Rancang Bangun Simulator Sistem Monitoring Temperatur Baterai Kendaraan Listrik dengan Variasi Jarak Antar Sel Berbasis Loop Heat Pipe

Nur Imani, Anggun Fajariyah (2026) Rancang Bangun Simulator Sistem Monitoring Temperatur Baterai Kendaraan Listrik dengan Variasi Jarak Antar Sel Berbasis Loop Heat Pipe. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pengelolaan temperatur baterai berperan penting terhadap kinerja dan keselamatan kendaraan listrik karena temperatur operasi harus terkendali dan terdistribusi merata antar sel. Proyek Akhir ini merancang sistem monitoring temperatur baterai kendaraan listrik dan mengevaluasi pengaruh variasi jarak antar sel terhadap karakteristik temperatur pada kondisi tanpa pendingin (baseline) dan dengan pendingin pasif Loop Heat Pipe (LHP). LHP menggunakan etanol sebagai fluida kerja utama untuk pengujian variasi jarak antar sel, sedangkan aseton digunakan untuk mengevaluasi karakteristik operasi LHP pada temperatur yang lebih tinggi. Objek uji berupa enam simulator sel baterai aluminium yang disusun secara horizontal dengan jarak antar sel 13, 15, 18, 20, dan 25 mm. Temperatur diukur pada enam titik (T1–T6) menggunakan sensor RTD PT100 yang terintegrasi dengan Human Machine Interface (HMI). Pengujian dilakukan pada temperatur operasi 50 °C dan 70 °C, kemudian dianalisis menggunakan temperatur maksimum (Tmax) sebagai indikator hotspot dan ΔT = Tmax−Tmin sebagai indikator keseragaman distribusi temperatur. Hasil menunjukkan bahwa pada 50 °C, LHP dengan fluida kerja etanol menurunkan Tmax pada 4 dari 5 variasi jarak sebesar 0,66–4,97 °C, serta memberikan peningkatan pemerataan temperatur terbesar pada jarak 13 mm dengan penurunan ΔT sebesar 3,55 °C. Pada 70 °C, LHP dengan etanol menurunkan Tmax pada seluruh variasi jarak sebesar 0,67–3,73 °C dan menurunkan ΔT secara dominan pada jarak 13–18 mm hingga 7,42 °C, meskipun pada jarak 20 mm ΔT tidak mengalami penurunan. Pengujian menggunakan fluida kerja aseton menunjukkan bahwa LHP tetap mampu beroperasi pada temperatur yang lebih tinggi sehingga memperluas rentang kondisi operasi sistem. Secara keseluruhan, sistem monitoring yang dikembangkan bekerja dengan baik, sedangkan LHP berbasis etanol efektif mengurangi hotspot dan meningkatkan keseragaman distribusi temperatur pada variasi jarak antar sel tertentu.
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Battery temperature management plays a crucial role in the performance and safety of electric vehicles, as the operating temperature must remain within an appropriate range and be uniformly distributed across battery cells. This final project develops an electric vehicle battery temperature monitoring system and evaluates the effect of inter-cell spacing variations on temperature characteristics under both baseline (without cooling) and passive cooling conditions using a Loop Heat Pipe (LHP). Ethanol was employed as the primary working fluid for evaluating the effect of inter-cell spacing, while acetone was utilized to investigate the operational characteristics of the LHP at higher operating temperatures. The experimental setup consisted of six aluminum battery cell simulators arranged horizontally with inter-cell spacings of 13, 15, 18, 20, and 25 mm. Temperature was measured at six locations (T1–T6) using RTD PT100 sensors integrated with a Human Machine Interface (HMI). Experiments were conducted at operating temperatures of 50 °C and 70 °C. The results were analyzed using the maximum temperature (Tmax) as the hotspot indicator and ΔT = Tmax − Tmin as the temperature uniformity indicator. At 50 °C, the ethanol-based LHP reduced Tmax in four out of five inter-cell spacing configurations by 0.66–4.97 °C and achieved the greatest improvement in temperature uniformity at the 13 mm spacing, reducing ΔT by 3.55 °C. At 70 °C, the ethanol-based LHP reduced Tmax across all spacing configurations by 0.67–3.73 °C and significantly decreased ΔT for the 13–18 mm spacing configurations by up to 7.42 °C, although no reduction in ΔT was observed at the 20 mm spacing. Experimental results using acetone as the working fluid demonstrated that the LHP remained capable of operating at higher temperatures, thereby extending the system's operating temperature range. Overall, the developed temperature monitoring system operated reliably, while the ethanol-based LHP effectively mitigated hotspot formation and improved temperature uniformity for specific inter-cell spacing configurations.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Loop Heat Pipe (LHP), Battery Thermal Management System (BTMS), etanol, aseton, monitoring temperatur multi-titik, distribusi temperatur, RTD PT100, Human Machine Interface (HMI), pendingin pasif. ============================================================ Loop Heat Pipe (LHP), Battery Thermal Management System (BTMS), ethanol, acetone, multi-point temperature monitoring, temperature distribution, RTD PT100, Human Machine Interface (HMI), passive cooling.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK201 Electric Power Transmission T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1010 Electric power system stability. Electric filters, Passive. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2921 Lithium cells. T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL220 Electric vehicles and their batteries, etc.
Divisions:	Faculty of Vocational > Instrumentation Engineering
Depositing User:	Anggun Fajariyah Nur Imani
Date Deposited:	31 Jul 2026 08:31
Last Modified:	31 Jul 2026 08:31
URI:	http://repository.its.ac.id/id/eprint/141002

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