TITLE:
Study of Different Parameters Affecting the Productivity of Solar Still for Seawater Desalination under Djiboutian Climate
AUTHORS:
Elmi Idil Mouhoumed, Mohamed-Awal Abdillahi Mohamed, Abdourachid Ibrahim Igueh
KEYWORDS:
Solar Still, Glass Cover Thickness, Salinity, Solar Radiation, Djibouti
JOURNAL NAME:
Energy and Power Engineering,
Vol.14 No.6,
June
17,
2022
ABSTRACT: Experimental studies were carried out to determine the influence of solar
radiation, temperatures variations, basin water amount, wind speed, glass cover
thickness and salinity on the daily production of the distillate output using
solar desalination process, namely single slope solar still to produce fresh
water from seawater in the context of Djibouti. The temperatures variations
increase in relation to solar radiation. Consequently the hourly distillate
output increases and reaches a maximum around noon when the solar still
receives maximum intensity of solar radiation. An inverse relation is found
between glass cover thickness, basin water amount and distillate output
production. The variation wind speed has an effect on the daily production;
which increases in relation to wind speed. In order to assess the effect of
salinity on the daily production, the solar still is provided with brackish
water to compare the daily production obtained from seawater. Experimental
results show that the cumulative productivity decreases when there is an
increase of salinity. In addition, the quality of the distillate output was
tested by measuring TDS, EC, pH, hardness water and chlorides and was compared
to WHO standards. The values obtained for these parameters were in accordance
with the requirements of WHO and good removal efficiency for four parameters.