FigureĀ 2 . Sample layer arrangement in the plate-type MCD.
The layers followed a vapor-liquid-vapor pattern, with each liquid wick sandwiched between two fine screens. The overall arrangement included 29 vapor channels, 28 liquid wicks, and 56 fine screens. The vapor channels were filled with stainless-steel mesh with larger openings to provide a non-wicking region for vapor flow. The fine screens were Bopp SDS PLUS 53/24 woven mesh and served to prevent intrusion of the vapor into the liquid wicks. The vapor and liquid wicking screens were pressed together into the rectangular housing, and the side and ends of the device were sealed by welding. A small section at the bottom of the column was left empty for the bottoms liquid to accumulate.

Additively-Manufactured Porous Honeycomb (AMPH)

The third device is new to this work and is referred to as the additively-manufactured porous honeycomb (AMPH) column. Its structure is shown in FigureĀ 3.