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Full-Text Articles in Engineering
Design And Construction Of A Tunable Light Source With Light Emitting Diodes For Photosynthetic Organisms, Nathan Phillipps
Design And Construction Of A Tunable Light Source With Light Emitting Diodes For Photosynthetic Organisms, Nathan Phillipps
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This thesis describes and documents the design and construction of a light source which is tunable and has the ability to mimic the spectral output of the sun in the photosynthetic active radiation range (400 - 700 nm). To adjust the spectral output at different wavelengths different types of LEDs were chosen and combined. This thesis describes the design, construction, testing, and suggestions for further improvements to this light source. The light source is comprised of 900 LEDs with 26 different peak wavelengths within the photosynthetically active radiation range. The light source is made tunable through the use of a …
Using Stereo Particle Image Velocimetry To Quantify And Optimize Mixing In An Algae Raceway Using Delta Wings, Blake W. Lance
Using Stereo Particle Image Velocimetry To Quantify And Optimize Mixing In An Algae Raceway Using Delta Wings, Blake W. Lance
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Biofuel research has been continually growing over the past six decades. Of the potential sources for biofuels, microalgae is the most promising, and circulating (raceway) ponds are the most cost-effective method for growing microalgae in abundance. Nevertheless, biofuel production from algae must be more efficient to be competitive with traditional fuels. Previous studies using several airfoils, triangles, and squares at high angles to the flow direction (angle of attack) show an increase in mixing in raceways and can improve productivity by up to a factor of 2.2. Researchers show that increasing growth by increasing mixing is a repeatable effect that …
Cross Flow Filtration For Mixed-Culture Algae Harvesting For Municipal Wastewater Lagoons, Misheka Wilson
Cross Flow Filtration For Mixed-Culture Algae Harvesting For Municipal Wastewater Lagoons, Misheka Wilson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The City of Logan Environmental Department has a goal to remove chemicals from the municipal wastewater that can cause algae growth in Cutler Reservoir that will impair use for recreation. The proposed plan to accomplish the goal is to grow algae within the 460-acre Logan Lagoon wastewater system, and then remove the algae from the treated wastewater that enters Cutler Reservoir. The collected algae may be used to produce biodiesel to fuel the City solid waste vehicles. The City will coordinate the development and implementation of this project with the assistance of the Utah State University Biological Engineering Department. The …