Fig. 2: Prototype of the confined water layer structure.
From: Highly efficient and salt rejecting solar evaporation via a wick-free confined water layer
Schematic (a) and image (b) of the fabricated prototype comprising of an insulating ring, a solar absorber, a floating insulation, five macrochannels, and a balancing weight. c Time-lapse images showing the dynamic response of the confined water layer structure under extreme displacement. d Confined water layer displacement y as a function of time t extracted from time-lapse images (blue data points) and simulated by a buoyancy-driven damped oscillator model (red curve). The thermal insulation layer experienced a rapid floating process (yellow regime) followed by a weak oscillating and damping process (light red regime). Error bars were determined by the spatial and temporal resolution of time-lapse images.
