Performance Improvement of Solar Still with and without Use of PCM

2021 ◽  
Vol 7 (2) ◽  
Author(s):  
Avesahemad S. N. Husainy ◽  
Avesahemad S. N. Husainy ◽  
Avesahemad S. N. Husainy
Keyword(s):  
Drinking Water ◽  
Performance Improvement ◽  
Operational Cost ◽  
Solar Still ◽  
Tribal Area ◽  
Water Output ◽  
Drinking Water Purification ◽  
Water Problems ◽  
Change Material ◽  
Purification Of Water

Water problems are same in worldwide. Mainly it is faces by rural area peoples. Mostly drinking water is available from wells and rivers. Because of high population and industrialisation this water might be contaminated with harmful substances such as bacteria and therefore unsafe drinking water. Purification of water by solar is most useful and economic and safe solution. Solar still are mostly useful in rural and tribal area to provide clean water. Solar water still easy to construct, output depend on type of model. And it is operated by unskilled person easily no hard maintenance required and no operational cost and are also clean and safe process and no any type of pollution spread by this process. In this experimentation work comparison is to be made between with and without use of phase change material. It is observed that use of latent storage in solar still will increase water output.

Viruses and Water: Problems, Detection, and Control

1993 ◽  
Vol 27 (7-8) ◽  
pp. 127-133 ◽  
Author(s):  
H. Dizer ◽  
J. Dürkop ◽  
A. Grohmann ◽  
H. Kopecka ◽  
J. M. López-Pila
Keyword(s):  
Drinking Water ◽  
Surface Waters ◽  
Membrane Filtration ◽  
Wastewater Treatment Plants ◽  
Health Hazard ◽  
Primary Source ◽  
Detection Methods ◽  
Secondary Effluent ◽  
Naturally Occurring ◽  
Water Problems

Secondary effluent of wastewater treatment plants contains a high number of viruses and other pathogens, which pose a health risk to the population, (especially when receiv ng waters are used for bathing and swimming, or for growing shellfish. In areas with a high density of population, where drinking water supply is dependent on surface waters and contaminated rivers are the primary source of drinking water, failure of the filtration or of the disinfection step, or of any other “barriers” supposed to warrant safe potable water, will increase the risk of health hazard for the consumer. We have compared the efficiency of viral elimination in secondary effluent by flocculation, uv rradiation and membrane filtration taking naturally occurring, or additionally seeded f2 phages, as indicator for viruses. Flocculation decreased the number of phages present in secondary effluent by more than two logs. If combined with uv irradiation, the elimination reached five additional logs. Membrane filtration eliminated essentially all naturally occurring phages. Improvement of the quality of surface waters calls for a refinement of detection methods for viruses. We have found that the polymerase chain reaction (PCR) might be used for detecting viruses in surface waters.

scholarly journals Experimental study and analysis of single slope solar still integrated with Phase Change Material

2021 ◽  
Vol 1059 (1) ◽  
pp. 012010 ◽  
Author(s):  
N Boopalan ◽  
B Kalidasan ◽  
D Raj Kumar ◽  
E Ragupathi ◽  
M Gurumoorthy ◽  
...  
Keyword(s):  
Experimental Study ◽  
Phase Change ◽  
Phase Change Material ◽  
Solar Still ◽  
Change Material

Improving the performance of trays solar still using wick corrugated absorber, nano-enhanced phase change material and photovoltaics-powered heaters

2021 ◽  
Vol 40 ◽  
pp. 102782
Author(s):  
A.S. Abdullah ◽  
Z.M. Omara ◽  
F.A. Essa ◽  
M.M. Younes ◽  
S. Shanmugan ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Solar Still ◽  
Change Material

scholarly journals Reviewing the Exergy Analysis of Solar Thermal Systems Integrated with Phase Change Materials

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 724
Author(s):  
Macmanus Chinenye Ndukwu ◽  
Lyes Bennamoun ◽  
Merlin Simo-Tagne
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Second Law Of Thermodynamics ◽  
Heat Transfer Fluid ◽  
Solar Still ◽  
Thermal Systems ◽  
Solar Systems ◽  
Exergy Balance ◽  
Change Material

The application of thermal storage materials in solar systems involves materials that utilize sensible heat energy, thermo-chemical reactions or phase change materials, such as hydrated salts, fatty acids paraffin and non-paraffin like glycerol. This article reviews the various exergy approaches that were applied for several solar systems including hybrid solar water heating, solar still, solar space heating, solar dryers/heaters and solar cooking systems. In fact, exergy balance was applied for the different components of the studied system with a particular attention given to the determination of the exergy efficiency and the calculation of the exergy during charging and discharging periods. The influence of the system configuration and heat transfer fluid was also emphasized. This review shows that not always the second law of thermodynamics was applied appropriately during modeling, such as how to consider heat charging and discharging periods of the tested phase change material. Accordingly, the possibility of providing with inappropriate or not complete results, was pointed.

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