Sunday, February 09, 2020
Dalen descendant
Via Eurekalert, an elegant passive desalination system that uses the intrinsic qualities of water and materials to achieve huge efficiency.
The device is essentially a multilayer solar still, with a set of evaporating and condensing components like those used to distill liquor. It uses flat panels to absorb heat and then transfer that heat to a layer of water so that it begins to evaporate. The vapor then condenses on the next panel. That water gets collected, while the heat from the vapor condensation gets passed to the next layer. Whenever vapor condenses on a surface, it releases heat; in typical condenser systems, that heat is simply lost to the environment. But in this multilayer evaporator the released heat flows to the next evaporating layer, recycling the solar heat and boosting the overall efficiency.No electricity or gas, no software, no fancy nanomaterials. Dalen and Willson would approve!
Labels: Patient things
¶ 2:58 PM
