Transient solidification and melting numerical simulation of lauric acid PCM filled stepped solar still basin used in water desalination process

Fayaz, Hussain and Shaik, Saboor and Khan, Sher Afghan and Huynh, Van Van and Jilte, Ravindra D. and Sundara, Vikram and Asif, Mohammad and Linul, Emanoil (2023) Transient solidification and melting numerical simulation of lauric acid PCM filled stepped solar still basin used in water desalination process. Case Studies in Thermal Engineering, 49. pp. 1-16. E-ISSN 2214-157X

Preview	PDF (SCOPUS) - Supplemental Material Download (197kB) | Preview
	PDF (Article) - Published Version Restricted to Repository staff only Download (6MB) | Request a copy

Abstract

It is crucial to produce potable water from salt water in arid places using a stepped solar still desalination process. This work presents lauric acid PCM's temperature distribution and phase transformation in an inclined stepped solar still desalination system. A second-order finite volume method is employed for discretizing the two-dimensional geometry. At the same time, energy, continuity, and momentum equations are solved and then coupled using the second-order PRESTO algorithm. The solidification and melting CFD models have been used to capture the melting stages of lauric acid PCM. Four steps with an inclination of 300 to ground and two different cases with saline water levels of 10 mm and 40 mm have been reported. The results reveal that the temperature and mass fraction of lauric acid PCM strongly depends on the saline water level at each step, the number of steps, the angle of inclination, and the location of the solar still step. The maximum percentage increase in PCM melting fraction is 50%, and a PCM temperature rise of 4oC is observed in the case of SWL-max compared to SWL-min. The total enthalpy of lauric acid PCM is increased by 30% for the SWL-max water level compared to the SWL-min water level.

Item Type:	Article (Journal)
Uncontrolled Keywords:	FVM; Inclined stepped solar still; Lauric acid; PCM; PRESTO; Solar desalination
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD172 Environmental pollution
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Dr. Sher Afghan Khan
Date Deposited:	11 Oct 2023 12:11
Last Modified:	11 Oct 2023 12:18
URI:	http://irep.iium.edu.my/id/eprint/106097

Actions (login required)

View Item