Solar still distillate enhancement techniques and recent developments

Das, Dwijen; Bordoloi, Urbashi; Kalita, Pankaj; Boehm, Robert F.; Kamble, Akash Dilip

doi:10.1016/j.gsd.2020.100360

Cited by 60 publications

(11 citation statements)

References 141 publications

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“…The first group includes sensible heat storage materials such as Stones, Metal Scraps, Concrete, Sand, etc., while the second group comprises the latent heat storage kind of materials that mainly include phase change materials (PCM) for instance inorganic salts, polymers, paraffin wax, etc. [17].…”

Section: Solar Still With Thermal Energy Storagementioning

confidence: 99%

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Solar Still Productivity Improvement Techniques and Recent Advancements: Review Study

Faisal

Hameed

2021

Al-Furat Journal of Innovations in Mechanical and Sustainable Energy Engineering

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The growing demand for freshwater is a challenging task facing human society due to the rapid rise of the global population. Solar distillation emerged as an economical, environmentally friendly practical technology to produce freshwater. Solar still is a proven technology to produce clean water and removing dissolved and solid impurities as well as chemical hazardous, organic bacteria, and non-organic contaminants. Rural and remote regions that suffer from impure water can beneficiate this technique. However, the daily productivity of single slope solar still SSSS is questionable. Hence, several researchers focused on enhancing the productivity and efficiency of SSSS through adopting a wide range of modifications. This review reports various modification techniques that have been investigated to improve SSSS efficiency and clean water productivity. It mainly considered modifying the absorption plate, thermal energy storage, utilization of reflectors, adopting nanotechnology, integrated condenser, cover cooling, Humidification-dehumidification HDH, and Basin water preheating technique.

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Section: Solar Still With Thermal Energy Storagementioning

confidence: 99%

“…The system efficiency noted as 79.4% efficient. Nevertheless, thermoelectric devices are considered to of high relative cost [17]. Several researchers proposed and evaluated various improvements to enhance the performance of SSs.…”

Section: Glass Cover Coolingmentioning

confidence: 99%

Solar Still Productivity Improvement Techniques and Recent Advancements: Review Study

Faisal

Hameed

2021

Al-Furat Journal of Innovations in Mechanical and Sustainable Energy Engineering

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“…[4]. Modifikasi bentuk absorber dengan groove, fin, baffles dan partisi dapat meningkatkan temperatur air [5]. Hasil penelitian Nagarajan [6] menunjukkan penggunaan baffles dapat meningkatkan produksi 1.68 kali dibanding tanpa baffles.…”

Section: Gambar 1 Distilasi Air Energi Surya Jenis Bakunclassified

Peningkatan Efisiensi Distilasi Air Energi Surya Menggunakan Pengapung

Sambada

Ananta²

2020

JEM

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The joint for two different materials (AA5052 and AA6061) can be done by the Dissimilar Friction Stir Welding (DFSW) process. Therefore, this study was conducted to analyze the mechanical properties of dissimilar welding joints. In this study the DFSW process uses a tool with a shoulder Ø 17.8 mm and a cylindrical pin Ø 5 mm. FSW blocking is done on conventional milling machines with 1300 rpm, 1950 rpm and 2850 rpm tool rotation variations, while the welding speed variations are 43 mm / min, 130 mm / min and 240 mm / min. The results of mechanical properties testing showed the highest hardness value obtained was 55.3 HBN at 1300 rpm with 240 mm / min feeding, the highest tensile strength occurred for 1300 rpm and 240 mm / min feeding at 123.51 MPa. The fracture of the tensile test results generally occurs in the HAZ area and the AA5052 base metal Nugget. Investigation results show that the DFSW connection of aluminum alloy material AA 6061 and AA 5052 adapt is well connected, but in terms of general strength the tensile strength of the joint (HAZ and Nugget) is smaller than the tensile strength of the base metal. This DFSW connection adaptation is applied to connections that do not accept load or tensile strength due to the load received by the connection not to exceed the maximum tensile strength of base metal AA 5052

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“…SS research is usually carried out to increase efficiency [2]. The critical thing of SS design is that it can minimize heat losses and maximize the trapped heat energy [3].…”

Section: Introductionmentioning

confidence: 99%

“…The parameters that affect the amount of heat energy trapped are the heating time of the water in the absorber and the temperature of the inlet water [4,5]. Modifying the shape of the absorber on inclined SS with grooves, fins, baffles, and partitions can increase the heating time of water in the absorber so that the water temperature increases [3].…”

Section: Introductionmentioning

confidence: 99%

Increasing inlet water temperature using condensation heat to improve solar distillation efficiency

Sambada¹,

Soeparman²,

Wijayanti³

et al. 2020

EEJET

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Increasing the temperature of inlet water is one way to increase solar distillation efficiency. Heat recovery using double glazing is a more straightforward way to raise the temperature of inlet water. In previous studies, the incoming water temperature was raised using additional equipment such as a solar water heater collector or utilizing the heat of wastewater from another water distillation system. The earlier studies' technique caused solar water distillation to be complicated, and the manufacturing cost was expensive. Heat recovery is a process of utilizing heat condensation of water vapor to increase the inlet water temperature. In conventional solar distillation, condensing heat is not used and wasted into the environment. Double glass is two glasses arranged in parallel, one on the top of the other. The distance between the glasses is 2 mm. The bottom glass is a 1 m 2 distillation cover glass. Water flows between the bottom glass and the top glass before entering the distillation model. The inlet water receives heat condensation so that the temperature rises. The increase in temperature causes heat loss to decrease and leads to efficiency improvement. This study aims to reveal the effect of heat recovery using double glazing to improve solar distillation efficiency. The study was conducted with laboratory experiments and simulations. The thickness of the bottom and top glass and the top glass area influence the heat recovery process. This study used two variations of glass thickness, namely 3 mm and 5 mm. The area of the top glass was varied by 0.1, 0.5, 0.7, and 1.0 m 2. The maximum efficiency improvement compared to distillation without heat recovery obtained is 39.6 % with a glass thickness of 3 mm and 51.0 % with a glass thickness of 5 mm achieved in the variation of the top glass area of 0.1 m 2

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Solar still distillate enhancement techniques and recent developments

Cited by 60 publications

References 141 publications

Solar Still Productivity Improvement Techniques and Recent Advancements: Review Study

Solar Still Productivity Improvement Techniques and Recent Advancements: Review Study

Peningkatan Efisiensi Distilasi Air Energi Surya Menggunakan Pengapung

Increasing inlet water temperature using condensation heat to improve solar distillation efficiency

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