Transcript
Biomass
Paige Morrison, Domonique Johnson
PHYSICAL DESCRIPTION OF RESOURCE:What is it?
• Natural materials that contain stored energy from the sun are Biomass.
• Wood, straw, manure, garbage and alcohol fuels are all examples of Biomass.
• The plants absorb minerals and nutrients from sunlight in order to grow into the necessary materials for biomass.
PHYSICAL DESCRIPTION OF RESOURCE:Location
•Located in places with lots of trees, animals, crops, and garbage. •It is found in large densities at most crop and animal farms and in large forested areas.
PHYSICAL DESCRIPTION OF RESOURCE:
Scale
• Biomass can be used on both large and small scale sites.
• Large scale power plants burn Biomass to create steam to produce energy.
• Home scale wood and pellet stoves have become increasingly common.
• The more sunlight
there is, the easier
plants grow – more
biomass.
TECHNOLOGYHow does it work?
•The most popular way to make biomass into power is to burn it to
produce heat because it is chemical energy.
•The waste wood, tree branches and other scraps are gathered together
in big trucks. •The trucks bring the waste from
factories and from farms to a biomass power where it is dumped
into huge hoppers.• The biomass is fed into a furnace
where it is burned and the heat produced is used to boil water in the boiler, and the energy in the steam
is used to turn turbines and generators.
TECHNOLOGYExperimental or Mature?
• Biomass technology has been around for a long time, so it is
mature.• Bio-fuel technology is still being
developed and is extremely experimental.
USESCurrent:
Stoves produce heat on at home scale.
Biomass is used to produce electricity at a large scale.
Bio-fuels are produced from plants for transportation.
USESProjected:
• Biofuel will become more available, and
will replace fossil fuels.
ENVIRONMENTAL ISSUESwith extracting processes
• At large scale sites, the burning of
biomass to create energy makes, CO2
• It is argued that the CO2 released into
the atmosphere by power plants is
recycled by plants in the cycle of
photosynthesis.
ENVIRONMENTAL ISSUESwith processing, transporting and
using
It is feared that in order to continue with the production of biomass power plants, trees and forests will be cut down in order to fulfill the demand.
The American Heart Association and the American Lung Association have called Biomass a danger to public health due to various issues including respiratory illnesses and heart disease.
ECONOMIC ISSUES: competition with other energy resources• It accounts for almost 15%
of the world's total energy supply and as much as 35% in developing countries, mostly for cooking and heating.
• It is a widely utilized source of energy due to its low cost and indigenous nature
ECONOMIC ISSUES :How costs might change in the
future
• Right now the cost of Biomass is extremely low because it easy to find.
• Biomass is produced naturally so the prices will not likely go up.
• Bio-fuel prices will go down as it becomes easier to produce.
Multiple-choice question #1
Which resource is not bio mass?a.Animal Manureb.Garbagec. Cornd.Uranium
Multiple-choice question #2
About how much of the world’s energy supply does biomass account for?a. 13%b. 15%c. 7%d. 35%
Multiple-choice question #3
What type of energy is Biomass?a. Electromagneticb. Kineticc. Chemicald. Thermal
Multiple-choice question #4
Why is Biomass widely utilized as an energy source?a. Because it has a low cost.b. Because people like to see deforestation.c. Because it produces no CO2
d. It can be converted to electricity effortlessly.
Creditshttp://www.ucsusa.org/clean_energy/technology_and_impacts/energy_technologies/how-biomass-energy-works.html#converting_biomass
http://www.darvill.clara.net/altenerg/biomass.htm
http://blogs.ei.columbia.edu/2011/08/18/is-biomass-really-renewable/
top related