The performance of a modified solar still using hot air injection and PCM

Kabeel, A.E.; Abdelgaied, Mohamed; Mahgoub, Mohamed Mahmoud Ahmed

doi:10.1016/j.desal.2015.11.007

Cited by 139 publications

(26 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The use of single slope distillate is the traditional method of obtaining drinking water by using solar energy to heat the sink water, causing it to vaporize and then condense it through the glass cover 6‐10 . Several previous studies have been conducted, all of which aim to improve the performance of solar stills by making adjustments to the design of stills, 11‐15 use the nanofluids, 16 use the fins, 17‐19 use the PCM, 20‐23 and use the hybrid storage materials 24‐26 …”

Section: Introductionmentioning

confidence: 99%

Productivity enhancement of traditional solar still by using sandbags of El Oued, Algeria

et al. 2020

Self Cite

View full text Add to dashboard Cite

This manuscript aims to study the experimental analysis of solar still with sandbags as energy storage materials. To achieve this idea, 25 bags filled with El Oued sand was fixed inside a square basin vertically and distributed regularly, this is called the modified solar still with sandbags (MSS-SB). The sand used in this study is very effective than many store mediums considered within many previous works such as glass balls, sponges, phosphate, yellow sand, black sand, and black gravel. This fact is due to its components characterized by high thermal conductivity. By using the Fourier-transform infrared spectroscopy, X-ray diffraction, and X-ray fluorescence, it has been confirmed that the chemical properties of El Oued sand are composed mainly by 97.6% quartz (SiO 2) and 0.56% calcite (CaCO 3) and very low concentrations of some other oxides. To obtain the influences of the sandbags utilized in this study, the performance of MSS-SB and traditional solar still (TSS) was tested at the same climatic conditions of the southeast of Algeria throughout 24 hours. Experimental results revealed that the overall cumulative distillate yield of TSS reached 3.76 L/m 2 /d, while for utilization the sandbags for MSS-SB increase the cumulative distillate yield to 5.06 L/m 2 /d, representing 34.57% Abbreviations: MSS-SB, modified solar still with sandbags; TSS, traditional solar still. improvement in cumulative distillate yield. Also, the daily efficiency of TSS 33.1%, while for utilization the sandbags for MSS-SB increases the daily efficiency to 44.63%, representing 34.83% improvement in daily efficiency. K E Y W O R D S cotton bags, El Oued sands, energy storage, productivity, quartz (SiO 2), solar energy 1 | INTRODUCTION The demand for distilled water increases every day due to the increase in the world's population and its need for drinking water. Also, the use of this distilled water in all industrial developments, especially medical, became widespread. Many researchers are working on technologies to improve the yield of drinking water. The use of solar energy is the most common technology. 1-5 The use of single slope distillate is the traditional method of obtaining drinking water by using solar energy to heat the sink water, causing it to vaporize and then condense it through the glass cover. 6-10 Several previous studies have been conducted, all of which aim to improve the performance of solar stills by making adjustments to the design of stills, 11-15 use the nanofluids, 16 use the fins, 17-19 use the PCM, 20-23 and use the hybrid storage materials. 24-26 Energy efficiency was analyzed from several systems that used absorbent materials such as glass balls, black gravel, dyes, rubber, wicks, sand, and saw dust, as thermal storage materials. In previous studies, Samuel et al 27 experimentally used the encapsulation technique in one solar slope still to store thermal energy. The researchers concluded that this technology improved the yield by 2.5 times the traditional solar still (TSS). Badran 28 found that adding spong...

show abstract

Section: Introductionmentioning

confidence: 99%

Productivity enhancement of traditional solar still by using sandbags of El Oued, Algeria

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Therefore, extensive efforts have been made through numerous investigations to improve the solar still efficiency. To enhance the solar still productivity, Kabeel et al studied the effect of hot air injection. The experimental results show that the still productivity reached 9.36 kg m −2 day −1 for the modified solar still, while this value is only 4.5 kg m −2 day −1 for the conventional solar still.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigation of a modified solar basin using as a bubbler humidifier in humidification–dehumidification desalination system

Halima¹,

Frikha

Gabsi

2018

Env Prog and Sustain Energy

View full text Add to dashboard Cite

This article presents a theoretical study and experimental validation of a new solar bubbler basin using as a humidifier in humidification–dehumidification desalination system. The prototype consists mainly of a simple solar basin, filled with water, through which air is forced to travel upwards in form of bubbles. A detailed mass and heat transfer analysis was elaborated to model the dynamic behavior of the new humidifier. It is through a comparison with the experimental data that the validity of the proposed model was tested. The simulation results have revealed that the humidification efficiency and the amount of evaporated water can reach 98% and 6 kg m−2 day−1, during the spring equinox. The effects of some operational parameters (water depth, inlet air temperature, and flow rate) were investigated. It was found that the inlet air temperature and flow rate have a significant effect on the water content difference in the humidifier. © 2018 American Institute of Chemical Engineers Environ Prog, 38: 518–526, 2019

show abstract

“…In the existing solar desalination process, PCM is mainly used to recover excess solar thermal energy [1][2][3][4], and there are few processes using PCM for recovering latent heat of wet air. Paraffin wax is a commonly used PCM.…”

Section: Introductionmentioning

confidence: 99%

Study on Active and Passive Integration Humidification–Dehumidification Solar Desalination

Zhang¹,

Jiang²,

Zhang³

2018

Kms

View full text Add to dashboard Cite

A humidification-dehumidification (HDH) solar desalination process with active and passive air circulation is proposed, in which the phase change material (PCM) is used to recover the latent heat of vapor condensation to increase the fresh water production. The experiments show that the cost of fresh water is 23.47 Yuan/t, the gain output ratio of the unit is 13.37, and the water production is increased by 84.4% compared with the dehumidifier without using PCM. The heat transfer between the heat pipe and the PCM (I) (paraffin) and the high thermal conductivity PCM (II) are tested and simulated.

show abstract

The performance of a modified solar still using hot air injection and PCM

Cited by 139 publications

References 18 publications

Productivity enhancement of traditional solar still by using sandbags of El Oued, Algeria

Productivity enhancement of traditional solar still by using sandbags of El Oued, Algeria

Numerical and experimental investigation of a modified solar basin using as a bubbler humidifier in humidification–dehumidification desalination system

Study on Active and Passive Integration Humidification–Dehumidification Solar Desalination

Contact Info

Product

Resources

About