Experimental Investigation on the Performance of Four Types of Solar Stills in Malaysia

2014 ◽  
Vol 567 ◽  
pp. 56-61 ◽  
Author(s):  
Ali Riahi ◽  
Khamaruzaman Wan Yusof ◽  
Mohamed Hasnain Isa ◽  
Balbir Singh Mahinder Singh ◽  
Amirhossein Malakahmad ◽  
...  

This study aims at improving a solar distillation still by comparing the performance of four types of double slope single basin solar stills to produce adequate amount of potable water in the areas with confined fresh water. These solar stills fabricated with similar shapes. In each solar still a stainless steel basin with the length of 50 cm, width of 30 cm and depth of 8 cm was utilized. The still configurations differed based on inclusion of 2 cm depth of sea sand layer in the basin, a layer of black paint in the basin and use of a 50 W PV-DC heater. The study was conducted to increase the potable water production under Malaysia tropical condition. A comparative research of cumulative water production among these solar stills showed that solar still with black painted basin was the more efficient; producing 234 %, 190% and 148% the potable water produced by a conventional solar still, solar still with sand layer in basin and solar still connected to a PV-DC heater, respectively.

Author(s):  
Onkar Joshi

Water is essential to life. The origin and continuation of mankind is based on water. The supply of drinking water is an important problem for the developing countries. The wooden box has a thickness of 8mm. It consists of a top cover of transparent glass with a tilt of 18°, 26° and is coated with black paint to absorb the maximum possible solar energy. The yield of the single basin solar still is very less and it increases considerably when the solar still was built with copper sheet. An analysis of single slope solar still has done on different tilt angle to optimizing study of tilt angle. They greatly improve the rate of evaporation and the rate of condensation on the cooler surface. The efficiency is higher for solar still made up of copper sheet and its output we have got 1.24 for 18° angle. The optimized tilt angle gave more efficiency than other tilt angle. The optimize water depth is 18mm for 18° angle. This cost-effective design is expected to provide the rural communities an efficient way to convert the brackish water in to potable water.


2021 ◽  
Vol 2119 (1) ◽  
pp. 012096
Author(s):  
Naseer T. Alwan ◽  
S E Shcheklein ◽  
O M Ali

Abstract Solar distillation is an important technology to get potable water from saltwater using clean and free solar energy. In the current study, an experimental and theoretical investigation of a single-slope traditional solar still was carried out, and the freshwater productivity and thermal efficiency were evaluated for four typical days (19/06, 17/07, 22/08, and 15/09) of 2019 by implementing temperature parameters in different points of the solar still, and the weather parameters such as solar radiation, and ambient air temperature. The study showed an acceptable agreement between the experimental and theoretical results with an average of 6.6% measured deviation of the experimental data. It was noticed that the highest values of productivity were recorded on July 17, 2019.


Author(s):  
A Riahi ◽  
K W Yusof ◽  
N Sapari ◽  
B S Singh ◽  
A M Hashim

Access to fresh water is a problem faced by both developed and under developed nations. Although seawater is plentiful, large amounts of energy is required to separate the potable water from the salts. Compared to other desalination processes utilising fossil fuels, solar distillation is inexpensive, environmentally friendly and employs clean and renewable energy. This paper seeks to explore the effect of the single slope solar still condenser plate material on the still production under Malaysian climate. 5 mm thick extra clear float glass condenser plate produced the highest amount of fresh water (63.5 ml) compared to 2 mm thick clear float glass and 5 mm thick bronze glass.


Author(s):  
Ashok Kumar Singh ◽  
Dalvir Singh ◽  
M. K. Lohumi ◽  
B. K. Srivastava ◽  
H. P. Gupta ◽  
...  

2018 ◽  
Vol 6 (3) ◽  
pp. 69-75
Author(s):  
Ali A. F. Al-Hamadani ◽  
Mohammed G. Al-Azawyb ◽  
Mohammed Hameed Ghareeb Al Dulfi

The intensity of radiation reaches 930 W/m2 during April, 2016 in Kut city. Thus this city is suitable to use application of solar energy such as solar still. An experimental study was performed to evaluate the production of Semi Spherical Solar Still (SS-SS) with and without Charcoal. It was measured in the climatic conditions of Kut, Wasit (32o N latitude), Iraq. The still consists of square basin of length 0.3 m and area 0.09 m2 made of Aluminum. The square absorber basin is painted with black paint for maximum absorption of incident solar radiation. It was found that the productivity of Semi spherical solar still without charcoal is better than the using of charcoal at depth of basin water (dbw=1.5 & 2cm). The productivity of SS-SS without charcoal was 2.7 lit/m2 for 6 hours at total irradiation 5935 W/m2. Whereas 2.5 lit/m2 for SS-SS with charcoal at total irradiation 5845 W/m2 for dbw=1.5cm. In addition, the instantaneous efficiency reaches 58% without charcoal and 70% with charcoal at dbw=1.5cm at 3:00PM. The salinity of water before desalination in SS-SS was 999.54 ppm and becomes 4.06 ppm after desalination. It could be concluded that the semi spherical solar still can be used for distilled water production


2021 ◽  
Vol 43 ◽  
pp. 100927
Author(s):  
Suresh Kumar Patel ◽  
Deepak Singh ◽  
G.L. Devnani ◽  
Shishir Sinha ◽  
Dhananjay Singh

2015 ◽  
Vol 57 (32) ◽  
pp. 14929-14944 ◽  
Author(s):  
Ali Riahi ◽  
Khamaruzaman Wan Yusof ◽  
Balbir Singh Mahinder Singh ◽  
Mohamed Hasnain Isa ◽  
Emmanuel Olisa ◽  
...  

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