Performance Improvement of Solar Steam Generation Systems Using the Plasmonic Effect of Titanium Nitride
نویسندگان
1 Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
2 1- Process Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran 2- Optoelectronics and Nanophotonics Research Group, Faculty of Electrical and Computer Engineering, Tarbiat Modares University,
3 Department of Engineering, German University of Technology in Oman, Muscat, Oman.
doi
10.22109/jemt.2022.319405.1357چکیده
Today, with the increase in population, access to fresh water is one of the important human needs. Although the conventional methods for obtaining fresh water through recycling or desalination of water are very efficient; they consume high energy and are costly. Solar energy as a sustainable, accessible, and pollution-free energy can be a suitable source of energy to obtain freshwater. Solar steam generation through surface evaporation is a promising technology to achieve high-quality freshwater without the use of solar concentrators. These systems consist of a floating substrate that is covered by a photothermal material to harvest solar energy. The water is transferred to the surface and evaporated by heat localization. In this study, two-layer systems consisting of polyurethane foam substrate and titanium nitride light absorber are fabricated and used for desalination. The studied system, in the best case, has an evaporation rate of 1.31 kg/(m^2 h^1 ) and this rate is equivalent to an efficiency of 84%. According to the results, titanium nitride nanoparticles provide efficient light absorption due to owning a plasmonic effect.
