Asymmetric solar power generation

Is asymmetric tapered multistage solar still a solution to water scarcity?

Water scarcity is a global challenge due to climate change and population growth. Here, authors developed an asymmetric tapered multistage solar still that optimizes mass transfer equilibrium, achieving ultrahigh water production and efficiency.

How much water does a asymmetric tapered 8-stage solar still produce?

As shown in Supplementary Fig. 20b, the water production ranged from 4.55 to 4.92 L·m −2 ·h −1 across the 32 days, further demonstrating the real-world feasibility and robustness of the system. Fig. 5: The evaporation and salt resistance performance of asymmetric tapered eight-stage solar still.

How do asymmetric tapered solar stills work?

Based on previous studies 4, 19, 27, an initial ten-stage asymmetric tapered solar still was fabricated, with a uniformed (D) of 8 mm in each stage. Liquid seals are used to isolate each chamber, allowing condensed water to accumulate at the bottom of each stage and flow out through a designated collection channel.

Does asymmetric tapered 8-stage solar still perform under different irradiation conditions?

However, even at the (alpha) = 30°, the temperature of eighth stage remains as high as 27 °C, indicating stable photothermal performance under varying irradiation conditions (Fig. 4b). Fig. 4: The performance of asymmetric tapered eight-stage solar still under sunlight with different solar elevation angle.