Monthly fresh water yield analysis of three solar desalination units a comparative study in the south Algeria climatic condition

Monthly fresh water yield analysis of three solar desalination units a comparative study in the south Algeria climatic condition

Houcine Moungar Ahmed Azzi  Youcef Sahli  Abdelkarim Haida 

Unité de recherche en énergies renouvelables en milieu saharienne (URERMS) Centre de développement des énergies renouvelables (CDER), Adrar 01000, Algérie

Unité de recherche en matériaux et énergies renouvelables (U.R.M.E.R) Université Abou Bekr Belkaïd, Tlemcen 13000, Algérie

Corresponding Author Email: 
houcinemgn@gmail.com
Page: 
1330-1335
|
DOI: 
https://doi.org/10.18280/ijht.360423
Received: 
22 July 2018
| |
Accepted: 
14 September 2018
| | Citation

OPEN ACCESS

Abstract: 

The Purpose of the paper is studied three types solar distillers, double slope with and without immersed fins and the simple solar distiller. A monthly comparative study is investigated experimentally, for a long period of the year. Further, the wind speed influence, the distance between fins, the fins height, the fins number and thickness, on the solar distiller’s production, is investigated theoretically. From the obtained results, it is noted that for the wind speed greater than 3.5 m/s, a decrease in the productivity is caused by the cooling of the outer walls, and this induces some heat losses, especially at the front and rear walls of the solar still. The distance between fins has no significant effect on the still productivity. Moreover, increasing the fins height, from 2 to 5 cm, increase the productivity; however, when the height changes from 6 to 8 cm, the distillate production goes down. A larger fins number lead for rise the produced distilled water amount. Therefore, one should use the maximum number of fins, while taking into consideration the feasibility of the assembly. Increasing the water mass makes the productivity to go down. The obtained results on June 11, 2016, show that the proposed system productivity was about 15 to 27 % higher than that of a simple one, under the following conditions, i.e. Mw = 42.61 kg, h1 = 3.6 cm, Vw = 3.5 m/s, lw = 5 cm and Nfins = 12. The total annual cost estimation proof clearly that the payback period is less than a years. As well as, it has been found that the increasing lifetime and the interest rate decreasing caused a decrease in the distilled water unit price.

Keywords: 

solar still, distilled water, shadow, immersed fins, solar irradiation flux

1. Introduction
2. Results
3. Cost Estimation
4. Conclusion
5. Acknowledgments
Nomenclature
  References

[1] Bechki D, Bouguettaia H, Blanco GJ, Babay S, Bouchekima B, Boughali S, Mahcene H. (2010). Effect of partial intermittent shading on the performance of a simple basin solarstill in south Algeria. Desalination 260: 65-69. https://doi.org/10.1016/j.desal.2010.04.066 

[2] Kabeel AE, Khalil A, Omara ZM, Younes MM. (2012). Theoretical and experimental parametric study of modified stepped solar still. Desalination 289: 12-20. https://doi.org/10.1016/j.desal.2011.12.023  

[3] Kabeel AE, Omara ZM, Essa FA. (2014). Enhancement of modified solar still integrated with external condenser using nanofluids: An experimental approach. Energy Convers. Manag 78: 493-498.

[4] Belhadj MM, Bouguettaia H, Marif Y, Zerrouki M. (2015). Numerical study of a double-slope solar still coupled with capillary film condenser in south Algeria. Energy Convers. Manag 94: 245–252

[5] Morad MM, El-Maghawry HAM, Wasfy KI. (2015). Improving the double slope solar still performance by using flat-plate solar collector and cooling glass cover. Desalination 373: 1-9.

[6] Mohammed B, Houcine M. (2013). Revue internationale D'héliotechnique. Effet Des Paramètres Géométriques d’un Réflecteur Plan Vertical Sur Les Performances d’un Distillateur Solaire Mono-Incline Couple A Un Condenseur Séparé 45: 14-20.

[7] Okeke CE, Egarievwe SU, Anmalu AOE. (1990). Effects of coal and charcoal on solar-still performance. Enqy 15(11): 1071-1073. https://doi.org/10.1016/0360-5442(90)90035-z

[8] Cooper PI. (1969). Digital simulation of transient solar still processes. Solar Energy 12: 313-331. https://doi.org/10.1016/0038-092x(69)90046-2  

[9] El-Sebaii AA, Ramadan MRI, Aboul-Enein S, El-Naggar M. (2015). Effect of fin parameters on single basin solar still performance. Desalination 365: 15-24.

[10] Rubio E., Fernández JL, Porta-Gándara MA. (2002). Modeling thermal asymmetries in double slope solar stills. Renew Energy 29(6): 895-906.

[11] Al-Hinai H, Al-Nassri MS, Jubran BA. (2002). Effect of climatic, design and operational parameters on the yield of a simple solar still. Energy Conversion and Management 43(13): 1639-1650. https://doi.org/10.1016/S0196-8904(01)00120-0

[12] Hassan ESF, Hosny HM. (2002). Thermal performance of a single-sloped basin still with an inherent built-in additional condenser. Desalination 142: 19-27. https://doi.org/10.1016/s0011-9164(01)00422-2 

[13] Al-Hayeka I, Badran O. (2004). The effect of using different designs of solar stills on water distillation. Desalination 169(2): 121-127.

[14] Voropoulos K, Mathioulakis E, Belessiotis V. (2004). A hybrid solar desalination and water heating system. Desalination 164(2): 189-195. https://doi.org/10.1016/s0011-9164(04)00177-8 

[15] Dev R, Tiwari GN. (2011). Characteristic equation of the inverted absorber solar still. Desalination 269: 67-77.

[16] Tanaka H, Nakatake Y. (2005). A simple and highly productive solar still: A vertical multiple-effect diffusion-type solar still coupled with a flat-plate mirror. Desalination 173(3): 287-300.

[17] Moungar H, Azzi A, Sahli Y, Hieda A. (2018). Double slope solar still with immersed fins: Theoretical and experimental study. U.P.B. Sci. Bull, Series C 80(1): 2286-3540.

[18] Shukla SK. (2007). Computer modeling of double slope solar still by using inner glass cover temperature. ISES Sol. World Congr 3: 2189-2200. https://doi.org/10.1007/978-3-540-75997-3_443   

[19] Arabi MA, Zurigat Y, Al-Hinai H, Al-Hiddabi S. (2002). Modeling and performance analysis of a solar desalination unit with double-glass cover cooling. Desalination 143(2): 173-182. https://doi.org/10.1016/s0011-9164(02)00238-2 

[20] El-Sebaii AA. (2000). Effect of wind speed on some designs of solar stills. Energy Convers. Manag. 41(6): 523-538.

[21] Moungar H, Azzi A, Sahli Y, Hieda A. (2017). Immersed fins influence on the double slope solar still production in south algeria climatic condition. Nternational Journal of Heat and Technology 35. http://dx.doi.org/10.18280/ijht.350444 

[22] Sathyamurthy R, Nagarajan PK, Edwin M, Madhu B, El-Agouz SA, Ahsan A, Mageshbabu D. (2016). Experimental investigations on conventional solar still with sand heat energy storage. International Journal of Heat and Technology 34(4): 597-603. https://doi.org/10.18280/ijht.340407

[23] Mesmoudi K, Meguellati K, Bournet PE. (2017). Thermal analysis of greenhouses installed under semi arid climate. International Journal of Heat and Technology 35(1): 474-486. https://doi.org/10.18280/ijht.350304

[24] Komolafe CA, Waheed MA. (2018). Design and fabrication of a forced convection solar dryer integrated with heat storage materials. ACSM 42(1): 23-39. https://doi.org/10.3166/acsm.42.23-39