Sistem Manajemen Pendinginan Superkapasitor Menggunakan Material Komposit pada Phase Change Material Dan Graphene Aerogel

Therzaghy, Muhammad Harry (2025) Sistem Manajemen Pendinginan Superkapasitor Menggunakan Material Komposit pada Phase Change Material Dan Graphene Aerogel. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sistem penyimpanan energi berbasis superkapasitor menawarkan power density tinggi tetapi rentan terhadap kenaikan suhu akibat pemanasan Joule. Penelitian ini merancang dan mengevaluasi sistem manajemen termal pasif-terbantu untuk superkapasitor Maxwell BCAP1500 dengan melapisi silinder sel menggunakan komposit Phase Change Material (PCM) dan mensirkulasikan udara berkecepatan 2 m/s dan 3 m/s. Variasi material meliputi GA 1 %, GA 2 %, Lauric Acid (LAG-1, LAG-2) serta Conch-Shell 1 % dan 2 %; sedangkan ketebalan lapisan diuji pada 3 mm dan 9 mm dengan arus 70 A dan 80 A. Validasi terhadap data eksperimen Voicu dkk, menghasilkan error sebesar 1,4 %. Simulasi mengindikasikan bahwa kombinasi lapisan Conch-Shell 1 % setebal 3 mm dan aliran udara 3 m/s menurunkan suhu puncak superkapasitor hingga ± 11 °C dibanding tanpa PCM. Secara umum, lapisan 3 mm lebih efektif dibanding 9 mm karena resistansi konduksi lebih rendah, sehingga seluruh volume PCM berpartisipasi lebih cepat dalam penyerapan kalor sensibel. Peningkatan kecepatan udara dari 2 m/s ke 3 m/s memperbaiki koefisien perpindahan panas konveksi ≈ 20 %, memperkuat sinergi PCM–udara dalam membuang panas. Hasil memperlihatkan bahwa konduktivitas termal tinggi pada Conch-Shell dan ketebalan tipis merupakan faktor kunci untuk mengoptimalkan kinerja pendinginan.
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Supercapacitor-based energy storage systems offers high power density but are prone to temperature rise caused by Joule heating and electrochemical processes. This study designs and evaluates a passive-assisted thermal management system for a Maxwell BCAP1500 supercapacitor by coating the cylindrical cell with a Phase Change Material (PCM) composite and circulating air at 2 m s⁻¹ and 3 m s⁻¹. Material variants include GA 1 %, GA 2 %, Lauric Acid–GA (LAG-1, LAG-2), and Conch-Shell 1 % and 2 %, while coating thicknesses of 3 mm and 9 mm were tested under load currents of 70 A and 80 A. Simulations show that a 3 mm Conch-Shell 1 % layer combined with 3 m s⁻¹ airflow lowers the peak supercapacitor temperature by ≈ 11 °C relative to the no-PCM case. Overall, the 3 mm layer outperforms the 9 mm layer due to lower conduction resistance, allowing the entire PCM volume to absorb sensible heat more rapidly. Increasing air velocity from 2 m s⁻¹ to 3 m s⁻¹ boosts the convective heat-transfer coefficient by ≈ 20 %, enhancing the synergy between PCM and airflow in heat dissipation. The results indicate that the high thermal conductivity of Conch-Shell and thin coating thickness are key to optimizing cooling performance, offering practical guidance for designing supercapacitor packs in electric vehicles and other high-power applications

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Kata kunci: Forced Convection, Graphene Aerogel, Komposit Conch-Shell, Manajemen Termal, Phase Change Material, Superkapasitor ============================================================ Keywords: Conch-Shell composite, forced convection, graphene aerogel, phase change material, supercapacitor, thermal management
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2941 Storage batteries T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872.C65 Supercapacitors.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	Muhammad Harry Therzaghy
Date Deposited:	28 Jul 2025 03:09
Last Modified:	28 Jul 2025 03:09
URI:	http://repository.its.ac.id/id/eprint/122431

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