Energy efficient water desalination technology

Ezhov Sergeevich,Semicheva Evgenievna,Brezhnev Viktorovich,Ezhova Vladimirovna

doi:10.5937/jaes0-28676

Ezhov Sergeevich, Semicheva Evgenievna + Show 2 more

Open Access

https://doi.org/10.5937/jaes0-28676

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Abstract

The work relates to the technique of desalination of sea and saline waters and can be used to obtain desalinated water with generation of electrical energy. The proposed technology of water desalination is implemented by an autonomous solar desalination-electric generator, containing a rectangular body, the roof of which is covered from above with photocells with a storage unit, an inclined evaporating tray is placed inside the body, dividing the body cavity into evaporation and condensation chambers, communicating with each other at the sides of the body through vertical slots at the ends of the body and the tray are an inlet manifold connected to a submersible feed pump, and a horizontal outlet slot. The bottom of the body is connected to a condensate collection tank, in which a condensate pump is placed, a condensation chamber, immersed in a reservoir, the inner surface of the ends, sides and bottom of the condensation the chamber is made with vertical and horizontal corrugations, into the grooves of which thermoelectric converters are inserted. The first and last of which with photocells are connected to the output collectors, a storage unit, feed and condensate pumps and other them as consumers of electricity.

Highlights

Distillation is the most studied and widespread method of desalting saline, especially sea waters
The proposed water desalination technology is carried out by an autonomous solar desalinator-electric generator (ASO–EG), the principle device of which is shown in Figure 1
Thermoelectric converters (TC), in the form of U-shaped rows, placed in grooves of corrugations 17, consisting of thermoelectric elements (TEE) assembled from paired wire segments made of different metals and soldered at the ends to each other, when heating the internal junctions with condensing steam and cooling the opposite junctions of the TEE from outside with cold water, thermoelectricity is created due to the obtained temperature difference [14]

Summary

Introduction

Distillation is the most studied and widespread method of desalting saline, especially sea waters. As fresh water evaporates from the vessel in which the sea water is located, the salt solution becomes more concentrated and eventually the salt precipitates This results in scale formation, which dramatically degrades the thermal conductivity of the vessel walls, clogs the tubes. The solution to this problem is that seawater, after distilling some fresh water from it, must be discharged and a new portion of seawater must be collected instead. In turn, are associated with thermal pollution of the environment and an increase in the cost of the process This method is useful when there is a large source of cheap heat and a large source water reservoir. This method is useful when there is a large source of cheap heat and a large source water reservoir. [7] to [9]

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