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<p>This study intends to boost the hemispherical solar distiller’s thermal efficiency. The performance of the hemispherical solar distiller (HSD) is evaluated for various basin liners, including flat, corrugated, curved, and square basin liners, in conjunction with a reversed solar collector. The first distiller has a flat absorber (MHSD-F-ISC) and an inverted solar collector. The second distiller has a corrugated absorber (MHSD-Co-ISC) and an inverted solar collector. The third distiller features a curved shape (half-circle) absorber (MHSD-Cu-ISC) combined with an inverted solar collector, the fourth distiller includes a square shape absorber (MHSD-S-ISC) incorporated with a reversed solar collector, and the fifth distiller is simple (SHSD). According to the experimental findings, using a reversed solar collector along with flat, corrugated, curved, and square liners increases the productivity of the modified hemispherical solar distiller (MHSD) by 43.14%, 71.57%, 63.73%, and 54.90%, respectively. The daily freshwater productivities of the MHSD-Co-ISC and simple hemispherical solar distiller (SHSD), in the best case scenario (MHSD with corrugated liner combined with reversed solar collector), are 8750 and 5100&#xa0;mL&#xa0;m<sup>−2</sup>&#xa0;day<sup>−1</sup>, respectively. In addition, the thermal efficiency of MHSD, which was obtained in the best-case scenario, was calculated to be 70.89%. Furthermore, the SHSD's efficiency was 41.67%.</p>

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Thermo-economical assessment for a hemispherical distiller employing various types of basin liners and an inverted solar collector

  • 期刊论文

  • 发表日期：

    2025年9月9日

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  • Mohammed El Hadi Attia,
  • Moataz M. Abdel-Aziz,
  • Abd Elnaby Kabeel,
  • Wael M. El-Maghlany,
  • Mohamed Fayed

摘要

This study intends to boost the hemispherical solar distiller’s thermal efficiency. The performance of the hemispherical solar distiller (HSD) is evaluated for various basin liners, including flat, corrugated, curved, and square basin liners, in conjunction with a reversed solar collector. The first distiller has a flat absorber (MHSD-F-ISC) and an inverted solar collector. The second distiller has a corrugated absorber (MHSD-Co-ISC) and an inverted solar collector. The third distiller features a curved shape (half-circle) absorber (MHSD-Cu-ISC) combined with an inverted solar collector, the fourth distiller includes a square shape absorber (MHSD-S-ISC) incorporated with a reversed solar collector, and the fifth distiller is simple (SHSD). According to the experimental findings, using a reversed solar collector along with flat, corrugated, curved, and square liners increases the productivity of the modified hemispherical solar distiller (MHSD) by 43.14%, 71.57%, 63.73%, and 54.90%, respectively. The daily freshwater productivities of the MHSD-Co-ISC and simple hemispherical solar distiller (SHSD), in the best case scenario (MHSD with corrugated liner combined with reversed solar collector), are 8750 and 5100 mL m−2 day−1, respectively. In addition, the thermal efficiency of MHSD, which was obtained in the best-case scenario, was calculated to be 70.89%. Furthermore, the SHSD's efficiency was 41.67%.