Energy, Chp. 3 Flashcards
(23 cards)
Carnot Efficiency
The percentage of the energy taken from the heat source which is converted to mechanical work (always less than 100%)
Heat of combustion
Max amount of energy available from a fuel source
Electromagnetic Induction
It made the generation and transmission of electricity possible
Ideal Engine
A heat engine operating on a reversible cycle
Steam Engine
An engine that uses expansion or condensation of steam to generate power
External Combustion
Fuel is burned outside of the pressurized part of the engine (ex. Steam engines)
Internal Combustion
Fuel is vaporized and mixed with air to form a combustible mixture (ex. Gasoline engines)
Gasoline Engines
An internal combustion that burns gasoline
Diesel Engines
An internal combustion where heat produced by the compression of air in the cylinder ignites the fuel
Oxidation
The loss of electrons during a reaction
Gram Molecular Weight
The quantity of a chemical compound equal to its molecular weight in grams
Efficiency
The ratio of work done to work required
Steam Turbine
A turbine where a jet of steam rotates a bladed disk
Compression Stroke
Takes place in a cycle of an internal combustion engine
Power Stroke
Takes place in a cycle of an internal combustion engine
Gas Turbine
A turbine driven by expanding hot gases from burning fuel
Heat Pump
A device that transfers heat from a colder area to a hotter area (like in a refrigerator)
Heat Pump air to air
Absorbs heat from outside air
Heat Pump ground to air
Uses air at ground level
Heat Pump water to air
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Coefficient of Performance
A ratio of heating/cooling provided to energy consumed
Cogeneration
The generation of electricity using heat like steam
PURPA
Meant to promote greater use of renewable energy (The Public Utility Regulatory Policies Act)
