Energy Resources and Fossil Fuels Flashcards

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1
Q

energy transformation in geothermal powerplants

A

earth’s internal heat - mechanical energy of steam - mechanical energy of turbine - electricity (generator) - power up/down and distribution

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2
Q

what does transformers do?

A

powers up/down energy

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3
Q

advantage of geothermal powerplants

A

Reliable and consistent
Base load electricity

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4
Q

natural gas that is produced along with crude oil, and typically separated from the oil at the wellhead.

A

associated gas

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5
Q

advantage of hydroelectric powerplants

A
  • Highest efficiency
  • Dam can be used for flood control and water filtration
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6
Q

A nonrenewable fossil fuel that is combusted and used to generate electricity.
- a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons.
- classified as a nonrenewable energy source because it takes millions of years to form.
- contains the energy stored by plants that lived hundreds of millions of years ago in swampy forests.
- it is mined

A

Coal

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7
Q

disadvantage of hydroelectric powerplants

A
  • Dam damages ecosystem
  • High maintenance cost
  • Specific location
  • Poor or excessive water supply
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8
Q

What kind of compounds are fossil fuels

A

carbon-rich organic compounds

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9
Q

a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes. is colorless and odorless, so odorizers such as mercaptan, which smells like sulfur or rotten eggs, are commonly added to natural gas supplies for safety so that leaks can be readily detected.

fossil fuel and non-renewable resource that is formed when layers of organic matter (primarily marine microorganisms[3]) decompose under anaerobic conditions and are subjected to intense heat and pressure underground over millions of years.[4]

  • formation similar to oil
A

natural gas

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10
Q

one of the oldest and largest sources of renewable energy, which uses the natural flow of moving water to generate electricity.

A

hydropower/hydroelectric energy

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11
Q

what does a generator do?

A

convert mechanical energy to electrical energy

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12
Q

Examples of Renewable Energy

A

solar, wind, hydropower, geothermal, biomass/biofuel

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13
Q

types of natural gas

A

Dry gas - methane
Wet gas - methane with ethane and butane

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14
Q

energy that is collected from renewable resources that are naturally replenished on a human timescale. and what are its advantages and disadvantages?

A

Renewable Energy

advantage
- Infinite
- Constantly available and abundant
- More environment friendly
disadvantage
- Specific location and requires a huge land area
- Less efficient
- expensive

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15
Q

a nonrenewable fossil fuel. It is formed when heat and pressure compressed the remains of prehistoric plants, animals, and aquatic life under the bed of the sea or lakes for millions of years, thus becoming fossil fuel. It is drilled and pumped from giant underground pockets, or oil wells, and processed through a system called distillation.
- mixtures of hydrocarbons that formed from the remains of animals and plants (diatoms) that lived millions of years ago in a marine environment before the existence of dinosaurs

A

oil

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16
Q

a process through which bacteria break down organic matter—such as animal manure, wastewater biosolids, and food wastes—in the absence of oxygen

A

anaerobic decomposition

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17
Q

which among the fossil fuels is volatile

A

natural gas

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18
Q

uses of natural gas

A

Electricity, household industrial heating, fuel for vehicles

19
Q

renewable energy where heat is derived within the sub-surface of the earth. Water and/or steam carry this to the Earth’s surface

A

geothermal energy

20
Q

What is the only renewable source that is not powered by the sun?

A

geothermal energy

21
Q

energy that comes from sources that will run out or will not be replenished in our lifetimes—or even in many, many lifetimes. and what are its advantages and disadvantages?

A

Non-renewable Energy

advantage
- High-efficiency level
- Easily transportable
- Provides more energy

disadvantage
- Finite supply (about 2-3 decades left)
- Political disputes (central Asia/middle east)
- High levels of pollution
- Adverse impacts on the environment

22
Q

origin of oil/petroleum

A

Marine organisms; anaerobic decomposition; heat and pressure

23
Q

renewable energy by which the wind is used to generate mechanical power or electricity.

A

wind energy (eolic)

24
Q

What are examples of fossil fuel

A

Coal, Oil, Natural Gas

25
Q

types of coal

A

Lignite - sub-bituminous - bituminous - anthracite (least carbon to most carbon, more pressure/metamorphism)

26
Q

origin of coal

A

plants, (during) carboniferous period, coalification

27
Q

renewable energy that comes from radiation from the Sun capable of producing heat, causing chemical reactions, or generating electricity.

A

solar energy

28
Q

Fossil Fuel Powered Steam Turbine Electricity Generation

A

Fossil Fuels -Combustion Chamber (burning, exhausts gases to pollution control) - steam boiler (pumps excess water to steam condenser to cool it) - steam valve (for speed control) - steam turbine - synchronous generator - power

29
Q

uses of coal

A

Burned for electricity, converted to gas

30
Q

which among the fossil fuels is the most environment-friendly

A

natural gas

31
Q

is produced from uranium, a nonrenewable energy source whose atoms are split (through a process called nuclear fission) to create heat and, eventually, electricity. (through hot water, steam, and turbines)

A

nuclear energy

32
Q

What are the two types of energy sources?

A

Renewable and Non-Renewable Energy

33
Q

in geothermal & fossil fuel powerplants, are all the electricity produced transported to homes, etc?

A

no, some energy goes to the cooling tower/steam condenser to cool the water

34
Q

origin of natural gas

A

Marine organisms; anaerobic decomposition; heat and pressure, longer period

35
Q

disadvantage of geothermal powerplants

A

High cost and maintenance
Possible instability of location (due to volcanism)
Release of gases

36
Q

the process of the chemical transformation from vegetation into coal

is caused by temperature and pressure inherent to burial and is enhanced by geologic time and tectonism.

A

coalification

37
Q

world’s leading renewable energy source

A

hydroelectricity (83% of renewable power)

38
Q

energy transformation in hydroelectric powerplants

A

potential energy of water - kinetic energy of water - mechanical energy of turbine - electricity (generator) - power up/down and distribution

39
Q

renewable energy that is generated or produced by living or once-living organisms.

A

biomass energy

40
Q

Energy with the most consumption in the world

A

Fossil fuels, particularly Petroleum (Oil) (33.89%)

(and the nuclear energy, hydropower, and so on)

41
Q

uses of oil

A

Petroleum products, electricity, plastic

42
Q

heat source of geothermal powerplants

A

magma chambers

43
Q

types of oil

A

Petroleum, gasoline, diesel, jet fuel, asphalt

44
Q

Examples of Non-renewable energy

A

Coal, Oil, Gas, Nuclear