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Proceedings Paper

Uniform algal growth in photobioreactors using surface scatterers
Author(s): Syed Saad Ahsan; Brandon Pereyra; David Erickson
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Paper Abstract

Cultures of algae, such as cyanobacteria, are a promising source of renewable energy. However, algal growth is highly dependent on light intensity and standard photobioreactors do a poor job of distributing light uniformly for algal utilization due to shading effects in dense algal cultures. Engineered scattering schemes are already employed in current slab-waveguide technologies, like edge-lit LEDs. Stacking such slab-waveguides that uniformly distribute light could potentially yield photobioreactors to overcome the shading effect and grow extremely high densities of algal cultures that would lower monetary and energetic costs. Here, we characterize and design a scattering scheme for specific application within photobioreactors which employs a gradient distribution of surface scatterers with uniform lateral scattering intensity. This uniform scattering scheme is shown to be superior for algal cultivation.

Paper Details

Date Published: 6 March 2014
PDF: 8 pages
Proc. SPIE 8976, Microfluidics, BioMEMS, and Medical Microsystems XII, 89760K (6 March 2014); doi: 10.1117/12.2039957
Show Author Affiliations
Syed Saad Ahsan, Cornell Univ. (United States)
Brandon Pereyra, Binghamton Univ. (United States)
David Erickson, Cornell Univ. (United States)


Published in SPIE Proceedings Vol. 8976:
Microfluidics, BioMEMS, and Medical Microsystems XII
Bonnie L. Gray; Holger Becker, Editor(s)

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