Analisis Numerik Perbandingan Perpindahan Panas Dengan Variasi Fin Width Pada Sistem Pendingin PEMFC Berbasis Zigzag Multi-Fin Dan Sinusoidal Fins

Hidayat, Ach. Riyan (2026) Analisis Numerik Perbandingan Perpindahan Panas Dengan Variasi Fin Width Pada Sistem Pendingin PEMFC Berbasis Zigzag Multi-Fin Dan Sinusoidal Fins. Other thesis, Institut Teknologi Sepuluh Nopember.

	Text 2039221082-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (5MB) | Request a copy
	Text 2039221082-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (5MB) | Request a copy

Abstract

Proton Exchange Membrane Fuel Cell (PEMFC) menghasilkan panas selama proses kerja, sehingga diperlukan sistem pendingin yang mampu menjaga temperatur tetap stabil. Penelitian ini bertujuan untuk menganalisis pengaruh variasi inlet velocity magnitude dan perubahan geometri saluran pendingin terhadap performa perpindahan panas pada pelat pendingin PEMFC. Geometri yang dianalisis terdiri atas geometri eksisting berbentuk zigzag dan geometri sinusoidal dengan variasi fin width 1 mm dan 1,2 mm. Simulasi dilakukan menggunakan ANSYS Fluent 2019 R3 dengan fluida pendingin udara, variasi inlet velocity magnitude 0,6; 1,0; 1,6; 2,2; dan 3,0 m/s, serta jumlah iterasi 600. Hasil validasi menunjukkan bahwa body sizing 0,485 mm menghasilkan nilai error terendah sebesar 2,85%, sehingga digunakan sebagai acuan mesh pada simulasi berikutnya. Hasil simulasi menunjukkan bahwa peningkatan inlet velocity magnitude menyebabkan outlet temperature dan wall fluid temperature cenderung menurun, sedangkan pressure drop, outlet velocity, heat transfer coefficient, Q thermal, dan Q convection meningkat. Pada inlet velocity magnitude 3,0 m/s, geometri sinusoidal fin width 1 mm menghasilkan Q thermal tertinggi sebesar 4,970 W, Q convection tertinggi sebesar 2,0839 W, thermal resistance terendah sebesar 4,960 K/W, dan efisiensi pendinginan tertinggi sebesar 35,06%. Selain itu, pressure drop geometri sinusoidal Fin width 1 mm sebesar 298,186 Pa, lebih rendah dibandingkan geometri eksisting sebesar 879,320 Pa dan sinusoidal fin width 1,2 mm sebesar 364,781 Pa. Berdasarkan hasil tersebut, geometri sinusoidal fin width 1 mm memiliki performa pendinginan paling baik karena mampu meningkatkan perpindahan panas dengan hambatan aliran yang lebih rendah.
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Proton Exchange Membrane Fuel Cell (PEMFC) produces heat during operation; therefore, an effective cooling system is required to maintain a stable operating temperature. This study aims to analyze the effect of inlet velocity magnitude and cooling channel geometry variation on the heat transfer performance of a PEMFC cooling plate. The analyzed geometries consist of an existing zigzag geometry and sinusoidal geometries with Fin width variations of 1 mm and 1.2 mm. The simulation was performed using ANSYS Fluent 2019 R3 with air as the cooling fluid, inlet velocity magnitude variations of 0.6, 1.0, 1.6, 2.2, and 3.0 m/s, and 600 iterations. The validation result showed that a body sizing of 0.485 mm produced the lowest error of 2.85%, so it was used as the mesh reference for the next simulations. The simulation results showed that increasing the inlet velocity magnitude decreased the outlet temperature and wall fluid temperature, while the pressure drop, outlet velocity, heat transfer coefficient, Q thermal, and Q convection increased. At an inlet velocity magnitude of 3.0 m/s, the sinusoidal geometry with a 1 mm Fin width produced the highest Q thermal of 4.970 W, the highest Q convection of 2.0839 W, the lowest thermal resistance of 4.960 K/W, and the highest cooling efficiency of 35.06%. In addition, the pressure drop of the sinusoidal geometry with a 1 mm Fin width was 298.186 Pa, which was lower than the existing geometry at 879.320 Pa and the sinusoidal geometry with a 1.2 mm fin width at 364.781 Pa. Based on these results, the sinusoidal geometry with a 1 mm Fin width provides the best cooling performance because it improves heat transfer while maintaining a lower flow resistance.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	PEMFC, pelat pendingin, sinusoidal, CFD, perpindahan panas, efisiensi pendinginan. ================================================================================================================ PEMFC, cooling plate, sinusoidal, CFD, heat transfer, cooling efficiency.
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ263 Heat exchangers
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering (D4)
Depositing User:	ACH. RIYAN HIDAYAT
Date Deposited:	29 Jul 2026 06:11
Last Modified:	29 Jul 2026 06:11
URI:	http://repository.its.ac.id/id/eprint/139259

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