Performance study of an innovative heating technique for a modified solar still

Document Type : Article


Mechanical Power Engineering Dept., Faculty of Engineering, Tanta University, Egypt


An experimental comparison of water productivity between a conventional single slope, solar still and a modified one is introduced in this work. The modified solar still is incorporated with a new heating technique on the saline water surface using finned cover with holes. These fins are used to increase the heat transfer area between the cover and saline water meanwhile, holes are used to allow evaporated water to go through. These experiments are held under the outdoor conditions of Tanta, Egypt. The performance of the two solar stills has been tested at a water depth of 0.05 m and a quantity of saline water of 50 L. The results indicated that the productivity of water per square meter per day for the modified design still is higher than the conventional still by about 30.6%.


Main Subjects


1. Arunkumar, T., Jayaprakash, R., Denkenberger, D.,
Amimul Ahsan, Okundamiya, M.S., Sanjay Kumar,
Hiroshi Tanaka, Aybarg, H.S \An experimental study
on a hemispherical solar still", Desalination, 286, pp.
342-348 (2012).
2. Ahsan, A., Imteaz, M., Rahman, A., Yusuf, B., and
Fukuharad, T. \Design, fabrication and performance
analysis of an improved solar still", Desalination, 292,
pp. 105-112 (2012).
3. Rajamanickam, M. and Ragupathy, A. \In
uence of
water depth on internal heat and mass transfer in a
double slope solar still", Energy Procedia, 14, pp. 1701-
1708 (2012).
4. Panchal, H. and Shah, P.K. \Investigation on solar
stills having
oating plates", International Journal of
Energy and Environmental Engineering, 3(1), pp. 1-5
5. Omara, Z., Hamed, M.H. and Kabeel, A. \Performance
of nned and corrugated absorbers solar stills under
Egyptian conditions", Desalination, 277(1), pp. 281-
287 (2011).
6. Taamneh, Y. and Taamneh, M.M. \Performance of
pyramid-shaped solar still: Experimental study", Desalination,
291, pp. 65-68 (2012).
7. Abdul-Wahab, S.A. and Al-Hatmi, Y.Y. \Study of the
performance of the inverted solar still integrated with
a refrigeration cycle", Procedia Engineering, 33, pp.
424-434 (2012).
8. Dashtban, M. and Tabrizi, F.F. \Thermal analysis of
a weir-type cascade solar still integrated with PCM
storage", Desalination, 279(1), pp. 415-422 (2011).
9. Kabeel, A., Kabeel, A.E., Khalil, A., Omara, Z.M.,
and Younes, M.M. \Theoretical and experimental
parametric study of modi ed stepped solar still",
Desalination, 289, pp. 12-20 (2012).
10. Monowe, P., Masale, M., Nijegorodov, N., and
Vasilenko, V. \A portable single-basin solar still with
an external re
ecting booster and an outside condenser",
Desalination, 280(1), pp. 332-338 (2011).
11. Tanaka, H. \A theoretical analysis of basin type
solar still with
at plate external bottom re
Desalination, 279(1), pp. 243-251 (2011).
12. Tanaka, H. \Tilted wick solar still with
at plate
bottom re
ector", Desalination, 273(2), pp. 405-413
13. Velmurugan, V., Gopalakrishnan, M., Raghu, R.,
and Srithar, K. \Single basin solar still with n
for enhancing productivity", Energy Conversion and
Management, 49(10), pp. 2602-2608 (2008).
14. El-Sebaii, A.A. and El-Naggar, M. \Year round performance
and cost analysis of a nned single basin solar
still", Applied Thermal Engineering, 110, pp. 787-794
A.E. Kabeel et al./Scientia Iranica, Transactions B: Mechanical Engineering 25 (2018)