Date of Award
Summer 2023
Access Type
Thesis - Open Access
Degree Name
Master of Science in Mechanical Engineering
Department
Mechanical Engineering
Committee Chair
Rafael Rodriguez
First Committee Member
Marc Compere
Second Committee Member
Marwa El-Sayed
College Dean
James W. Gregory
Abstract
The global population has grown by 6 billion people over the last century and is trending toward 9.7 billion people by the year 2050. Agriculture accounts for 70% of global fresh water usage. Technology must be developed to accommodate the increase of food production demanded by the growing global population and the subsequent increase in water usage. Aeroponic technology is a water-efficient vertical farming technology that can reduce water usage by 90% by suspending plant roots in air within a controlled chamber and supplying atomized droplets of a water-nutrient solution directly to the roots.
This study simultaneously tests six droplet sizes of 10 πm, 28 πm, 46 πm, 64 πm, 82 πm, and 100 πm in an experimental aeroponic system by growing butterhead lettuce over a span of 12 days under controlled conditions. After conducting three experiments, the findings indicated that the droplet range of 64 πm to 82 πm experienced the most growth under the reported test conditions by evaluating the change in total length and change in number of leaves growing from the plant stem.
Scholarly Commons Citation
Johnson, Taylor J., "Aeroponic System Optimization for Butterhead Lettuce Growth and Future Sustainability Using Flow Blurring Atomization" (2023). Doctoral Dissertations and Master's Theses. 765.
https://commons.erau.edu/edt/765
Included in
Bioresource and Agricultural Engineering Commons, Electro-Mechanical Systems Commons, Energy Systems Commons, Environmental Engineering Commons