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Renewable energy resources_ biomass energy introduction
1. RENEWABLE ENERGY RESOURCES
Biomass energy-Introduction
Presented by:
Dr. Bilal Ahmad Zafar Amin
Solar Energy
Wind Energy
Biomass Energy
Thermal Energy
Renewable
Resources
Oil
Coal
Natural Gas
Nuclear
Non-Renewable
Resources
2. Week # 10, Lecture # 2 Renewable Energy Resources
Concept of natural biomass in context to energy resources
Photosynthesis process in natural ecosystem
Environmental benefits of biomass energy
Share of biomass energy in gross power generation
Biomass types and sources
Biomass conversion to bioenergy
Biomass to bioenergy technologies
Lecture Outlines:
3. Week # 10, Lecture # 1 Renewable Energy Resources
Biomass: renewable energy organic sources coming from biological
material such as plants, animals, microorganisms and municipal wastes.
Biomass can be considered a renewable energy source because plant
life renews & adds to itself every year.
Biomass contains stored chemical energy from the sun. Plants produce
biomass through photosynthesis. Biomass can be burned directly for
heat or converted to renewable liquid and gaseous fuels through
various processes.
4. Week # 10, Lecture # 1 Renewable Energy Resources
Photosynthesis is a chemical process that converts carbon dioxide
into organic compounds especially sugars using the energy from
sunlight.
Biomass is produced in the photosynthesis process which converts
the solar energy into biomass energy.
Photosynthesis process only occurs in green plants. It is the process
of combining the carbon dioxide from the atmosphere with water
plus light energy to carbohydrates produce (sugars, starches,
celluloses etc.) and oxygen.
Photosynthesis Process- Biomass Formation
5. Week # 10, Lecture # 1 Renewable Energy Resources
Solar energy Photosynthesis Biomass Energy conversion
6. • Widespread availability in many
parts of the world
• Contribution to the security of
energy supplies
• Generally low fuel cost
compared with fossil fuels
• Biomass as a resource can be
stored in large amounts, and
bioenergy produced on demand
• Creation of stable jobs,
especially in rural areas
• Developing technologies and
knowledge base offers
opportunities for technology
exports
• Carbon dioxide mitigation and
other emission reductions (SOx,
etc.)
Week # 10, Lecture # 1 Renewable Energy Resources
Advantages of Biomass
• Generally low energy content
• Competition for the resource with
food, feed, and material
applications like particle board or
paper
• Generally higher investment costs
for conversion into final energy in
comparison with fossil alternatives
Disadvantages of Biomass
9. Week # 10, Lecture # 1 Renewable Energy Resources
Share of biomass energy in gross power generation in
developed nations.
USA vs Germany
10. Electricity generation in Pakistan by fuel type
2019-2020
Week # 9, Lecture # 1 Renewable Energy Resources
11. Week # 9, Lecture # 1 Renewable Energy Resources
Current scenario of electricity generation by
source- Pakistan
Estimated potential contribution of biomass
for electricity generation- Pakistan
13. Week # 10, Lecture # 1 Renewable Energy Resources
Biomass Types Types of biomass feedstock
14. Week # 10, Lecture # 1 Renewable Energy Resources
Municipal Solid Waste (MSW) potential of Pakistan
15. Week # 10, Lecture # 1 Renewable Energy Resources
Biomass Conversion to Bioenergy
16. 1. Biomass power is simply carbon neutral electricity produced from
renewable organic waste products, which could have been openly
burned, dumped in landfills or just left in the forest to cause
fires.
2. Energy from the sun is transferred and stored in plants in the
form of chemical energy. When the plants are cut or die, wood
chips, straw and other plant matter is delivered to biogas
plant.When biomass is burnt, it releases energy in the form of
heat.
3. The biomass plants burn wood or other forms of waste to
generate steam. The energy from the steam is directed via pipes to
run turbines.
Week # 10, Lecture # 1 Renewable Energy Resources
Biomass Conversion to Energy
17. Week # 10, Lecture # 1 Renewable Energy Resources
4. The steam rises up to run turbines that produce electricity or generate
heat for homes and industries.
5. In most countries, biomass plants have been built in the
countryside to provide electricity to the local population. There are
waste-to-energy plants that burn trash to produce electricity and
power millions of homes. Energy can also be used by burning the
scrap wood or wood chips that are left over after trees have been
trimmed.
6. Biomass can be burned directly for heat or converted to renewable liquid
and gaseous fuels through various processes
Biomass Conversion to Energy
