ppt of biomass energy

ByBEERENDRA SINGH

Types of Resources

• The definition of renewable energy

includes any type of energy generated

from natural resources that is

infinite or constantly renewed. Examples:

solar, wind, and hydropower.

Renewable resources

Biomass

•Plant and animal

material, especially

agricultural waste

products, used as a source of

fuel.

SOURCES OF BIOMASS

we used to produce energy from biomass are three main categories:

energy conversion technologies- o Combustion

o Gasification

o Pyrolysis

Primary energy conversion technologies

Combustion - direct combustion of biomass is the most common way of converting biomass to energy - both heat and electricity. Compared to the gasification and pyrolysis it is the simplest and most developed.

Gasification - gasification is a high-temperature (1200-1400 Degree Celsius)thermo chemical conversion process but the process is used for production of gas, instead of heat.

Pyrolysis - thermal decomposition occurring in the absence of oxygen. We use pyrolysis to produce a liquid fuel, bio-oil or pyrolysis oil.

1. Biogas• Getting energy out of biomass by burning

it, turning it into a liquid or by turning it into a gas called bio

gas.• It contains about 65% of methane gas

as a major constituents

2. Biofuel. Biofuel (also called agro fuel) is a bioorganic fuel .It

is obtained by the fermentation of biomass.• The process by which micro-

organisms break down complex organic substances generally in the absence of

oxygen to produce alcohol and carbon dioxide is

Fermentation.called

Examples of BiofuelEthanol:

It is produced from sugarcane .Its CALORIFIC VALUE is less than petrol. It also less heat when compare to petrol.

Methanol:It is easily obtained from ethanol .Its

CALORIFIC VALUE is too low when compared to gasoline and diesel.

Gasohol:It is a mixture of ethanol + gasoline .It

is used in cars and buses.

the amount of heat released by a unit weight or unit

volume of a substance during complete combustion.

Calorific value

Significance of Bio-energy

Cost is low when compare to

fossil fuels

Biomass consumes more

CO2 than is released during combustion of

biomass.

Biofuel Fossil fuelBio-fuel is produced directly from plant matter typically corn, sugar cane, sugar beets, or cellulose transforming it into alcohol.

Fossil fuels are produced by either the decomposition of plant or animal matter over long periods of time under certain conditions such as high temperature and pressure. Fossil fuels are coal, oil, and natural gas.

Differences