Experimental study of basin-type, multiple-effect, diffusion-coupled solar still

Solar Distillation System Based on Multiple-Effect Diffusion Type Still

“…The theoretical analysis of heat and mass transfer of the MEDS is similar to [3][4][5][6][7] with a constraint that the ratio r should be less than 9 in order to avoid salt crystallization in the wick.…”

“…Although some researchers developed MEDS for experiment [3][4][5][6][7][8], not many good application devices based on the principle of MEDS are available due to the problem of suitable manufacturing techniques. The present study intends to develop a high-performance solar-assisted desalination system (SADS) in which MEDS is adopted.…”

Theoretical Analysis of the Effect of a Bottom Reflector on a Vertical Multiple-Effect Diffusion Solar Still Coupled with a Basin-Type Still

“…Various types of solar stills have been presented and studied as reviewed by Tiwari et al [1], Kaushal and Varun [2], Sampathkumar et al [3], and Kabeel and El-Agouz [4]. Among them, multiple-effect diffusion solar stills, which consist of a series of closely spaced parallel partitions in contact with saline-soaked wicks, have great potential because of their high productivity and simplicity [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23].…”

“…Tanaka et al [17][18][19] theoretically and experimentally studied a vertical multiple-effect diffusion solar still coupled with a basin-type still shown in Figure 1. The still is a single slope basin-type still with a double glass cover and a vertical multiple-effect diffusion still (or multiple-effect section) which is attached to the vertical rear wall of the basin-type still.…”

“…The vertical multiple-effect diffusion still coupled with the basin-type still has very simple structure; that is, the still can be constructed by adding the outer glass cover and some partitions to the conventional single slope basin-type still, which is the simplest solar still. However, the still is highly productive, and Tanaka et al [19] reported that a still with 5 mm diffusion gaps between 11 partitions in the multipleeffect section produces 19.0-24.0 kg/m 2 day of distillate per unit base area at 20.7-22.4 MJ/m 2 day solar radiation on the glass cover in outdoor experiments, which is in good agreement with theoretical predictions calculated from the heat and mass transfer model developed by Tanaka et al [17].…”