Reliable access to clean, potable water is a universal necessity. With a growing demand for water and 97% of earth's water being contained in the oceans, desalination of seawater is one obvious solution to this prevalent problem. A solar still provides the capacity to use solar energy to convert saline water into drinkable water in an effective, low-cost, and simple way. With various enhancements, such as the applications of forced convection, a Fresnel lens, or hybridizations of various improvements, the productivity of the distillate output can be significantly increased. This thesis presents the experimental and numerical analysis of a single slope solar still tested in the New Mexico region (32.3199° N, 106.7637° W). The numerical model was then used to simulate the still performance and efficiency under different geographical locations around the world. The application of a Fresnel lens to increase solar input was also modeled and compared to the cases with no Fresnel lens at varying water depths. The existing theoretical models that are utilized for simulating the evaporation in the still must be modified when boiling occurs even in a small area in the still.
|Advisor:||Park, Young H., Kuravi, Sarada|
|Commitee:||Valles-Rosales, Delia J.|
|School:||New Mexico State University|
|Department:||Mechanical and Aerospace Engineering|
|School Location:||United States -- New Mexico|
|Source:||MAI 81/2(E), Masters Abstracts International|
|Keywords:||Desalination, External heating mechanism, Geographic performance, Productivity enhancements, Single-slope solar still|
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