scholarly journals Pengaruh Bentuk Permukaan Absorber Pelat Terhadap Produktivitas dan Efisiensi Solar Still

2019 ◽  
Vol 2 (02) ◽  
pp. 25-30
Author(s):  
Purbo Suwandono ◽  
Nova Risdiyanto Ismail
Keyword(s):  
Sea Water ◽  
Surface Shape ◽  
Water Volume ◽  
Solar Still ◽  
Absorber Plate ◽  
Concrete Material ◽  
Solar Distillation ◽  
Cast Concrete ◽  
Increase Productivity ◽  
Conventional Models

Based on previous research, research on the development of solar distillation models is needed. Development of absorbent plates (absorber) using cast concrete material with fin, wave and flat models as a comparison. The fin and wave absorber plates can expand the surface, thereby increasing the intensity of solar radiation received by the absorber. Cast concrete is a porous material that can absorb sea water and make a thin layer, making it easier for the evaporation process and can improve solar distillation performance In this study using the experimental method. Solar still research by examining the surface of a cast concrete absorber plate. The surface of the absorbent plate used is the fin, wave and flat / conventional models. Cast concrete uses stone, iron sand, PCC cement and water. The study used variations in water volume The research resulted in the surface shape of the fin model can increase the productivity of fresh water and the efficiency of solar still using a plate absorbent fin model is higher than the wave and flat models. A smaller volume of sea water can increase productivity higher than a larger volume of sea water.

scholarly journals ANALISA BENTUK PERMUKAAN PELAT PENYERAP SPONGE TERHADAP KINERJA SOLAR STILL DOUBLE SLOPE TIPE V

2020 ◽  
Vol 3 (01) ◽  
pp. 17-22
Author(s):  
Alfin Amanda Alfin amanda ◽  
Nova R. Ismail ◽  
M. Agus Sahbana
Keyword(s):  
Solar Radiation ◽  
Sea Water ◽  
Experimental Tests ◽  
Raw Material ◽  
Surface Shape ◽  
Direct Solar Radiation ◽  
Solar Still ◽  
Absorber Plate ◽  
Type V ◽  
Flow Capillary

This study aims to determine the surface shape of the sponge absorbent plate to the performance of the solar still double slope type V. The surface shape of the sponge absorbent plate uses sponge models of triangles, fins, waves and flat with a thickness of 5 cm. experimental Tests methods use direct solar radiation and using sea water is used as raw material. The experiment produced 4,527 liters of condensate water with highest solar still efficiency of 50.14% using a sponge wave absorber plate with an area of 13,940.76 cm2. The Sea water disability to flow capillary to the surface of the absorbent plate affecting the performance of solar still.

Effect of absorber plate surface shape and glass cover inclination angle on the performance of a passive solar still

2019 ◽  
Vol 30 (6) ◽  
pp. 3183-3198 ◽  
Author(s):  
Hamid Reza Goshayeshi ◽  
Mohammad Reza Safaei
Keyword(s):  
Inclination Angle ◽  
Water Desalination ◽  
Surface Shape ◽  
Design Parameters ◽  
Solar Still ◽  
Absorber Plate ◽  
Daily Production ◽  
Content Type ◽  
Glass Cover ◽  
Inclination Angles

Purpose Solar-driven water desalination technologies are rapidly developing with various links to other renewable sources. However, the efficiency of such systems severely depends on the design parameters. This paper presents results from an investigation on the effect of the glass cover inclination angle on the performance of two stepped solar still geometries (flat and convex) and the amount of produced distilled water. Design Methodology Approach Studied inclination angles of 25°, 27.5°, 30°, 32.5° and 35° were chosen, while other design parameters were fixed. Findings The investigation showed that the unit with the convex absorber plate had higher average water daily production rate, compared to the output of the flat absorber plate unit. The results also depicted that the inclination angle of the still has a noticeable effect on the performance of solar stills. The value of the critical angle is 32.5°, and the higher inclination angle results in less heat transfer coefficient. This value can be used for design purposes and erases the typical assumption to use lower angles to optimize the productivity of the still. Practical Implications Finally, obtained data were used to correlate the Nusselt number for the flat and convex surfaces with different inclination angles of the glass cover. Originality Value The outcome of this investigation may find applications to develop highly efficient solar stills to secure more drinkable water in warm, dry lands.

scholarly journals ANALISA PENGARUH VARIASI BENTUK ABSORBER PADA ALAT DESTILASI AIR LAUT TERHADAP KENAIKAN SUHU AIR DALAM RUANG PEMANAS DAN JUMLAH PENGUAPAN AIR YANG DIHASILKAN

2013 ◽  
Vol 3 (2) ◽  
Author(s):  
Aldi Mukaddim ◽  
Made Wirawan ◽  
Ida Bagus Alit
Keyword(s):  
Sea Water ◽  
Human Life ◽  
Clean Water ◽  
Average Amount ◽  
Absorber Plate ◽  
Water Distillation ◽  
Solar Distillation ◽  
Water Problem ◽  
Small Wave ◽  
Plate Absorber

Clean water is a requirements of very important human life. Indonesia is a maritime country that has many islands surrounded by ocean, had a decreased clean water problem. One of the method to be used for obtain clean water is sea water distillation process. One of the most important tools is absorber distillation. occurs heat transfer from the absorber to the sea water causing, rising sea temperatures cause sea water to evaporate. The rising temperature of the sea water increases the amount of evaporation that occurs. The more the amount of evaporation generated will increase the number of fresh water produced. Increased seawater temperatures by increasing the temperature absorber, so it needs to be analyzed shape of the absorber which one can be produce more clean water than the others, a conclusion of the study indicated that solar distillation plat shape with a huge wave absorber produces more clean water than the others , the average amount of water that is more of 908 ml, compared with a small wave absorber plate only produce 764.4 ml  average a day and a flat plate absorber only produce 599 ml average a day, it is not independent of heat absorption by absorber, solar distillation plat shape with a huge wave absorber absorbs more heat than the other two absorber plates, this has resulted in solar distillation  shape with a huge wave  absorber plate  very well produce more water than the otehrs. 

Thermoeconomic analysis of solar distillation system with stepped-corrugated absorber plate

2020 ◽  
pp. 095440622094322
Author(s):  
Vikrant P Katekar ◽  
Sandip S Deshmukh
Keyword(s):  
Energy Efficiency ◽  
Thermal Performance ◽  
Saline Water ◽  
Average Energy ◽  
Cost Effective ◽  
Solar Still ◽  
Absorber Plate ◽  
Improve Energy Efficiency ◽  
Solar Distillation ◽  
Efficiency And Productivity

Solar still is a cost-effective and environment-friendly device to convert saline water into potable by employing solar energy in developing countries; however, it has an inferior thermal performance. This paper presents an attempt to improve energy efficiency and productivity of solar still by improving the design of the absorber plate. Modified solar still has been tested with a stepped-corrugated absorber plate. During the experimentation, it is found that the thermal performance of modified solar still is superior to conventional solar still. The average basin saline water temperature and the temperature difference between saline water and condenser glass cover are higher for stepped-corrugated solar still by 19.67 and 105.75%, respectively, as compared with conventional solar still. The average energy efficiency, exergy efficiency and productivity are found to be 259.61, 418.61 and 147.93% higher for stepped-corrugated solar still. Economic analysis indicates that the cost of distil water production is approximately Rs. 1.73 (0.023 $) per litre, and the payback period is 12 months, with carbon credits earned are approximately Rs. 11,998 (157.76 $).

Solar Water Distillation Using Two Different Phase Change Materials

2014 ◽  
Vol 592-594 ◽  
pp. 2409-2415 ◽  
Author(s):  
S. Naga Sarada ◽  
Banoth Hima Bindu ◽  
Sri Rama R. Devi ◽  
Ravi Gugulothu
Keyword(s):  
Solar Energy ◽  
Phase Change ◽  
Fresh Water ◽  
Alternative Energy ◽  
Potable Water ◽  
Sea Water ◽  
Underground Water ◽  
Solar Still ◽  
Water Distillation ◽  
The World

In recent years with the exacerbation of energy shortage, water crisis increases around the world. With the continuous increase in the level of greenhouse gas emissions, the use of various sources of renewable energy is increasingly becoming important for sustainable development. Due to the rising oil price and environmental regulations, the demand of utilizing alternative power sources increased dramatically. Alternative energy and its applications have been heavily studied for the last decade. Energy and water are essential for mankind that influences the socioeconomic development of any nation. Pure water resources become more and more scarce every day as rivers, lakes wells and even seawater pollution rapidly increases. Solar energy is one promising solution to secure power and potable water to future generation. The process of distillation can be used to obtain fresh water from salty, brackish or contaminated water. Water is available in different forms such as sea water, underground water, surface water and atmospheric water. Clean water is essential for good health. The search for sustainable energy resources has emerged as one of the most significant and universal concerns in the 21st century. Solar energy conversion offers a cost effective alternative to our traditional usages. Solar energy is a promising candidate in many applications. Among the alternative energy sources used for electricity production, wind and solar energy systems have become more attractive in recent years. For areas where electricity was not available, stand alone wind and solar systems have been increasingly used. The shortage of drinking water in many countries throughout the world is a serious problem. Humankind has depended for ages on river, sea water and underground water reservoirs for its fresh water needs. But these sources do not always prove to be useful due to the presence of excessive salinity in the water. To resolve this crisis, different methods of solar desalination have been used in many countries. Distillation is a well known thermal process for water purification, most importantly, water desalination. Most of the conventional water distillation processes are highly energy consuming and require fossil fuels as well as electric power for their operation. Single basin solar still is a popular solar device used for converting available brackish or waste water into potable water. Because of its lower productivity, it is not popularly used. Numbers of works are under taken to improve the productivity and efficiency of the solar still. There are large numbers of PCMs that melt and solidify at wide range of temperatures, making them attractive in a number of applications. PCMs have been widely used in latent heat thermal storage systems for heat pumps, solar engineering and spacecraft thermal control applications. The use of PCMs for heating and cooling applications for buildings has been investigated within the past decade. The experimental results computed in the field of water distillation process using solar energy in the presence of energy storage materials sodium sulphate and sodium acetate are discussed in this paper. Keywords: solar energy, saline water, distillation, phase change material.

Effect of fins and silicon dioxide nanoparticle black paint on the absorber plate for augmenting yield from tubular solar still

2021 ◽  
Author(s):  
Rajendra Prasad Arani ◽  
Ravishankar Sathyamurthy ◽  
Ali Chamkha ◽  
Abd Elnaby Kabeel ◽  
Mageshbabu Deverajan ◽  
...  
Keyword(s):  
Silicon Dioxide ◽  
Solar Still ◽  
Absorber Plate ◽  
Black Paint ◽  
Silicon Dioxide Nanoparticle

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.

scholarly journals A conceptual model of flow to the Waikoropupu Springs, NW Nelson, New Zealand, based on hydrometric and tracer (<sup>18</sup>O, Cl,<sup>3</sup>H and CFC) evidence

2008 ◽  
Vol 12 (1) ◽  
pp. 1-19 ◽  
Author(s):  
M. K. Stewart ◽  
J. T. Thomas
Keyword(s):  
New Zealand ◽  
Flow Model ◽  
Sea Water ◽  
Quantitative Description ◽  
Water Volume ◽  
Deep Aquifer ◽  
Submarine Springs ◽  
Recharge Sources ◽  
Flow Systems ◽  
New Evidence

Abstract. The Waikoropupu Springs, a large karst resurgence 4 km from the coast, are supplied by the Arthur Marble Aquifer (AMA) underlying the Takaka Valley, South Island, New Zealand. New evidence on the recharge sources in the catchment, combined with previous results, is used to establish a new recharge model for the AMA. Combined with the oxygen-18 mass balance, this yields a quantitative description of the inputs and outputs to the aquifer. It shows that the Main Spring is sourced mainly from the karst uplands (74%), with smaller contributions from the Upper Takaka River (18%) and valley rainfall (8%), while Fish Creek Spring contains mostly Upper Takaka River water (50%). In addition, much of the Upper Takaka River contribution to the aquifer (58%) bypasses the springs and is discharged offshore via submarine springs. The chemical concentrations of the Main Spring show input of 0.5% of sea water on average, which varies with flow and derives from the deep aquifer. Tritium measurements spanning 40 yr, and CFC-11 measurements, give a mean residence time of 8 yr for the Main Spring water using the preferred two-component model. Our conceptual flow model, based on the flow, chloride, oxygen-18 and age measurements, invokes two different flow systems with different recharge sources to explain the flow within the AMA. One system contains deeply penetrating old water with mean age 10.2 yr and water volume 3 km3, recharged from the karst uplands. The other, at shallow levels below the valley floor, has much younger water with mean age 1.2 yr and water volume 0.4 km3, recharged by Upper Takaka River and valley rainfall. The flow systems contribute in different proportions to the Main Spring, Fish Creek Springs and offshore springs. Their very different behaviours, despite being in the same aquifer, are attributed to the presence of a diorite intrusion below the surface of the lower valley, which diverts the deep flow towards the Waikoropupu Springs and allows much of the shallow flow to pass over the intrusive and escape via submarine springs.

Effect of water depth on a novel absorber plate of pyramid solar still coated with TiO2 nano black paint

2019 ◽  
Vol 213 ◽  
pp. 185-191 ◽  
Author(s):  
A.E. Kabeel ◽  
Ravishankar Sathyamurthy ◽  
Swellam W. Sharshir ◽  
A. Muthumanokar ◽  
Hitesh Panchal ◽  
...  
Keyword(s):  
Water Depth ◽  
Solar Still ◽  
Absorber Plate ◽  
Black Paint ◽  
Effect Of Water

scholarly journals A Review of New Solar Still Design Comprising a Five-Sided Glass Cover and Equipped with an External Tank for PCM

2021 ◽  
Vol 877 (1) ◽  
pp. 012038
Author(s):  
Abbas Sahi Shareef ◽  
Hayder Jabbar Kurji ◽  
Hassan Abdulameer Matrood
Keyword(s):  
Melting Point ◽  
Phase Change ◽  
Solar Collector ◽  
Phase Change Materials ◽  
Review Paper ◽  
Pure Water ◽  
Solar Still ◽  
Glass Cover ◽  
Solar Distillation ◽  
Change Material

Abstract Various human activities have led to the consumption of large quantities of pure water, which has led researchers to find efficient and economical methods for desalinating seawater and water containing impurities. In this review paper, solar energy where it is permanent, abundant and environmentally friendly, to produce pure water was discussed using a new solar distillation device, representing the paper’s novelty. The distillation was designed and used in the way led to increase efficiency and improve productivity by adding a solar collector to the system and equipped with a tank containing phase change material (PCM). It has a low melting point and can change the phase by absorbing the system’s latent heat to maintain the system’s temperature. Which contributes to increasing the distillation period even after sunset, thus increasing the daily productivity of freshwater. Using phase change materials will increase distillation hours from (3-4) hours after sunset, increasing the amount of production between (75 - 90) %.

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