Energy, exergy and environmental assessment of solar still with solar panel enhanced by porous material and saline water preheating

2020 ◽  
Vol 277 ◽  
pp. 124175
Author(s):  
Ayman Refat Abd Elbar ◽  
Hamdy Hassan
Keyword(s):  
Porous Material ◽  
Environmental Assessment ◽  
Saline Water ◽  
Solar Panel ◽  
Solar Still

Experimental investigation of a pyramid type solar still with porous material: productivity assessment

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Naresh Yarramsetty ◽  
Naveen Sharma ◽  
Modumudi Lakshmi Narayana
Keyword(s):  
Porous Material ◽  
Saline Water ◽  
Base Plate ◽  
Hot Water ◽  
Feed Water ◽  
Solar Still ◽  
Absorber Plate ◽  
Content Type ◽  
Water Distillation ◽  
Clay Pots

Purpose This study aims to investigate the effect of porous material (clay pots) and it is facing on the productivity performance of a pyramid type solar still. The clay pots are placed in the basin facing up and facing down. The numbers of clay pots considered were 9 and 25, and its performance was compared with normal (0 clay pots) solar still. Design/methodology/approach The pyramid solar water distillation system has been designed, fabricated and tested under the actual environmental conditions of Kanchikacherla (16.6834 0N, 80.3904 0E), Andhra Pradesh, India. The solar still is used to produce the fresh water and hot water simultaneously from the brackish (i.e. containing dissolved salts) feed water for domestic applications. From open literature, it was established that the rate of evaporation is higher when the flowing water is held for a longer duration on the black color absorber plate, thereby leading to an increase in productivity of freshwater. Therefore, the pyramid solar still has been tested for smooth absorber plate and the absorber plate with porous heat storage material. Findings The porous material increases the production rate of freshwater compared to a base plate. However, the pyramid still with clay pots has higher productivity at a lower temperature because of the porosity effect. Originality/value The total dissolved solids, electrical conductivity and pH of the distilled water and the saline water have also been measured and compared.

Enhancement the Solar Still Performance Using Chimney Exhaust Gases

2021 ◽  
Author(s):  
Hamdy Hassan
Keyword(s):  
Mathematical Model ◽  
Theoretical Study ◽  
Saline Water ◽  
Kutta Method ◽  
Solar Still ◽  
Climate Conditions ◽  
Exhaust Gases ◽  
Runge Kutta Method ◽  
The Impact ◽  
The Mathematical Model

Abstract In this paper, a theoretical study is presented on enhancement of the solar still performance by using the exhaust gases passing inside a chimney under the still basin. The impact of the exhaust gases temperature on the solar still temperature, productivity, and efficiency are considered. The performance of solar still with chimney is compared with that of conventional solar still. The study is carried out under the hot and climate conditions of Upper Egypt. A complete transient mathematical model of the physical model including the solar still regions temperatures, productivity, and heat transfer between the solar still and the exhaust gases are constructed. The mathematical model is solved numerically by using fourth-order Runge-Kutta method and is programmed by using MATLAB. The mathematical model is validated using an experimental work. The results show that the solar still saline water temperature increases and productivity with using and rising the exhaust gases. Furthermore, the impact of using exhaust gases on the still performance in winter is greater than in summer. using chimney exhaust gases at 75 °C and 125 °C enhances the daily freshwater yield of the conventional still by more than three times and about six times in winter, respectively, and about two and half times and more than three times in summer, respectively.

Experimental studies on passive inclined solar panel absorber solar still

2019 ◽  
Vol 139 (6) ◽  
pp. 3649-3660 ◽  
Author(s):  
C. Sasikumar ◽  
A. Muthu Manokar ◽  
M. Vimala ◽  
D. Prince Winston ◽  
A. E. Kabeel ◽  
...  
Keyword(s):  
Experimental Studies ◽  
Solar Panel ◽  
Solar Still ◽  
Panel Absorber

scholarly journals Experimental investigation of an active inclined solar panel absorber solar still—energy and exergy analysis

2021 ◽  
Author(s):  
Mohamed Thalib Mohamed Rafeek ◽  
Vimala Muthu ◽  
Muthu Manokar Athikesavan ◽  
Ravishankar Sathyamurthy ◽  
Abd Elnaby Kabeel
Keyword(s):  
Experimental Investigation ◽  
Exergy Analysis ◽  
Solar Panel ◽  
Solar Still ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis ◽  
Panel Absorber

scholarly journals Factorial design of experiment (DOE) for modeling solar still parameters

2020 ◽  
Author(s):  
Malik Al-Abed Allah ◽  
Mohammad Abu Abbas ◽  
Moath Maqableh
Keyword(s):  
Solar Radiation ◽  
Water Depth ◽  
High Performance ◽  
Saline Water ◽  
Pure Water ◽  
Computing Time ◽  
Insulation Material ◽  
Solar Still ◽  
Effective Parameters ◽  
Basin Area

Abstract. Water scarcity is a major threat to the future due to the fact that the pollution rate of freshwater resources is getting increased rapidly. At the same time, the level of water usage is dramatically increased. Hence, to fulfill the water demand, converting the brackish, saline water into pure water is one of the viable solutions. Desalination using solar still is a simple technique among various techniques available for salinity removal. Researchers have consistently attempted to improve the performance of solar stills due to poor productivity. This article highlights various factors that have an impact on the performance of the solar still such as solar radiation, basin area, saline water depth, insulation material, the thickness of glass cover, and wind speed. In order to achieve high performance via optimization of the effected parameters required for solar still, the design of experiments (DOE) can determine the most effective parameters and eliminate the least important ones. Moreover, solar still is often complex and time-consuming due to the various parameters that must be taken into consideration. Furthermore, this research focuses on reducing the computing time and determines the most significant parameters of the solar still, such as Basin area, saline water depth, and solar radiation. The theoretical results demonstrate that the most important factor that affects solar still productivity is basin area, saline water depth, and solar radiation respectively. While the insulation thermal conductivity, ambient temperature, and glass thickness have no effect on the performance of still.

scholarly journals Influence of Nano Phase Change Materials on the Desalination Performance of Double Slope Solar Still

2021 ◽  
Vol 4 (2) ◽  
pp. 105
Author(s):  
T Sasilatha ◽  
Elavarasi R ◽  
V. Karthikeyan
Keyword(s):  
Thermal Properties ◽  
Phase Change ◽  
Phase Change Material ◽  
Phase Change Materials ◽  
Saline Water ◽  
Thermal Characteristics ◽  
Water Desalination ◽  
Insulation Material ◽  
Solar Still ◽  
Change Material

Solar still is the ancient low cost device to distillate the saline water. Paraffin is a kind of phase change material which has a thermal storage characteristic and it can absorb and release a large amount of latent heat during the phase transition process. Ethylene Glycol was used as a PCM to study the thermal characteristics of water and absorption rate. A Nano phase change material plays a vital role in solar energy conversion and is used to enhance the thermal conductivity behavior on thermal energy storage systems. Materials at the nanoscale have a larger surface area and it has higher thermal properties than the macro particles. Incorporating NPCM into basin material helps to improve the productivity and the evaporation rate. The performance of the single basin double slope solar still was higher than the single slope solar still. Despite significant efforts, there are some challenges, such as the thermo physical properties of basin material, flow rate, insulation material and thickness that must be overcome in order for this technique to be useful in practice. In this paper, a detailed comparison of the various solar stills, designs, fabrications and water production analyses are discussed. Hence it is confirmed that NPCM has a higher potential than PCM for saline water desalination processes. This study confirmed that the Paraffin composites are stable up to 160°C and it increases the efficiency due to increased thermal properties of NPCM.

scholarly journals Solar still for saline water desalination for low-income coastal areas

2019 ◽  
Vol 9 (4) ◽  
Author(s):  
Asiful Hoque ◽  
Ashif Hasan Abir ◽  
Kironmoy Paul Shourov
Keyword(s):  
Low Income ◽  
Saline Water ◽  
Coastal Areas ◽  
Water Desalination ◽  
Solar Still
Sign in / Sign up

Export Citation Format

Share Document