TY - JOUR
T1 - Optimizing pyramid distiller performance with rotational corrugated cylinders, reflectors, and PCM-fan integration for enhanced freshwater production
AU - Saad abdullah, Abdekader
AU - Aljaghtham, Mutabe
AU - Omara, Z. M.
AU - Essa, Fadl A.
N1 - Publisher Copyright:
© 2025 Elsevier B.V.
PY - 2025/12/19
Y1 - 2025/12/19
N2 - This work investigated the influence of various amendments on a pyramid solar still with rotating cylinders (RCPSS) and rotating corrugated cylinders (RCCPSS). We compared distillate yield from the RCPSS with a baseline design (PSS) to assess the effectiveness of each modification. Notably, the optimal cylinder velocity for maximizing productivity was 0.5 revolutions per minute. The study explored incorporating reflectors, silver nanoparticle-infused phase change material (PCM-Ag) composites within the cylinders, and a vapor-withdrawing fan with an external condenser. The RCPSS significantly outperformed the PSS, producing 7450 mL/m2 of freshwater daily compared to 3050 mL/m2, representing a 144 % increase in distillate. Additionally, reflectors and PCM-Ag composites further enhanced distillate yield by 218 % and 261 %, respectively. However, the most optimal configuration involved combining a fan and reflectors. This setup yielded the highest distillate production (11750 mL/m2), a 279 % increase over PSS, and achieved a thermal efficiency of 69 %. Additionally, the rotating corrugated cylinders with PSS further enhanced distillate yield by 174 % over PSS. Finally, the freshwater production cost was lower for the RCPSS with a fan ($0.0124/L) compared to the PSS ($0.02/L).
AB - This work investigated the influence of various amendments on a pyramid solar still with rotating cylinders (RCPSS) and rotating corrugated cylinders (RCCPSS). We compared distillate yield from the RCPSS with a baseline design (PSS) to assess the effectiveness of each modification. Notably, the optimal cylinder velocity for maximizing productivity was 0.5 revolutions per minute. The study explored incorporating reflectors, silver nanoparticle-infused phase change material (PCM-Ag) composites within the cylinders, and a vapor-withdrawing fan with an external condenser. The RCPSS significantly outperformed the PSS, producing 7450 mL/m2 of freshwater daily compared to 3050 mL/m2, representing a 144 % increase in distillate. Additionally, reflectors and PCM-Ag composites further enhanced distillate yield by 218 % and 261 %, respectively. However, the most optimal configuration involved combining a fan and reflectors. This setup yielded the highest distillate production (11750 mL/m2), a 279 % increase over PSS, and achieved a thermal efficiency of 69 %. Additionally, the rotating corrugated cylinders with PSS further enhanced distillate yield by 174 % over PSS. Finally, the freshwater production cost was lower for the RCPSS with a fan ($0.0124/L) compared to the PSS ($0.02/L).
KW - Corrugated
KW - PCM-Nano
KW - Pyramid distiller
KW - Rotational cylinders
KW - Solar desalination
KW - Sustainability
UR - http://www.scopus.com/inward/record.url?scp=105010507323&partnerID=8YFLogxK
U2 - 10.1016/j.seppur.2025.134317
DO - 10.1016/j.seppur.2025.134317
M3 - Article
AN - SCOPUS:105010507323
SN - 1383-5866
VL - 377
JO - Separation and Purification Technology
JF - Separation and Purification Technology
M1 - 134317
ER -
