Part 3 Flashcards by Kailah Bayangos | Brainscape

Q

Derived from petroleum

A

Engine fuels

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Q

Derived from crude oil

A

Petroleum fuels

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Q

Percent of hydrogen and carbon in petroleum fuels

A

14 and 86

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Q

Class of organic chemicals and give the 5

A

Hydrocarbons

Paraffin
Olefin
Diolefin
Naphthalene
Aromatic

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Q

Percentage of hydrocarbons

A

Distillation curve

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Q

Chemical reaction of carbon and hydrogen

A

Combustion

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Q

All of the hydrogen in the fuel

A

Ideal/theoretical/stoichiometric combustion

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Q

There is not enough O2

A

Rich combustion

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Q

Excess O2

A

Lean combustion

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Q

By weight
O2
N2

By volume
O2
N2

A

23.2
76.8

21
79

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Q

Ratio of the quantity of air supplied to the quantity of fuel

A

Air to fuel ratio

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Q

Measure of air fuel mixture

A

Equivalence ratio

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Q

There is not enough O2 combine in fuel

A

Rich mixture

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Q

Containing more than the required amount of air

A

Lean mixture

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Q

Density of the fuel relative to the density of water

A

Specific gravity of fuels, Y

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Q

Gravity scale devised by API

A

API gravity

Q

API

A

American petroleum institute

Q

Amount of heat energy contained in any fuel

A

Heating value

Q

Based on API gravity

A

Estimation of heating value

Q

Ability of fuels to vaporize

A

Volatility

Q

Formation of fuel vapor

A

Vapor lock

Q

Lowest temperature

A

Flash point

Q

Diesel fuel must be volatile

A

Volatility

Q

Temperature at which crystals begin to appear

A

Cloud point

Q

Highest temperature

A

Pour point

Q

Occurs when air and fuel are mixed

A

Combustion by explosion

Q

Occurs when fuel is injected

A

Boundary combustion

Q

Occurs when a combustible mixture is heated

A

Detonation

Q

Measure of knock resistance of gasoline

A

Octane rating

Q

Rated 100

A

Isooctane

Q

Rated 0

A

Heptane

Q

Indicator of anti-knock

A

Cetane rating

Q

Value 100

A

N-cetane
Cetane

Q

Value 0

A

Alpha-methylnaphthalene

Q

Value 15

A

Heptamethylnonane