Pico Bio-energy Systems for Rural Applications P M V Subbarao Professor Mechanical Engineering Department Indian Institute of Technology Delhi, New Delhi.

Pico Bio-energy Systems for Rural Applications

P M V SubbaraoProfessor

Mechanical Engineering Department Indian Institute of Technology Delhi, New Delhi

A Resource with Diversity can Generate Different Fuels ….

Various vehicles available for

transport of Entropy

Popular Initiatives

• Dedicated energy plantations:– 3 million ha of eucalyptus plantations used for charcoal

making (Brazil); – Plantation program for 13.5 million ha of fuel wood by

2010 in China; – 16000 ha of willow plantations used for the generation

of heat and power in Sweden; and – 50000 ha of agricultural land has been converted to

woody plantations, possibly rising to as much as 4 million ha (10 million acres) by 2020 in USA.

Agricultural residues

• Conversion of Waste product into By-product.• Amount of crop residues amounted to about 3.5 to 4

billion tones annually.• An energy content representing 65 EJ, or 1.5 billion tones

oil equivalent. • Over 2 billion tones of agricultural residues were burned

annually world-wide, producing 1.1 to 1.7 billion tones/yr of CO2.

• The most promising residues from the sugar cane, pulp and paper, and sawmill industrial sectors.

• Estimates are that about 1200 TWh/yr of electricity can be produced from this source.

Various Orders in Bio-mass

Collecting Crisp Dried Leaves In Copious Amounts

Cleaning Dried Leaves To Remove Extraneous

Material

Pelletization Using Briquetting Machine

Pellets

11.5 mm diameter

Bulk density 502 kg/m3

Gasification of 11 mm pellets

Igniting the gasifier

Feeding the gasifier

Running the SI engine on some load

Taking the rev/min Varying the load

Bio-energy: End Products

• Biomass-fired electric power plants/CHP.

• Liquid fuels e.g. bio-ethanol and bio-diesel

• Biogas

• Producer gas

• Production of methanol and hydrogen from biomass.

BIO-ENERGY SOLUTION S for IIT Campus

Pongamia Trees At IIT Delhi

Sir Edwin Landseer Lutyens

Kernel

Cake

Shell

Fruit

Pongamia pinnata tree

Biodiesel

Potential bioenergy feedstock

Gly

ceri

ne

Recognition of Complete Resource