Experiment of Lithium-Ion Battery Cell Pack Immersion Cooling with Paraffin Wax Based Phase Change Material (PCM) Coolant

Kirana, Yogyandini Mega (2024) Experiment of Lithium-Ion Battery Cell Pack Immersion Cooling with Paraffin Wax Based Phase Change Material (PCM) Coolant. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kapal sebagai alat transportasi sangat bergantung pada bahan bakar fosil yang berkontribusi terhadap emisi dan polusi. Oleh karena itu, untuk menciptakan lingkungan pelayaran yang lebih bersih, Organisasi Maritim Internasional (IMO) bertujuan untuk mengurangi minimal 50% Gas Rumah Kaca (GRK) pada tahun 2050 dibandingkan dengan tingkat pada tahun 2008 dengan mengadopsi resolusi MEPC.304(72). Untuk mencapai hal ini, pendekatan dilakukan terhadap berbagai sumber energi alternatif, seperti baterai. Ada beberapa tantangan dalam menggunakan baterai sebagai sumber energi, seperti keamanan, keandalan, masa pakai baterai, dan waktu pengisian daya. Performa baterai, terutama kapasitasnya, dipengaruhi oleh suhu pengoperasiannya. Oleh karena itu, untuk memastikan baterai bekerja dalam kondisi optimal, diperlukan Sistem Manajemen Termal Baterai (BTMS). Penelitian ini bertujuan untuk mengetahui kinerja pendinginan bahan berubah fasa (PCM) berbasis lilin parafin melalui BTMS pendinginan perendaman terhadap baterai LiFePo4 selama proses pengosongan pada laju pengosongan 1C, 2C, dan 3C dengan tinggi perendaman 30%, 50% dan 90% pada sudut kemiringan 15° dan 35° yang menyimulasikan kondisi pitching dan rolling kapal. Ditemukan bahwa tingkat perendaman cairan pendingin, dalam penelitian ini sebesar 30%, 50% dan 90% dari tinggi baterai, mempunyai pengaruh yang signifikan terhadap suhu baterai. Mengosongkan baterai tanpa cairan pendingin dapat membuat suhu baterai mencapai 45,38° C. Sementara itu, mengosongkan baterai saat direndam dalam PCM lilin parafin, dapat menurunkan suhu sekitar 6-7° C pada perendaman 30%, 8-10° C pada perendaman 50%, dan 11-12°C pada perendaman 90%. Sedangkan untuk suhu bagian baterai yang direndam dan tidak direndam dalam PCM, baik pada sudut 15° maupun 35°, hanya terdapat sedikit perbedaan suhu, umumnya perbedaan suhu lebih kecil dari 1° C. Oleh karena itu, PCM lilin parafin dinilai dapat mempertahankan suhu pengoperasian baterai yang ideal bahkan pada laju perendaman terendah yang diuji dan pada sudut kemiringan 15° dan 35°.
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Ship as a form of transportation highly relies on fossil fuel which contributes toward emission and pollution. Therefore, to create a cleaner shipping environment, the International Maritime Organization (IMO) aims to reduce a minimum of 50% of Green House Gas (GHG) by 2050 compared to the level in 2008 by adopting the resolution of MEPC.304(72). To achieve this, approaches are made towards various alternative sources of energy, such as batteries. There are several challenges in using battery as source of energy, such as safety, reliability, cycle life, and charging time. Battery’s performance, especially capacity, is affected by its operating temperature. Therefore, to make sure the battery is working in optimum condition, Battery Thermal Management Strategies (BTMS) are needed. This research intends to find the cooling performance of paraffin wax-based Phase Change Material (PCM) through immersion cooling BTMS towards a LiFePo4 battery pack during discharge process at 1C, 2C, and 3C discharge rate with immersion rate of 30%, 50% and 90% at 15° and 35° inclination angle simulating pitching and rolling conditions of a ship. It was found that immersion rate of the coolant, in this research being 30%, 50% and 90% of the battery height, has a significant effect on the temperature of the battery pack. Discharging the battery without coolant could make the battery’s temperature achieve 45.38° C. Meanwhile, discharging the battery pack while it is immersed in paraffin wax PCM, could lower the temperature by approximately 6-7° C at 30% immersion, 8-10° C at 50% immersion, and 11-12° C at 90% immersion. As for the temperature of parts of the batteries that were immersed and not immersed in the PCM, both at 15° and 35° inclination angle, there is only a slight difference in its temperature, generally smaller than 1° C in temperature difference. Therefore, paraffin wax PCM could maintain the ideal operating temperature of the battery pack even at the lowest tested immersion rate and at both 15° and 35° inclination angle.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	bahan berubah fasa, baterai, pendinginan perendaman, battery, immersion cooling, phase change material
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ263 Heat exchangers
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Yogyandini Mega Kirana
Date Deposited:	07 Aug 2024 01:40
Last Modified:	28 Aug 2024 04:11
URI:	http://repository.its.ac.id/id/eprint/112991

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