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science biomass

on 14 March 2013

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Biomass Disadvantages
-more energy is used to produce biomass than you get out of it

-requires a lot of water to grow biomass

-fossil fuels are burned to harvest biomass

-takes up more land for crops and trees

-crops aren't available all year -Renewable

-3 different ways it can be converted
-Thermochemical Energy
-Thermal Energy
-Biochemical Energy Biomass-material from living organisms that can
be converted into energy
-cost more money than fossil fuels to make energy

-food used to make biomass can be be used
to feed starving people

-difficult to store and transport Advantages -biomass created from landfills is mixed
with trash and non-organic material
which contaminates the biomass energy
and creates carbon dioxide

-produces carbon dioxide which adds to global warming -it's renewable

-Once it’s harvested, more biomass energy is planted again on the same ground

-Can grow anywhere, all around the world Environmental Benefits

•Less soil erosion
•Less water pollution
•Fewer wildlife habitats are destroyed from using biomass
•Biomass crops can produce soil that would usually be washed away by heavy rains
•The plant roots hold down the soil, which prevents it from being flooded Economic Benefits

•It is predicted that 17,000 jobs are created from the productions of every one million gallons of ethanol

•Producing five quadrillion Btus(British thermal units) of electricity on 50 million acres of land, increases overall farm income by 12 billion dollars annually

•If our bioenergy use increases, our oil need decreases

•Rural areas also get valuable boosts from bioenergy… since its bulky and difficult to transport, the factories that turn the energy into fuel are usually located in rural areas Helping Americans •Using bioenergy, holds America’s need of foreign nations’ oil •If americans turn to biomass for their number one energy source,
the amount of oil imported would reduce by 50 percent •Farmers are benefited from biomass energy, because they can use crops to help stabilize their incomes •Since these factories need many workers, there are many more jobs that come from these factories Trivia Questions Where are areas that biomass is strongly produced? What are the three different types of energy that can be made when biomass is converted into energy? A. Chemical, Electrical, Solar
B. Biochemical, Chemical, Thermal
C. Thermal, Thermochemical, Biochemical
D. Thermochemical, Biochemical, Solar What are three advantages of Biomass? What are three disadvantages of Biomass? What gas is produced in the process of making Biomass? A. Hydrogen
B. Oxygen
C. Carbon Monoxide
D. Carbon Dioxide Is Biomass renewable or nonrenewable? Where can biomass be grown around the world? A. In Europe and the US
B. Only in the US
C. In Asia, Us, Europe and South America
D. Anywhere around the world Is the following sentence true or false? Biomass energy can be replanted on the same ground after it is harvested.

Biomass energy is mostly used in California. More than 60 million tons of energy sources for biomass energy
is collected each year. Thermal Energy- The oldest and most common way biomass is used. This energy is created by burning biomass materials. The burning of the Biomass materials indirectly creates electricity. When the biomass materials are burned in a boiler, a steam is created. That steam is then used to drive that turbine, therefore creating electricity. Thermochemical Energy- This type of biomass energy is created by heating plant matter. When the plant matter is heated, the materials are broken down into solids, liquids, and or gases. From that, the materials are further broken down into fuels like Methane or alcohol. Biochemical Energy- This type of biomass energy is created by adding bacteria, yeasts, or enzymes to biomass liquids. Once added, the biomass materials ferment and convert into alcohol. When the bacteria is used to break down the biomass, methane is produced and can be captured from landfills to create fuel for heat and power. Advantages
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