Experimental investigation of solar sill by incorporating sensible and latent heat storage materials

Authors

  • Rajan Chaudhary PG Scholar, Mechanical Engineering Department, Bhopal Institute of Technology and Science, Bhopal Madhya Pradesh, India
  • Rajkumar Bishnoi Assistant Professor, Mechanical Engineering Department, Bhopal Institute of Technology and Science, Bhopal Madhya Pradesh, India

DOI:

https://doi.org/10.37591/jorachv.v10i1.1407

Keywords:

Double slope solar still, PCM, Thermal energy storage, Heat transfer coefficients, Energy, Exergy, Efficiency, Experimental

Abstract

The main obstacle to human life in the modern age was the lack of access to and improper distribution of potable water on earth. Despite the fact that demand for potable water is skyrocketing due to population growth and industrial exploitation, supply levels are essentially steady. Due to its simplicity in construction, ease of maintenance, techno-economic advantages, and eco-friendliness, solar is still regarded as one of the best possible options to transform brackish water into drinkable water. The main disadvantage of solar still being used as a regular source of fresh water was its lower production. Therefore, the most effective method for producing potable water from brackish water is solar still coupled with steel wool fibre which enhances the surface area of water resulting in higher evaporative rate of heat transfer and phase change material (PCM) as latent heat storage material. In the current experimental study, two similar type of double slope solar still have been attempted to be built. Two solar stills were examined both with and without thermal storage materials. To increase the distillate production of the solar still, the commonly accessible and less expensive energy storage materials Pebbles, Steel wool fibre (SWF) as sensible heat storage materials, and lauric acid as a phase transition material were added to the basin liner. In order to improve the performance of the stills, distillate yield in these solar stills is studied individually, and the study is also advanced by merging thermal storage media with them. In the current study, it was determined and compared the temperature of various solar still components, fresh water production, energy and exergy efficiency, and exergy fractions of the basic still and still with energy storage materials. The data collected through the experimental work in real-time solar conditions are interpreted and calculations are made for obtaining the necessary results. The result reveals that that daily values of 1.325, 1.78, 1.865, and 2.255 kg/m2, the daily accumulative yield of the various solar still cases was arranged in descending order as CDSSS, still-1, still-3, and still-2. In comparison to CDSSS, still-1, and still-3, the daily accumulative yield of still-2 was increased by 70.2, 26.68%, and 21%, respectively. The conventional and modified examples' daily average energy efficiencies were given as follows: CDSSS (16.6%), still-1 (20.8%), still-2 (23.81%), and still-3 (21.03%). For CDSSS, still-1, still-2, and still-3, respectively, the daily exergy efficiency obtained by the conventional and modified examples was 3.9%, 5.3%, 8.23%, and 8.95%.

References

Gleick, P. H. The World’s Water 2008–2009 the Biennal Report on Freshwater Resources; Island Press, 2008.

El-Sebaii, A. A. Thermal Performance of a Triple-Basin Solar Still. Desalination 2005, 174 (1), 23–37. DOI: 10.1016/j.desal.2004.08.038

Yousef, M. S.; Hassan, H. Energetic and Exergetic Performance Assessment of the Inclusion of Phase Change Materials (PCM) in a Solar Distillation System. Energy Convers. Manag. 2019, 179, 349–361. DOI: 10.1016/j.enconman.2018.10.078

Shanmugan, S.; Janarthanan, B.; Chandrasekaran, J. Performance of Single-Slope Single-Basin Solar Still with Sensible Heat Storage Materials. Desalin. Water Treat. 2012, 41 (1–3), 195–203. DOI: 10.1080/19443994.2012.664714

Elashmawy, M. Improving the Performance of a Parabolic Concentrator Solar Tracking-Tubular Solar Still (PCST-TSS) Using Gravel as a Sensible Heat Storage Material. Desalination 2020, 473. DOI: 10.1016/j.desal.2019.114182, 114182

Dumka, P.; Sharma, A.; Kushwah, Y.; Raghav, A. S.; Mishra, D. R. Performance Evaluation of Single Slope Solar Still Augmented with Sand-Filled Cotton Bags. J. Energy Storage 2019, 25. DOI: 10.1016/j.est.2019.100888, 100888

Mousa, H.; Gujarathi, A. M. Modeling and Analysis the Productivity of Solar Desalination Units with Phase Change Materials. Renew. Energy 2016, 95, 225–232. DOI: 10.1016/j.renene.2016.04.013

Kateshia, J.; Lakhera, V. J. Analysis of Solar Still Integrated with Phase Change Material and Pin Fins as Absorbing Material. J. Energy Storage 2021, 35. DOI: 10.1016/j.est.2021.102292, 102292

Sonker, V. K.; Chakraborty, J. P.; Sarkar, A.; Singh, R. K. Solar Distillation Using Three Different Phase Change Materials Stored in a Copper Cylinder. Energy Rep. 2019, 5, 1532–1542. DOI: 10.1016/j.egyr.2019.10.023

Kline, S., and F. McClintock. 1953. “Describing Uncertainties in Single-Sample Experiments.” Mechanics in Engineering.

Kumar, S.; Tiwari, G. N. Analytical Expression for Instantaneous Exergy Efficiency of a Shallow Basin Passive Solar Still. Int. J. Therm. Sci. 2011, 50 (12), 2543–2549. DOI: 10.1016/j.ijthermalsci.2011.06.015

Sharshir, S. W.; Elsheikh, A. H.; Peng, G.; Yang, N.; El-Samadony, M. O. A.; Kabeel, A. E. Thermal Performance and Exergy Analysis of Solar Stills – A Review. Renew. Sustain. Energy Rev. 2017, 73, 521–544. DOI: 10.1016/j.rser.2017.01.156

Downloads

Published

2023-07-06

Issue

Vol. 10 No. 1 (2023)

Section

Articles

License

Declaration and Copyright Transfer Form

(to be completed by authors)

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

  • I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.
  • I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).
  • I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.
  •  I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. ________________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.