Experimental performance, exergy, and economic analysis of an oval tubular solar still integrated with nano-enhanced phase change material.

Wael I A Aly, Mostafa A Tolba, Mahmoud Abdelmagied

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Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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3 authors.

Wael I A AlyDepartment of Refrigeration and A/C Dpt., Faculty of Technology and Education, Capital University (Formerly Helwan), 11282, Cairo, Egypt.

Mostafa A TolbaDepartment of Refrigeration and A/C Dpt., Faculty of Technology and Education, Capital University (Formerly Helwan), 11282, Cairo, Egypt.

Mahmoud AbdelmagiedDepartment of Refrigeration and A/C Dpt., Faculty of Technology and Education, Capital University (Formerly Helwan), 11282, Cairo, Egypt. m.abdelmagied@hotmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Freshwater scarcity remains a major challenge in arid and coastal regions, and conventional solar stills often suffer from low productivity, limited thermal efficiency, and high operational costs, highlighting the need for improved designs. This work examines a new form of the oval tubular solar stills, OTSS. This study focuses on enhancing the daily, nighttime, and overall (diurnal) productivity of freshwater by employing advanced materials. In the present investigation, paraffin wax (PW) was used as a phase change material (PCM), while nano-alumina-enhanced paraffin wax (NAPW) was applied to improve the thermal conductivity of PW. The OTSS is a simply distinguish design, lower cost, and high production rate of desalinated water. The OTSS is used with PW, without PW, and with NAPW. The experiments were conducted under Cairo, Egypt climatic conditions (Latitude 30.10 N longitude 31.29E) with varying basin water depths (0.5-2 cm) and Al

Indexed as

Exergy efficiencyNano alumina Paraffin waxOval tubular solar stillParaffin waxProductivity enhancementSolar desalination

Identifiers

PMID41927693

DOI10.1038/s41598-026-43990-y

PMCPMC13049101

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.