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Denis Liu

on 12 December 2013

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Transcript of Bioenergy

Question 2
By: Denis Liu, Dean Pesavento, and Caleb Skinner
What is Bioenergy?
Bioenergy is energy generated from the use of organic matter. Bioenergy is also called Biomass or Biofuels.
The source of biomass is actually photosynthesis. There are two ways photosynthesis can have an effect. There is an indirect and direct way it can make biomass. The indirect way is that the animals consume the plant matter (leaves, stems, and others) and is later burned. The direct example is that photosynthesis is directly in plant matter and is later burned also.
Landfill Gases
Landfill gas is a complex mix of gases created by the action of microorganisms within a landfill. Landfill gas is 40% to 60% methane, and about 50% CO2. Landfill gas creates energy by "flaring." Flaring is basically boiling the landfill gas. Burning landfill gas is dirtier than burning natural gas, so that's why scientists prefer to flare the landfill

gas, which is less polluting.
Pros and Cons of Biofuels
Biofuels are a renewable resource.
Biomass can get rid of the need of coal, oil and natural gas that we have become used to
Cutting down some trees creates healthier forests

It reduces the amount of trees
The machines used to farm plants emits CO2
Their is less land for farming
Some countries say bioenergy is unneccary because of global hunger, which crops should be used for instead of for biomass
Cool Facts
When biomass rots, its gas turns into methane
Manure, corn, and garbage is sometimes used as biomass energy
A camp fire is biomass energy
This was the biggest energy provider in the 1800's
Ford was the first car company to use ethanol, a biofuel, as power
Question 2
Biomass is a healthy source of energy that supports our country. First of all, Biofuels creates many jobs in regions with Bioenergy plants near by. Near the college of Florida State University, 733 people have been employed, currently. Also several families are getting income to get wood, cut it down and burn it. Unfortunately, using biomass can cause several problems. Forests can be obliterated, and other natural beauties can be harmed. Also burning the plants can create CO2 which is already affecting our atmosphere. However, there are still many good things about biofuels. The carbon dioxide that is created when burned is canceled off because of the oxygen trapped inside of the plants. In addition, biomass is mainly renewable resource, and sun, also a renewable resource is needed heavily to make and complete bioenergy. As you can see, our country is somewhat dependent on the healthy biofuels.
Question 1
Bioenergy is an efficient way to produce energy, and it should be used more often. One reason why we should use biomass more is because it is a renewable resource. Nonrenewable resources such as gas and coal may make more energy, but in the long run, biomass will not pollute the world, and it will create enough energy for us to live. Another reason why we should use biofuels more is that we have a giant source of bioenergy. In fact, wood, wood waste, straw, manure, sugarcane, and even sawdust are adequate supplies to produce more. There is even more plant matter that can be used to produce biomass, which is why we have an enormous supply of plant matter. Even though biofuels should be used more, sometimes, it isn't very effective. For instance, producing bioenergy takes up farmer's land, which brings us less food, which is more essential to humans than energy. It also emits some greenhouse gases when they produce the energy, and sometimes, burning plant matter gives us no energy at all. It requires water to grow, and it is quite expensive to produce, which is why biomass isn't quite as effective as a perfect source of energy could be. All in all, biofuels should definitely be used more than it currently is being used.
Top 5 states producing Biofuels
North Dakota
North Carolina
Question 2:
Waste Energy-12%

The cost of bioenergy in Arizona is close to 5 cents per kilowatt hour. However in the USA it varies from 3-5 cents per kilowatt hour.

To make biomass, it costs money to cut the wood, truck the wood over to the factory and finally burn/flare it. In all that costs about $140 to produce in the year of 2030.

What are the economic
effects of the use or
non-use of this energy
form? Does it create
jobs for our country?
Are there already
factories for the
production of this form
of energy?
Based on
what you
have learned
about the
use or non-
use of this
energy form?
This might be life punk.
List of AZ Landfill Factories
Google images
Energy packet
Bioenergy rules!
Full transcript