thermal reservoir- that utilizes the heat stored in hot water, found within the earths crust.
hybrid car. 389
a car that uses both electric and gasoline motors allowing for better fuel efficiency.
hydropower. 400
the electricity made from water flow, by making it spin turbines as it travels from high to low elevations.
hydrothermal reservoirs. 409
see: dry steam, wet steam, and hot water.
incandescent light-bulb. 386
a light-bulb that uses only 5% it draws to create light. 95% being wasted as heat. see: heat light-bulb
internal combustion engine. 386
a motor that wastes 94% of energy in its fuel. it is a regular car engine.
large-scale hydropower. 400
---- see last chapter
living roofs. 392
see green roofs.
methanol. 408
made mostly from natural gas. it is a fossil fuel.
methanol economy. 408
economy based on methanol. theorized to be better than hydrogen economy. by making methanol from the CO2 in the air, we will reduce global warming/pollution rates and also be able to create more fuels.
micro-hydrogenerators. 401
small water power generators, the size of a suitcase that are placed in rivers and streams. they are cheap and have very little environmental problems.
net energy. 386
the total amount of energy made from a source, minus the amount of energy wasted in refining the source etc...
net energy efficiency. 386
the efficiency of a substance to produce energy... see net energy.
nuclear power plant. 386
wastes 86% of the energy, and probably 92% when we include the energy needed to deal with the radioactive waste.