Chap 14-15 Flashcards

0
Q

BTU (British Thermal Unit)

A

is the amount of heat required to raise one pound of water one degree Fahrenheit

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1
Q

Natural gas

A

found in association with oil or during the search for oil.

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2
Q

Electrical power

A

is defined as the amount of work done by an electric current over a given time.

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3
Q

electric generator

A

is basically a coil of wire that rotates in a magnetic field or that remains stationary while a magnetic field is rotated around it.

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4
Q

turbogenerator.

A

Is The most common way to generate electrical power

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5
Q

A turbogenerator

A

is the combination of a turbine, a sophisticated paddle wheel, coupled to the generator.

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6
Q

Baseload:

A

the constant supply of power provided by large coal-burning and nuclear power plants

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7
Q

Brownouts:

A

result from a deficiency in available power and cause a reduction in voltage

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8
Q

Blackout:

A

a total loss of power

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9
Q

A self healing smart grid

A

can prevent major blackouts and brownouts.

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10
Q

conversion losses.

A

65%-70% of the energy is lost to heat, these
unavoidable energy losses are called

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11
Q

Second Law of Thermodynamics)

A

The heat generated is usually put into the environment through the air (cooling towers) or water.

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12
Q

thermal pollution

A

Waste heat energy discharged into natural waterways is referred to as

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13
Q

undiscovered resources

A

Estimated reserves, which are educated guesses as to where oil or natural gas may be located and how much may be found.

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14
Q

Proven reserves

A

a fairly accurate estimate can be made of how much oil can be economically obtained from the field

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15
Q

production

A

The withdrawal of oil or gas from the field is called

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16
Q

Primary recovery

A

is conventional pumping which can remove only 25% of the oil in an oil field.

17
Q

Secondary recovery

A

is more costly because it involves manipulating pressure in the oil reservoir by injecting brine or steam that forces the oil into the wells. (can remove up to 50% of oil)

18
Q

Enhanced recovery

A

is obtained by injecting carbon dioxide which breaks up oil droplets and enables them to flow again.

19
Q

Hubbert’s peak

A

he predicted that U.S. production would peak between 1965 and 1970.

20
Q

OPEC

A

the Organization of Petroleum Exporting
Countries

21
Q

Oil sands (or tar sands)

A

are a sedimentary material containing bitumen, an extremely viscous, tar-like hydrocarbon.

22
Q

Oil shale

A

is a fine sedimentary rock containing a mixture of solid, wax-like hydrocarbons called kerogen

23
Q

Fracking (or hydraulic fracking)

A

is a technique used to drill for natural gas.

24
Q

CWP

A

coal workers’ pneumoconiosis

25
Q

Energy Independence and Security Act (EI)

A

raises the CAFE standards to meet a target of 35 mpg by 2020.

26
Q

CAFE

A

Corporate Average Fuel Economy

27
Q

Cogeneration (CHP): Combined heat and Power

A

refers to using a single energy source to produce both electrical and heat energy. (80% efficiency)

28
Q

combined-cycle natural-gas unit

A

is a new technology used to generate electricity

29
Q

Fission

A

a large atom of one element is split to produce two different smaller elements.

30
Q

Fusion

A

two small atoms combine to form a larger atom of a different element

31
Q

Isotopes

A

of a given element contain different numbers of neutrons but the same number of protons and electrons.

32
Q

Mass number

A

is the sum of the number of neutrons and the number of protons in the nucleus of the atom.

33
Q

Enrichment

A

is the process of separating 235U from 238U to produce a material containing a higher concentration of 235U.

34
Q

Moderator

A

slows down the neutrons that produce fission so that they are traveling at the right speed to trigger another fission

35
Q

Fuel rods or fuel elements

A

are long metal tubes that are loaded with pellets containing the enriched uranium dioxide.

36
Q

Control rods

A

are rods of neutron-absorbing material inserted between the fuel elements.

37
Q

Radioisotopes

A

become stable by spontaneously ejecting subatomic particles (alpha particles, beta particles, and neutrons), high-energy radiation (gamma rays and X-rays), or both.

38
Q

The particles and radiation are collectively referred to as

A

radioactive emissions.

39
Q

Radioactivity is measured in

A

Curies

40
Q

Radioactive waste

A

are materials that become radioactive by absorbing neutrons from the fission process.

41
Q

Radiation exposure is measured as

A

absorbed dose