Energy Resources and Fossil Fuels Flashcards
energy transformation in geothermal powerplants
earth’s internal heat - mechanical energy of steam - mechanical energy of turbine - electricity (generator) - power up/down and distribution
what does transformers do?
powers up/down energy
advantage of geothermal powerplants
Reliable and consistent
Base load electricity
natural gas that is produced along with crude oil, and typically separated from the oil at the wellhead.
associated gas
advantage of hydroelectric powerplants
- Highest efficiency
- Dam can be used for flood control and water filtration
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
Coal
disadvantage of hydroelectric powerplants
- Dam damages ecosystem
- High maintenance cost
- Specific location
- Poor or excessive water supply
What kind of compounds are fossil fuels
carbon-rich organic compounds
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
natural gas
one of the oldest and largest sources of renewable energy, which uses the natural flow of moving water to generate electricity.
hydropower/hydroelectric energy
what does a generator do?
convert mechanical energy to electrical energy
Examples of Renewable Energy
solar, wind, hydropower, geothermal, biomass/biofuel
types of natural gas
Dry gas - methane
Wet gas - methane with ethane and butane
energy that is collected from renewable resources that are naturally replenished on a human timescale. and what are its advantages and disadvantages?
Renewable Energy
advantage
- Infinite
- Constantly available and abundant
- More environment friendly
disadvantage
- Specific location and requires a huge land area
- Less efficient
- expensive
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
oil
a process through which bacteria break down organic matter—such as animal manure, wastewater biosolids, and food wastes—in the absence of oxygen
anaerobic decomposition
which among the fossil fuels is volatile
natural gas