A new hybrid desalination system using wicks/solar still and evacuated solar water heater

This paper presents a new hybrid desalination approach comprising of evacuated solar water heater, jut geotextile and solar still. An evacuated solar water heater is integrated with the desalination stills to evaluate the continuity production of distillate. Two identical portable solar wick and one...

Full description

Saved in:
Bibliographic Details
Published in:Desalination 2013-09, Vol.325, p.56-64
Main Authors: Omara, Z.M., Eltawil, Mohamed A., ElNashar, ElSayed A.
Format: Article
Language:English
Subjects:
Applied sciences
Brackish
brackish water
Desalination
Distilled water
Double layer
Drinking water and swimming-pool water. Desalination
Evacuated solar water heater
Exact sciences and technology
geotextiles
Linen
Pollution
Productivity
Slopes
Solar heating
Solar still
water flow
Water heaters
Water treatment and pollution
Wick
Wicks
woven fabrics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents a new hybrid desalination approach comprising of evacuated solar water heater, jut geotextile and solar still. An evacuated solar water heater is integrated with the desalination stills to evaluate the continuity production of distillate. Two identical portable solar wick and one basin solar stills were designed to evaluate the systems performance. Jut linen woven fabrics were stitched to the plane wick (lengthwise and crosswise) and integrated with solar still. The jut fabrics were used to reduce the rate of water flow to the appropriate rate. The following variables are studied: Single and double layers wick; plane wick, lengthwise and crosswise linen; feeding hot water during night and two base slope angles of wick still (20 and 30°). Theoretical analysis is verified through experiments. Water productivity is increased by 114% over conventional still for double layer square wick (DLSW) solar still at 30° base slope angle. The daily average efficiency of DLSW was 71.5%. During experimentation, the distillate water productivity increased by 215% when hot brackish water was fed during night time. •Evacuated solar water heater and wick solar still for continuous desalination.•Enhancing the wick still performance by stitching thick linen yarn into plain wick.•Effect of still base tilt angle on the distillate water productivity.
ISSN:0011-9164
1873-4464
DOI:10.1016/j.desal.2013.06.024