Pratama, Raynanda Ardhi (2024) Studi Eksperimental Pengaruh Penambahan Material Filler Serbuk Grafit Rasio 0.2 dan 0.4 pada Phase Change Material dengan Ketebalan 3 mm, 6 mm, dan 9 mm saat Proses Discharging. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Industri otomotif menyumbang 25% emisi gas rumah kaca. Oleh karena itu, diperlukan
inovasi untuk mereduksi emisi terebut, salah satunya adalah elektrifikasi kendaraan. Salah satu
komponen penting yang ada di dalam kendaraan listrik adalah baterai. Terdapat berbagai jenis
baterai yang tersedia, salah satu yang paling banyak digunakan adalah baterai litium-ion.
Baterai litium-ion memiliki densitas energi yang tinggi, self discharge yang rendah, siklus
hidup yang panjang, namun sensitife terhadap kenaikan suhu. Oleh karena itu, diperlukan
material PCM untuk mengatasi permasalahan tersebut. Penambahan material filler
berkonduktivitas tinggi, seperti serbuk grafit dianjurkan untuk ditambahkan pada PCM untuk
membantu meningkatkan konduktivitas PCM. Pada penelitian tugas akhir ini dilakukan variasi
penambahan material serbuk grafit dan variasi ketebalan PCM dengan perbandingan komposisi
paraffin wax dengan material serbuk grafit sebesar 0.2 dan 0.4. Variasi ketebalan PCM terdiri
dari 3mm, 6mm, dan 9mm. Pengujian akan dilakukan secara discharging dengan 5 tingkat,
yaitu 1C, 2C, 3C, 4C, dan 5C. Hasil penelitian menunjukkan bahwa sistem pendinginan
menggunakan PCM, baik murni maupun komposit, efektif dalam menjaga temperatur
permukaan baterai. Selain itu, penelitian menunjukkan bahwa penambahan komposisi serbuk
grafit sebesar 0.4 mampu mendinginkan temperatur permukaan baterai lebih efektif. Pada setiap
variasi discharging rate, variasi PCM komposit dengan rasio filler 0.4 dan ketebalan 9mm
mampu menjaga temperatur permukaan baterai di 35.075 ℃ atau sekitar 13.7% pada variasi
discharge rate 1C, kemudian 42.45 ℃ atau sekitar 23.24% pada variasi discharge rate 2C,
kemudian 46.67 ℃ atau sekitar 30.44% pada variasi discharge rate 3C, kemudian 45.9 ℃ atau
sekitar 37.89% pada variasi discharge rate 4C, dan 46.875 ℃ atau sekitar 47.87% pada variasi
discharge rate 5C. Penelitian juga menunjukkan bahwa PCM komposit dengan penambaha
ketebalan dinding PCM komposit sebesar 9mm mampu mendinginkan temperatur permukaan
baterai lebih efektif. Hasil simulasi memiliki nilai eror atau selisih temperatur yang cukup kecil,
hal tersebut menunjukkan bahwa eksperimen yang telah dilakukan memiliki akurasi yang baik.
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The automotive industry contributes 25% of greenhouse gas emissions. Therefore,
innovation is needed to reduce these emissions, one of which is vehicle electrification. One of
the important components in electric vehicles is the battery. There are various types of batteries
available, one of the most widely used is the lithium-ion battery. Lithium-ion batteries have
high energy density, low self-discharge, long life cycle, but are sensitive to temperature
increases. Therefore, PCM material is needed to overcome these problems. The addition of
high-conductivity filler material, such as graphite powder, is recommended to be added to the
PCM to help increase the conductivity of the PCM. In this final project research, variations in
the addition of graphite powder material and variations in PCM thickness were carried out with
a ratio of paraffin wax composition to graphite powder material of 0.2 and 0.4. The PCM
thickness variations consist of 3mm, 6mm, and 9mm. Testing will be carried out by discharging
with 5 levels, namely 1C, 2C, 3C, 4C, and 5C. The results of the study showed that the cooling
system using PCM, both pure and composite, was effective in maintaining the battery surface
temperature. In addition, the study showed that the addition of graphite powder composition of
0.4 was able to cool the battery surface temperature more effectively. At each variation of the
discharging rate, the variation of composite PCM with a filler ratio of 0.4 and a thickness of
9mm was able to maintain the battery surface temperature at 35,075 ℃ or about 13.7% at a
discharge rate variation of 1C, then 42.45 ℃ or about 23.24% at a discharge rate variation of
2C, then 46.67 ℃ or about 30.44% at a discharge rate variation of 3C, then 45.9 ℃ or about
37.89% at a discharge rate variation of 4C, and 46.875 ℃ or about 47.87% at a discharge rate
variation of 5C. The study also showed that composite PCM with an additional composite PCM
wall thickness of 9mm was able to cool the battery surface temperature more effectively. The
simulation results have a fairly small error value or temperature difference, this shows that the
experiments that have been carried out have good accuracy
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Battery, Graphite Powder, Paraffin, Baterai, Serbuk Grafit, Paraffin |
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ165 Energy storage. T Technology > TJ Mechanical engineering and machinery > TJ263 Heat exchangers T Technology > TJ Mechanical engineering and machinery > TJ265.E23 Thermodynamics. T Technology > TJ Mechanical engineering and machinery > TJ808 Renewable energy sources. Energy harvesting. |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Raynanda Ardhi Pratama |
| Date Deposited: | 09 Aug 2024 01:57 |
| Last Modified: | 25 Sep 2024 03:11 |
| URI: | http://repository.its.ac.id/id/eprint/114399 |
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