Solar stills represent a promising solution for desalinating saline waters, providing a sustainable alternative in regions with limited access to drinking water. This study evaluates the reliability of a two-dimension...Solar stills represent a promising solution for desalinating saline waters, providing a sustainable alternative in regions with limited access to drinking water. This study evaluates the reliability of a two-dimensional (2D) numerical model of a solar still, developed using COMSOL® Multiphysics software, focusing on a passive cascading device called “Pano Rano.” Two physical prototypes were constructed: one with a standard concrete basin and the other with acrylic plastic. The simulations revealed significant differences in theoretical yield based on the material used. With a radiation of 1200 W/m2, the acrylic prototype displayed an evaporation of 4455.53 mL/m2 and a production of 2925.98 mL/m2 of distilled water, while the concrete model showed an evaporation of 2109.95 mL/m2 and produced 1383.93 mL/m2 of distilled water. The results indicate that evaporation significantly exceeds condensation, highlighting an underutilized evaporation potential. The evaluation of the numerical model’s performance against experimental results was conducted using the mean squared error (MSE) and the coefficient of determination (R2). The best performance was observed in summer (MSE of 16.24;R2 of 0.95), while winter results were less convincing (MSE of 204.77;R2 of −2.78). This variability underscores the model’s limitations and the need for future research. The study also demonstrates that the choice of basin material significantly influences productivity, with acrylic plastic outperforming concrete in terms of thermal efficiency.展开更多
近几年,基于全景图像的漫游逐渐成为实现虚拟现实的一个分支,在地图导航、室内展示中扮演着重要的角色。文章以校园建筑及景色为主要的实景素材收集对象,通过合成全景软件Panoram Studio 2 Pro、创建漫游系统软件pano2vr将照片合成为视...近几年,基于全景图像的漫游逐渐成为实现虚拟现实的一个分支,在地图导航、室内展示中扮演着重要的角色。文章以校园建筑及景色为主要的实景素材收集对象,通过合成全景软件Panoram Studio 2 Pro、创建漫游系统软件pano2vr将照片合成为视觉上的三维场景,使观赏者产生身临其境的感觉,具有一定的交互性、沉浸感,真正实现足不出户漫游大学校园。展开更多
文摘Solar stills represent a promising solution for desalinating saline waters, providing a sustainable alternative in regions with limited access to drinking water. This study evaluates the reliability of a two-dimensional (2D) numerical model of a solar still, developed using COMSOL® Multiphysics software, focusing on a passive cascading device called “Pano Rano.” Two physical prototypes were constructed: one with a standard concrete basin and the other with acrylic plastic. The simulations revealed significant differences in theoretical yield based on the material used. With a radiation of 1200 W/m2, the acrylic prototype displayed an evaporation of 4455.53 mL/m2 and a production of 2925.98 mL/m2 of distilled water, while the concrete model showed an evaporation of 2109.95 mL/m2 and produced 1383.93 mL/m2 of distilled water. The results indicate that evaporation significantly exceeds condensation, highlighting an underutilized evaporation potential. The evaluation of the numerical model’s performance against experimental results was conducted using the mean squared error (MSE) and the coefficient of determination (R2). The best performance was observed in summer (MSE of 16.24;R2 of 0.95), while winter results were less convincing (MSE of 204.77;R2 of −2.78). This variability underscores the model’s limitations and the need for future research. The study also demonstrates that the choice of basin material significantly influences productivity, with acrylic plastic outperforming concrete in terms of thermal efficiency.
文摘近几年,基于全景图像的漫游逐渐成为实现虚拟现实的一个分支,在地图导航、室内展示中扮演着重要的角色。文章以校园建筑及景色为主要的实景素材收集对象,通过合成全景软件Panoram Studio 2 Pro、创建漫游系统软件pano2vr将照片合成为视觉上的三维场景,使观赏者产生身临其境的感觉,具有一定的交互性、沉浸感,真正实现足不出户漫游大学校园。
