CFD Analysis Of Immersion Cooling For G-NMC Lithium Ion Battery

Permana, Antonio Dega Wahyu (2022) CFD Analysis Of Immersion Cooling For G-NMC Lithium Ion Battery. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Battery is an electrical component which capable of storing energy in the form of chemical reactions. In the process of receiving (charging) and releasing (discharge) energy, some of the energy can be lost and turned in to heat. Excessive heat can impair performance and shorten battery life. Battery Thermal Management System (BTMS) is a system that is useful for keeping the battery temperature within the allowable operational range. One of the fluids for cooling the battery is a liquid. Cooling the battery using a liquid can be direct or indirect contact. This thesis will discuss the cooling performance of immersion or direct contact method for a battery module. The battery module that will be simulated has a capacity of 50 Ah, and the coolant used is Novec 7300. The immersion will be varied based on the surface area of the battery module immersed: 100%, whole cell, and 50% immersion. From the simulation results, it is found that all variations of immersion can keep the battery temperature below 55 oC, which is the upper threshold of the operating temperature recommended by the battery manufacturer during discharging. 100% immersion can keep the average battery temperature at 27.25 oC. Immersion of the whole cell can keep the average battery temperature at 27.74 oC. 50% immersion can keep the battery temperature at 35.25 oC.
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Baterai adalah sebuah komponen elektrik yang mampu menyimpan energi dalam bentuk reaksi kimia. Dalam proses penerimaan dan pelepasan energi, sebagian energi akan terkonversi menjadi panas. Panas yang berlebihan dapat mengganggu performa dan memperpendek umur baterai. Sistem manajemen panas baterai adalah sebuah sistem manajemen suhu baterai yang berguna untuk menjaga suhu baterai agar tetap dalam jangkauan yang diperbolehkan. Salah satu fluida yang dapat digunakan untuk pendinginan baterai adalah zat cair. Pendinginan baterai menggunakan zat cair dapat secara kontak langsung maupun tidak langsung. Tugas akhir ini akan membahas performa pendinginan baterai menggunakan metode pencelupan, yang mana adalah pendinginan secara kontak langsung. Modul baterai yang akan disimulasikan berkapasitas 50 Ah, dan cairan pendingin yang digunakan adalah Novec 7300. Pencelupan akan divariasikan berdasarkan luas permukaan modul baterai yang tercelup, yaitu 100%, seluruh sel, dan 50% pencelupan. Dari hasil simulasi, didapatkan bahwa semua variasi pencelupan dapat menjaga suhu baterai di bawah 55 oC, yang merupakan ambang atas suhu operasional yang dianjurkan oleh pabrikan baterai saat proses pengosongan baterai. Pencelupan 100% dapat menjaga rata-rata suhu baterai di 27,25 oC. Pencelupan seluruh sel dapat menaga rata-rata suhu baterai di 27,74 oC. Pencelupan 50% dapat menjaga suhu baterai di 35,25 oC.

Item Type: Thesis (Other)
Additional Information: RSSP 621.312 42 Per c-1 2022, -3100022097248
Uncontrolled Keywords: Battery, Temperature, Cooling, Baterai, Suhu, Pendinginan
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA357 Computational fluid dynamics. Fluid Mechanics
Divisions: Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User: Mr. Marsudiyana -
Date Deposited: 02 Mar 2026 04:22
Last Modified: 02 Mar 2026 04:22
URI: http://repository.its.ac.id/id/eprint/132677

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