T. Reith

TL;DR: In this article, the authors used CFD simulations to determine mass transfer coefficients and power consumption of commercial net spacers and optimized the geometry of the spacer geometries in terms of mass transfer and energy consumption.

TL;DR: In this article, an optimal multi-layer spacer was designed with optimal non-woven nets in the outer layers and twisted tapes in the middle layer for spacer-filled channels.

TL;DR: In this article, the authors validate experimentally the mass transfer simulations presented in a previous paper by the same authors [J Membr Sci 208 (2002) 289] and show that the geometric parameters of spacers have a considerable influence on mass transfer at a given cross-flow power consumption.

TL;DR: In this article, the experimental results of counter current flow air gap membrane distillation experiments are presented and compared with predictive model calculations, and the results show that the previous developed predictive model, with membrane parameters determined from gas permeation experiments, describes correctly the dependence of water vapour flux on temperature level, temperature difference, air gap total pressure, hot water flow and membrane type.

TL;DR: In this article, the authors used CFD simulations to determine mass transfer coefficients and power consumptions in channels filled with non-woven net spacers and found that the geometric parameters of a nonwoven spacer have a great influence on the performance of a spacer in terms of mass transfer enhancement and power consumption.