Methods and apparatuses for cultivating phototropic microorganisms
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United States of America Patent
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Nov 26, 2019
Grant Date -
Sep 3, 2015
app pub date -
Apr 28, 2015
filing date -
Apr 28, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Method and apparatus for biomass cultivation (preferably using algae) incorporating photo bio-reactor (PBR) technology coupled with a heat sink to increase energy efficiency. An external PBR array is coupled to an indoor storage tank system with a volume equal to or greater than the volume of the PBR array. A controller can be used to optimize the growth of biomass by optimizing three key growth parameters: exposure to sunlight, temperature and nutrients. The indoor tank system serves as a reservoir where algae can be protected from harsh ambient conditions, minimizing the cost of energy for heating and cooling that would normally be incurred to accommodate ambient temperature swings caused by weather if the biomass is always stored in an outdoor PBR array. During cold winter nights, the biomass can be brought indoors to conserve thermal energy. High energy efficiency can be achieved when the heat sink consists of a second holding tank and a second tubing array, and the swings in the ambient temperature are exploited to add or reject energy from the biomass cultivation.
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Patent Citation Ranking
- 4 Citation Count
- C12Q Class
- 63.06 % this patent is cited more than
- 6 Age
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