In 2013, the
1st apartment, Bio-Intelligent Quotient (BIQ), powered by algae has been
built in Hamburg, Germany. The microalgae are grown in transparent glass panels.
The glass panels have various uses. Firstly, they function as bioreactors. Sunlight
and liquid nutrients are made available to support the growth of algae by
photosynthesis. The process of photosynthesis generates sugars which becomes
the biomass of the algae. Growing microalgae is a rather efficient process as
its population grows rapidly, 5 times faster than average soil-grown plants. These
algae will be harvested regularly into tanks. The local energy company then transports the
algae biomass to a power plant. The algae will undergo fermentation and the
biogas produced is used to generate electricity. In addition, pressurised air
is pumped into the panels to prevent the settling of micro-organisms. This is
because the micro-organisms may decompose when they settle. Secondly, the glass
panels also act like solar panels. Excess sunlight, not used by the algae, is
collected and converted into heat energy in the building’s geothermal system. The
heat energy can be stored and used immediately. Lastly, the panels can block
out sound and heat and provide shade.
While
generating electricity using biogas is more expensive than solar energy, it is
optimistic that its price will fall with greater research and development of
technology. In the near future, hopefully more green residences will be available
to the people such that they can enjoy green living at an affordable price.
References
References
Iba-hamburg.de, (2015). IBA Hamburg – BIQ. [online]
Available at:
http://www.iba-hamburg.de/en/themes-projects/the-building-exhibition-within-the-building-exhibition/smart-material-houses/biq/projekt/biq.html
[Accessed 21 Sep. 2015].
Roedel, C. and Petersen, J. (2013). Smart Material House
BIQ. 1st ed. [ebook] Hamburg: IBA Hamburg GmbH. Available at: http://www.iba-hamburg.de/fileadmin/Mediathek/Whitepaper/130716_White_Paper_BIQ_en.pdf
[Accessed 21 Sep. 2015].
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