Lecture 9 - Climate Change

Question 1

Greenhouse Gas Emission by the US

Answer 1

Transportation 29%
Electric Power 24%

Question 2

World

Answer 2

Electricity and heat production do the most
CO2 released the most

Question 3

Mechanical Turbines

Answer 3

All work the same - only difference is source to spin to the rotor

Question 4

Thermoelectric generation

Answer 4

Use heat to move rotor
Means to generate the heat:
Burning coal
Burning oil
Burning natural gas
Geothermal heat
Concentrated solar power - use water; uses mirrors w sunlight; less common

Worldwide - 1. Coal 2. Natural gas 3. Oil 4. Biofuels 5. Geothermal

Question 5

Other generation types

Answer 5

Motion to move - wind, water, tides, etc

Question 6

Clean Coal Technology

Answer 6

CO2 could be sequestered by pumping it into deep geological formations

Question 7

Clean Coal Technology

Integrated Gasification Combined Cycle

Answer 7

Captures CO2 as well as removing sulfur and mercury
Cut down on emission

Question 8

Clean Coal Technology

Flex- Fuel Boilers

Answer 8

Coal can be mixed with biomass fuels to produce energy with less carbon dioxide emissions
Burning coal w garbage → less coal used and more electricity

Question 9

Natural Gas

Answer 9

EX: methane
Formed from remains of plants and animals
Better
Convenient, cheap, and cleaner burning

Question 10

Fracking

Answer 10

Burns natural gas
Injection of a fluid at high pressure into underground rock formation to open fissures and allow trapped gas or crude oil to flow through a pipe a wellhead at the surface

Question 11

EGR

Answer 11

Make natural gasses “green”
Capturing the CO2 produced from power plant and injecting it tinto unconventional reserves like coal bed or shale
Serves to sequester the CO2 while pushing natural gas out of the ground