Experimental investigation of a solar still equipped with an external heat storage system using phase change materials and heat pipes

Sustainable fresh water and power production by integrating PV panel in inclined solar still

The potable water shortage is a big problem facing the governments and decision-makers everywhere. Solar distiller is one of the techniques that participate in solving this problem. In this work, the impact of internal reflectors on the trays distiller performance was investigated. Besides, the influence of painting the surfaces of the solar still by the mixture of black paint and copper oxide (CuO) nanoparticles was studied. This is to enhance the heat transfer characteristics between the basin surfaces and water. Finally, the impact of using the paraffin wax mixed with CuO nanoparticles as a phase change material (PCM) on the performance of trays distiller was evaluated. Experimental results revealed that the total freshwater yield of the trays distiller was improved by 57, 14, 70.7, and 108% when using reflectors, CuO nanoparticles in paint, reflectors and nano-coating, and the collection of reflectors, nano coating, and PCM with CuO nanoparticles respectively over that of the reference still. Also, the total accumulated freshwater of the conventional and trays solar stills reached 2400 and 5000 mL/m² a day, respectively. Moreover, the thermal efficiency of the trays distiller with reflectors, nano-paint coating, and PCM-CuO nanoparticles mixture was 51.5%.

Improving the trays solar still performance using reflectors and phase change material with nanoparticles

This article reports about the recent reformation carried out in the solar still and humidification dehumidification desalination system using renewable energy sources for improving the fresh water production rate In solar still, the impact of integration of fins, usage of energy storing materials and wick materials, mixing of nanoparticles, agitation effect, transparent cover cooling, integration of thermoelectric cooler, multi effect of solar still, preheating with water heater and photovoltaic thermal collector, refine the condensing cover, operating with heat pump and refrigeration and integration with waste heat recovery are discussed The recent recast carried out in the packed bed humidification and bubble column desalination using solar energy and biomass energy is also reported It is observed that the solar still water output remarkably enhances with the integration of solar collectors, nanoparticles in water and cover cooling In HDH desalination, bubble column humidifier found to be better compared to the packed bed and other type of humidifiers Also it is noticed that the biomass based desalination systems are more suitable for the places with lower solar radiation and places with higher biomass sources

Recent fresh water augmentation techniques in solar still and HDH desalination – A review

Rotating-drum solar still with enhanced evaporation and condensation techniques: Comprehensive study

The performance parameters of the corrugated solar still (CrSS) and conventional solar still (CSS) are investigated
experimentally from another point of view. The authors' view concerns with using the double layer wick material
and also reflectors together inside the CrSS. In addition, the influence of saline water depth (1, 2, and 3 cm) on
CrSS performance was also investigated. Results indicated an enhancement in the total productivity and efficiency of the CrSS. During experimentations, the productivities of CrSS with wick and reflectors are about 145.5%
higher than the CSS, at a brine depth of 1 cm, and the daily efficiency of CrSS and CSS are approximately 59%
and 33%, respectively.

A.E. Kabeel

Papers

دراسة عملية لوحدة تقطير ذات ماص مموج مع خيش وعواكس / Experimental investigation of corrugated absorber solar still with wick and reflectors