Biomass energy, Biology

Biomass energy

Energy produced by burning biomass it is known as biomass energy. When biomass is burnt, it releases stored chemical energy, which has accumulated in it through the process of photosynthesis.

When plants are burnt, CO2 gas is released that is recaptured by other plants for photosynthesis process. Therefore there is no gain of CO2 in the nature. There are several ways for using biomass for the generation of electricity.

1.      Direct fired 2. Gasification 3. Anaerobic digestion.

1.     Direct fired:  biomass is burnt to produce steam which is used for turning of turbine and generation of electricity by a generator.

2.     Gasification:  In these process high temps is used to convert biomass into gas in an environment lacking oxygen. Gas is used to turn turbine and electricity is generated.

3.           Anaerobic digestion:  in this process organic matter is decomposed by bacteria in an oxygen-starved environment. Methane gas (CH4 ) is produce which is burnt to produce steam to run generator. Biogas is mixture ofCH4, CO2, H2S and hydrogen gas.

Advantages:

1.        It is inexhaustible source of energy.

2.        It reduces municipal, agricultural and industrial waste.

3.        It contributes no new CO2 into the atmosphere.

Disadvantagers:

1.        It is expensive to collect, harvest and store raw material.

2.        It is more expensive than conventional fossil fuel.

3.        If biomass is burnt improperly it may contribute in green house gases.

Posted Date: 7/11/2012 8:11:17 AM | Location : United States







Related Discussions:- Biomass energy, Assignment Help, Ask Question on Biomass energy, Get Answer, Expert's Help, Biomass energy Discussions

Write discussion on Biomass energy
Your posts are moderated
Related Questions
Q. Why are pteridophytes more common in humid places? Pteridophytes are more common in humid places since they depend on water for their gametes to fecundate one another. In hu

Indications For Surgery :  The normal aortic valve area in the adult is about 3-4 cm2. Significant symptoms occur when the valve area is seduced to 1/4"' the normal area

Epidemiology:   The study of disease in populations.  Includes: The Aetiology of the disease Patterns of distribution of the disease How the disease spread

What is the significance of lignin for the xylem formation? Lignin is vital because it is deposited on the cell wall of the xylem cells providing impermeability and rigidity to

Disadvantages of Protozoa

Explain about the term- Therapeutic Therapeutic approaches that scientists are pursuing include transplanting cells to replace those which are damaged or using growth factors

Chiropterophily - Cross-pollination Pollination brought about by bats is called cheiropterophily. Bats which feed at night and do not see very well, are frequent pollinators i

What are the valves of the venous system? What is their function? The valves of the venous system are structures within the veins that permit blood to flow only in the normal w

What is pasteurization of fruit juice?

What is an example of an ion of biological importance? Sodium in one, but so are potassium and calcium