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Comparison of radiant intensity in aqueous media using experimental and numerical simulation techniques
Adithya Pai Uppinakudru1, Cintia Casado1, Ken Reynolds2
1Universidad Rey Juan Carlos, Móstoles, Community of Madrid, Spain.
Open Research Europe
|May 23, 2024
Summary
Accurate optical modeling in water is improved using ray tracing simulations. This method enhances predictions for applications like water treatment and environmental monitoring, outperforming previous techniques.
Area of Science:
- Optics
- Environmental Science
- Chemical Engineering
Background:
- Modeling radiant intensity propagation in water is challenging due to absorption, scattering, and reflection.
- Reliable simulation methods are crucial for water treatment and environmental monitoring applications.
Purpose of the Study:
- To enhance the accuracy of optical modeling in aqueous systems.
- To compare experimental data with numerical simulation techniques for improved reliability.
Main Methods:
- Ray tracing simulations were compared with the Discrete Ordinate Method (DOM), radiometry, and actinometry.
- The study quantified the effect of a photoreactor quartz tube on light intensity at multiple wavelengths.
Main Results:
- Light intensity losses through the quartz tube were estimated at 10 ± 0.5% for the FX-1 265 source.
- Simulations in water showed up to a 64% increase in central light intensity due to internal reflections and scattering.
- Ray tracing predictions showed good agreement with DOM and experimental data (within ± 6%).
Conclusions:
- Ray tracing is a reliable tool for optimizing and predicting performance in complex aquatic optical systems.
- The validated simulation method addresses challenges in complex radiation modeling for water disinfection and other applications.
