Issue |
E3S Web Conf.
Volume 514, 2024
2024 10th International Conference on Environment and Renewable Energy (ICERE 2024)
|
|
---|---|---|
Article Number | 03002 | |
Number of page(s) | 9 | |
Section | Renewable Energy Technology and Energy Management | |
DOI | https://doi.org/10.1051/e3sconf/202451403002 | |
Published online | 11 April 2024 |
On the Efficiency of Solar Radiation Conversion into Steam, Production of Clean Water, and Generation of Electrical Energy
National Research University “Moscow Power Engineering Institute”, 111250 Moscow, Russia
* Corresponding author: tranqth.96@gmail.com
This study focuses on the development of a model for evaluating the efficiency of converting solar radiation into thermal energy. The efficiency coefficient is represented as a function of multiple variables, including system geometry, time, properties of the working fluid, and external parameters. The developed model is a simplified version and is applicable to systems with a stationary working fluid undergoing heating and vaporization due to solar radiation. Calculations were performed based on the model using a gold-water nanofluid. The results of the calculations demonstrated the existence of an optimal range of optical thickness and nanoparticle concentration, where the working fluid is effectively heated and vaporized. It is shown that the efficiency of systems employing nanofluids as heat transfer fluids cannot be evaluated solely based on the absolute value of the heating efficiency coefficient. However, it can be assessed through its derivative with respect to time. The faster the heating efficiency coefficient decreases over time, the more efficient the system is in terms of heating, and the sooner it reaches a steady-state condition. The developed model serves as a foundation for the advancement of more sophisticated models that allow for the evaluation of various other factors, such as complex geometries with forced fluid flow, the nature of interactions between nanoparticles and the base fluid, as well as mechanisms of solar radiation conversion into thermal energy.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.