Rifqi, Muhammad (2026) Analisis Pengaruh Konfigurasi Heating Coil dan Kedalaman Air Terhadap Efisiensi Sistem serta Laju Produktivitas Distilat pada Proses Desalinasi Air Laut Berbasis Solar Still. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Keterbatasan akses air bersih di wilayah pesisir mendorong pengembangan teknologi desalinasi berbasis energi matahari. Salah satu teknologi yang banyak dikembangkan adalah solar still, namun produktivitas distilat dan efisiensi sistem yang dihasilkan masih relatif rendah akibat keterbatasan perpindahan panas pada basin. Penelitian ini bertujuan menganalisis pengaruh konfigurasi heating coil dan kedalaman air basin terhadap distribusi temperatur, perpindahan panas, laju produktivitas distilat, dan efisiensi sistem pada solar still tipe double-slope yang terintegrasi dengan solar air collector. Penelitian dilakukan melalui pengujian eksperimen pada konfigurasi heating coil 8 pipa dengan variasi kedalaman air 4 cm, 5 cm, 6 cm, dan 7 cm, serta simulasi Computational Fluid Dynamics (CFD) untuk menganalisis pengaruh variasi geometri dan jumlah heating coil terhadap karakteristik termal sistem. Hasil eksperimen menunjukkan bahwa kedalaman air 4 cm menghasilkan temperatur rata-rata air tertinggi sebesar 46,68°C, laju produktivitas distilat sebesar 620 mL/m²·hari, dan efisiensi sistem sebesar 22,96%, yang merupakan nilai tertinggi dibandingkan variasi kedalaman lainnya. Sementara itu, hasil simulasi menunjukkan bahwa peningkatan jumlah pipa dan penambahan header mampu meningkatkan luas permukaan perpindahan panas serta menghasilkan distribusi temperatur yang lebih homogen. Konfigurasi 4 inlet dengan cabang 10 pipa menghasilkan temperatur rata-rata air tertinggi sebesar 55,70°C, laju produktivitas distilat sebesar 1.502,86 mL/m²·hari, dan efisiensi sistem sebesar 30,42%, sehingga menjadi konfigurasi yang paling efektif dalam mendistribusikan energi panas pada basin. Hasil penelitian menunjukkan bahwa geometri, jumlah pipa heating coil dan kedalaman air yang lebih rendah mampu meningkatkan distribusi temperatur, laju perpindahan panas, produktivitas distilat, dan efisiensi sistem solar still secara signifikan. Oleh karena itu, konfigurasi 4 inlet dengan cabang 10 pipa dengan kedalaman air 4 cm direkomendasikan sebagai konfigurasi optimum untuk meningkatkan kinerja sistem desalinasi air laut berbasis solar still.
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Limited access to clean water in coastal areas has encouraged the development of solar energy-based desalination technologies. One of the most widely developed technologies is the solar still; however, its distillate productivity and system efficiency remain relatively low due to limited heat transfer within the basin. This study aims to analyze the effects of heating coil configuration and basin water depth on temperature distribution, heat transfer, distillate productivity, and system efficiency in a double-slope solar still integrated with a solar air collector. The study was conducted through experimental testing using an 8-pipe heating coil configuration with water depths of 4 cm, 5 cm, 6 cm, and 7 cm, as well as Computational Fluid Dynamics (CFD) simulations to investigate the effects of heating coil geometry and pipe quantity on the thermal characteristics of the system. Experimental results showed that a water depth of 4 cm produced the highest average water temperature of 46,68°C, a distillate productivity of 620 mL/m²·day, and a system efficiency of 22,96%, outperforming the other water depth variations. Meanwhile, the simulation results indicated that increasing the number of pipes and incorporating a header configuration enhanced the heat transfer surface area and improved temperature distribution uniformity. The configuration with four inlets and ten pipe branches achieved the highest average water temperature of 55,70°C, a distillate productivity of 1.502,86 mL/m²·day, and a system efficiency of 30,42%, making it the most effective configuration for distributing thermal energy within the basin. The results demonstrate that optimizing the heating coil geometry and reducing basin water depth can significantly improve temperature distribution, heat transfer rate, distillate productivity, and overall solar still performance. Therefore, the four-inlet, ten-pipe branch configuration combined with a 4 cm water depth is recommended as the optimum configuration for enhancing the performance of solar still-based seawater desalination systems.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Solar Still, Heating Coil, Efisiensi Sistem, System efficiency. |
| Subjects: | Q Science > QC Physics > QC320 Heat transfer T Technology > TD Environmental technology. Sanitary engineering > TD433 Water treatment plants T Technology > TD Environmental technology. Sanitary engineering > TD479.3 Saline water conversion T Technology > TJ Mechanical engineering and machinery > TJ808 Renewable energy sources. Energy harvesting. T Technology > TJ Mechanical engineering and machinery > TJ935 Pipe--Fluid dynamics. Tubes--Fluid dynamics |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Muhammad Rifqi |
| Date Deposited: | 02 Aug 2026 19:20 |
| Last Modified: | 02 Aug 2026 19:20 |
| URI: | http://repository.its.ac.id/id/eprint/141785 |
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