The document discusses how algae can be used to produce energy. It explains that algae use photosynthesis to capture carbon dioxide and sunlight to produce biomass and oxygen. The biomass can then be converted into biodiesel and ethanol through various processes. However, there are challenges to producing fuel from algae at large scales, including developing low-cost and high productivity production systems over thousands of hectares. Maximizing the energy efficiency of algal photosynthesis involves better controlling parameters like temperature, pH, and salinity.
4. • Large and various group of simple,
typically autotrophic organisms ranging
from unicellular to multi-cellular form.
• Eukaryotic organism, have a nucleus
enclose within a membrane and plastids
bound in one or more membrane.
• Many are photoautotrophic, deriving
energy both from photosynthesis and
uptake of organic carbon.
5. CONCLUSION:
An algae is a photoautotrophic organism
that derive energy both from photosynthesis
and uptake of organic carbon.
7. • Renewability and biodegradability
• Lower carbon emission: when bio fuels are
burned, they produce significantly less
carbon output and fewer toxins, making
them a safer alternative to preserve
atmosphere quality and lower pollution.
• Economic stimulation: bio fuels are
produced locally, bio fuels production will
also increase the demand for suitable bio
fuels crops, providing economic
stimulation to the agriculture industry
8. CONCLUSION:
• Renewability: much more easily
renewable.
• Biodegradability: easily biodegradability
and far safer to handle, less hazardous,
less expensive to clean up
10. • Algae need water, sunlight and carbon dioxide to
grow. The oil they produce can then be
harvested and converted into biodiesel; the
algae's.
• Carbohydrate content can be fermented into
ethanol. Both are much cleaner-burning fuels
than petroleum-based diesel or gas.
• During photosynthesis, algae and other
photosynthetic organisms capture carbon
dioxide and sunlight and convert it into oxygen
and biomass. Up to 99% of the carbon dioxide in
solution can be converted in large-scale open
pond systems.
11. • There are more than 100,000 strains of
algae, with differing ratios of three main
types of molecule: oils, carbohydrates and
protein. Strains of algae high in
carbohydrates as well as oils produce
starches that can be separated and
fermented into ethanol; the remaining
proteins can be turned into animal grains.
Green Fuel hopes its pilot plant will see
initial yields of 8000 gallons of biodiesel
and 5000 gallons of ethanol per acre of
algae.
12. CONCLUSION:
• During photosynthesis, algae and other
photosynthetic organisms capture carbon
dioxide and sunlight and convert it into
oxygen and biomass. Up to 99% of the
carbon dioxide in solution can be
converted in large-scale open pond
system.
• Photons + CO2 + H2O > Biomass + O2
13. What are the
challenges to
produce fuel from
algae?
14. • Overall challenge is to develop low‐cost
high‐productivity.
• Production systems at scale (e.g. 1000
hectares). To produce algae fuel, it require
around 15000 square mile.
• Technical challenges are mostly upstream
‐ related to algae.
16. How to
maximizing
energy efficiency
of algal
photosynthesis?
17. • Better protection from outside and better
control of gas transfer during the process.
• Better control of parameters influencing
the algae culture such as temperature, pH
and salinity.
19. REFERENCES:
• http://en.wikpedia.org/wiki/Algae-fuel
• Michael Anissimov (2010, September08) “What is algae” taken on
October06,2010 from http://www.wisegeek.com/what-is-algae.htm
• Melissa Mayntz “Advantages and disadvantages of bio fuels” taken on
October07, 2010 from Advantages and Disadvantages of Bio fuels -
Love To Know Green Living.htm
• Prabhakar Pillai “Advantages and disadvantages of bio fuels” taken on
October07,2010 from Advantages and Disadvantages of Biofuels.htm
• Amanda Leigh Haag “Powered bio fuels: turning algae into americals new
energy taken on October07, 2010 from
http://www.popularmechanics.com/science/energy/biofuel/4213775
20. • Dr. Luc Haspeslagh “Aquatic phototrophs for the production of fuels and
green chemicals” taken October06, 2010 from
http://www.biofuelstp.eu/spm3/pdf/TOTAL_Microalgae.pdf
• John Addison (2010, March, 03) “Visit greenhome.com - buy solar lights to
shower curtains – the walk in cleantech” taken on October06,2010
from http://www.cleantechblog.com/2010/03/fuelfromalgae-challenge-
do-not-stop.html
• Bohemian (2010, July02) “Next generation bio fuels: five challenges and
five positive notes’ taken on October07, 2010 from
http:www.//thhouraction.com/blogs/bohemian/next- generation- bio
fuels-Five Challenges and Five-positive notes.
• Sebastian Olenyi (2009, May) “ Algae – the energy solution? ” taken on
October07, 2010 from www.scribd.com/doc/15717635/Algae-the-
energy-solution
