scholarly journals Desalination of seawater using carbon-coated solar absorber in solar still

2022 ◽  
Vol 1217 (1) ◽  
pp. 012001
Author(s):  
W M J Karen ◽  
C Y Wong ◽  
G J H Melvin

Abstract Desalination is a process of eliminating salt and other minerals from seawater which turns it to a safe usable water. This study showed the generation of clean water from seawater using carbon-coated solar absorber in two different solar still body colours which are transparent and black solar still, under direct solar exposure at approximately 1.2 kW/m2. The efficiency of carbon-coated solar absorber in the transparent and black solar still was computed, while the clean water collected was examined for its pH and salinity. Carbon-coated solar absorber in black solar still exhibit the highest efficiency at around 35.71%, where the pH and salinity of the collected clean water was substantially reduced to usable water at 6.55 and 62 ppm, respectively.

2021 ◽  
pp. 1-8
Author(s):  
Wong Min Jin Karen ◽  
C. Y. Wong ◽  
Zhipeng Wang ◽  
Willey Y. H. Liew ◽  
G. J. H. Melvin

2021 ◽  
Author(s):  
Prof. Dr. Ravishankar Sathyamurthy ◽  
Abd Elnaby Kabeel ◽  
Ali Chamkha ◽  
Hemanth Arun Kumar ◽  
Hariprasath Venkateswaran ◽  
...  

Abstract Today, availability of clean water is hard as the residents are expanding and moving fast to achieve rapid urbanization as a result need for clean water has been raised. Solar stills are the solution to desalinate to obtain pure water. This paper represents the theoretical and experimental study of tubular solar still with and without fins. The reading was recorded from 8:00 AM to 6:00 PM. Efficiency of TSS with fins and without fins are 23.39% and 13.76% respectively. The rate of irreversibility from the basin of TSS with flat is higher than TSS with finned absorber. Similarly, the rate of irreversibility from water is significantly reduced using finned absorber. Also, the exergy efficiency of TSS with finned absorber is higher compared to TSS with flat absorber.


2021 ◽  
pp. 130214
Author(s):  
Tijani Oladoyin Abimbola ◽  
Husna Takaijudin ◽  
Balbir Singh Mahinder Singh ◽  
Khamaruzaman Wan Yusof ◽  
Abdurrasheed Said Abdurrasheed ◽  
...  

2019 ◽  
Vol 12 (3) ◽  
pp. 841-864 ◽  
Author(s):  
Minmin Gao ◽  
Liangliang Zhu ◽  
Connor Kangnuo Peh ◽  
Ghim Wei Ho

This comprehensive review provides a guide to design photothermal materials and systems for solar-driven water evaporation addressing the water–energy nexus.


2020 ◽  
Vol 30 ◽  
pp. 101522 ◽  
Author(s):  
S. Shanmugan ◽  
F.A. Essa ◽  
Shiva Gorjian ◽  
A.E. Kabeel ◽  
Ravishankar Sathyamurthy ◽  
...  

Author(s):  
Rees Alexa Robert ◽  
Dinesh Keloth Kaithari ◽  
M. Mumtaz Mirza ◽  
Parimal Sharad Bhambare

Purpose:The supply of pure fresh water is becoming a rising issue is many areas of the world. Clean water being a basic requirement is still unavailable to a large number of people. The fast development and growth in population and agriculture has helped to increase the need of clean water. The solar distillation is one of the most cost efficient ways to accomplish this. Methodology:When water evaporates from the basin of the still, it leaves the various impurities behind resulting in clean palatable water. Solar stills have a comparatively low yield but can be used to provide safe water options to rural areas of the world. To increase the yield of the solar still nano Al2O3 fluid is used,which is prepared using a dispersant of Sodium Dodecyl Benzene Sulphonate (SDBS). The still is a double slope basin type solar still with black paint coating on the inside and external reflecting mirrors, to enhance the yield. Main Findings:This project compares the efficiency and output of double slope solar still with and without the nanofluid. The single basin double slope solar still was fabricated using low cost durable materials and the 0.01 vol. % Al2O3 water based nanofluid was prepared. The results showed a positive outcome of a 15% increase in the rate of distillate collected with the use of nanofluids. The payback period was calculated to be less than 2 weeks without nanofluid and one week with the use of nanofluid. Implications:The present study is useful for obtaining pure drinking water at remote locations in Sultanate of Oman where solar energy is abundance. Novelty of Study: Nanofluids are used to enhance the distillation rate when compared to the conventional solar stills.  


2010 ◽  
Vol 24 (1-3) ◽  
pp. 140-149 ◽  
Author(s):  
Saad A. Mutasher ◽  
Nazim Mir-Nasiri ◽  
S.Y. Wong ◽  
K. C. Ngoo ◽  
L.Y. Wong

Chemosphere ◽  
2021 ◽  
pp. 130618
Author(s):  
Qimao Gan ◽  
Yangyi Xiao ◽  
Chenxing Li ◽  
Huan Peng ◽  
Tuqiao Zhang ◽  
...  

Author(s):  
Sydney S. Breese ◽  
Howard L. Bachrach

Continuing studies on the physical and chemical properties of foot-and-mouth disease virus (FMDV) have included electron microscopy of RNA strands released when highly purified virus (1) was dialyzed against demlneralized distilled water. The RNA strands were dried on formvar-carbon coated electron microscope screens pretreated with 0.1% bovine plasma albumin in distilled water. At this low salt concentration the RNA strands were extended and were stained with 1% phosphotungstic acid. Random dispersions of strands were recorded on electron micrographs, enlarged to 30,000 or 40,000 X and the lengths measured with a map-measuring wheel. Figure 1 is a typical micrograph and Fig. 2 shows the distributions of strand lengths for the three major types of FMDV (A119 of 6/9/72; C3-Rezende of 1/5/73; and O1-Brugge of 8/24/73.


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