Productivity enhancement of solar still by using porous absorber with bubble-wrap insulation

Arunkumar, T.; Kabeel, A.E.; Raj, Kaiwalya; Denkenberger, David; Sathyamurthy, Ravishankar; Ragupathy, P.; Velraj, R.

doi:10.1016/j.jclepro.2018.05.199

Cited by 90 publications

(19 citation statements)

References 60 publications

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“…Most of the solar still employing porous materials are known as wick-type still. Arunkumar et al [59] introduced carbon impregnated foam in a still and found a 35% increase in the productivity. Nafey et al [60] reported a productivity increase of 15% and 40% at a brine depth of 3 cm and 6 cm, respectively by the use of a floating black perforated plate of aluminum.…”

Section: Use Of Porous Materialsmentioning

confidence: 99%

A concise review on performance improvement of solar stills

2020

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Conversion of saline water into freshwater by the use of solar thermal energy is known as solar desalination and the devices used for carrying out solar desalination are known as solar stills. The major problem faced by the solar stills is that they have low productivity and therefore unable to meet the high demand for freshwater. Over the years, several researchers have worked on improving the productivity of solar stills. Preheating of feed water, forced convection and energy storage are some of the methods used to increase their efficiencies. Some of these methods are discussed in the present review. The main aim of the current review is to provide the researchers with an idea to select the appropriate method for the improvement in the performance of currently available solar stills.

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Section: Use Of Porous Materialsmentioning

confidence: 99%

A concise review on performance improvement of solar stills

2020

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“…The NCAPs are arranged randomly at the bottom of the SSSS. The walls and bottom of the SSSS were sealed with bubble wrap (BW) to reduce heat loss to the surroundings [8]. A measuring jar was used to collect the condensed water from the distiller in every 30 min.…”

Section: Experimental Setup and Proceduresmentioning

confidence: 99%

Effect of CuO, MoO3 and ZnO nanomaterial coated absorbers for clean water production

et al. 2020

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Solar energy is one of the most powerful sources for many sustainable applications. Recently, efficient water distillation has attracted significant attention. The fresh water productivity depends on how efficiently the system harvests the incoming solar energy and converts it into useful heat. In the present work, nano-coated absorber plates (NCAPs) were examined in the single slope solar still (SSSS) for clean water production. The NCAPs were CuO, MoO 3 and ZnO, respectively. The CuO-NCAP was fabricated with the thermal evaporation method while the radio-frequency Magnetron Sputtering technique was used to fabricate the MoO 3 and ZnO NCAPs. The attained particle size of the CuO, MoO 3 and ZnO are 30-34 nm, 25-30 nm and 30-35 nm, respectively. The sphere (CuO), plate (MoO 3), and wedge (ZnO) like morphologies are identified with field emission-scanning electron microscope. All the NCAPs and reference solar still were tested under the same environmental conditions. The climatic parameters (solar influx, ambient temperature and wind) and SSSS's temperatures including water temperature (T w), internal air temperature (T int-air), inner cover (T ic), outer cover (T oc), and absorber plate temperature (T NCAP) were measured at 30 min intervals with the help of Type-J thermocouples. Herein, we present an evaporative heat transfer (h ew), efficiency, and cost analysis of the SSSS with CuO, MoO 3 and ZnO-NCAPs. Three different feed waters fetched from the surface well water, hill side well water and hill side pond water were used in this work for evaporation. The result reveals that the evaporation of conventional single slope solar still, CuO, MoO 3 and ZnO NCAPs were 2.1 l/m 2 day, 2.9 l/m 2 day, 2.7 l/m 2 day and 2.6 l/m 2 day, respectively.

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“…Other studies were based on improving the productivity of the single slope by several simple and cheap methods . Several theoretical and experimental studies in the literature show that the geometric shape itself of the distiller also influences efficiency . As the increase in the water temperature of the basin raises the productivity many studies are based on this effect, for that, they use dispute materials immersed in the water, some use storage metallic materials, and others use chemicals or natural storage materials .…”

Section: Introductionmentioning

confidence: 99%

Exploitation of an insulated air chamber as a glazed cover of a conventional solar still

Khechekhouche

Benhaoua

Manokar

et al. 2019

Heat Trans. Asian Res.

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The countries of North Africa suffer from a serious problem that affects a large number of people. The trouble is the provisioning of drinking water. Several techniques are used but solar distillation; which seems to be an appropriate, economical, and easy solution. Conventional solar distiller is used in the Saharan areas but the yield of this device is low, that's why there are several studies that are focused on improving this distiller. The technique of double glazing gives an increase in the efficiency of a solar collector; hence, the idea of using the same technique in a conventional solar distiller. Two covers of glasses separated by 1 cm, isolated from the four sides was put on a distiller of dimensions 0.5 × 0.5 m. The results show that this technique minimizes the distiller's yield by 56.52% when compared with the conventional solar distiller. K E Y W O R D Sdrinking water, efficiency, glazing, solar distillation, zone isolated

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Productivity enhancement of solar still by using porous absorber with bubble-wrap insulation

Cited by 90 publications

References 60 publications

A concise review on performance improvement of solar stills

A concise review on performance improvement of solar stills

Effect of CuO, MoO3 and ZnO nanomaterial coated absorbers for clean water production

Exploitation of an insulated air chamber as a glazed cover of a conventional solar still

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