Studi Numerik Pengaruh Phase Change Material Berjenis Hexacosane Pada Stack Vanadium Redox Flow Battery

Febrian, Dwiari Rizki (2023) Studi Numerik Pengaruh Phase Change Material Berjenis Hexacosane Pada Stack Vanadium Redox Flow Battery. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Redox flow battery merupakan baterai cair yang mengalir dan bersirkulasi baterai jenis ini dipertimbangkan sebagai penyimpanan energi untuk skala besar (0,5-12MW). Redox flow battery memiliki waktu discharge yang lebih lama serta lifetime yang lebih panjang apabila dibandingkan dengan lithium-ion. Redox flow battery memiliki kebutuhan biaya yang lebih murah apabila dibandingkan dengan baterai lithium-ion. Walaupun memiliki kebutuhan biaya yang lebih murah, redox flow battery memiliki tingkat efisiensi yang tergolong rendah. VRFB telah tersebar dan dikomersialisasikan sebagai perangkat penyimpanan energi pada pembangkit listrik energi terbarukan ke seluruh dunia. Oleh karena itu, pengembangan terkait pendinginan baterai berjenis VRFB ini harus dikembangkan, mengingat baterai berjenis ini memiliki peluang yang besar untuk terus dikembangkan. Dikemudian hari baterai berjenis lithium-ion haruslah dapat berkomperisi dengan VRFB dalam mengembangkan perangkat penyimpanan energi berkskala besar. Penelitian ini dilakukan dengan beberapa batasan seperti baterai yang digunakan adalah Vanadium Redox Flow Battery, bagian yang analisis hanya stack, lalu heat generation yang diikutsertakan kedalam perhitungan hanya heat generation rate, menggunakan simulasi numerik untuk mengetahui distribusi temperatur menggunakan ANSYS 2022 R1, kemudian kondisi temperatur diasumsikan 50°C atau 323K pada setup saat processing. Penelitian ini ingin melihat seperti apa distribusi temperatur dari stack baterai berjenis vanadium redox flow battery. Juga ingin melihat kondisi temperatur baterai sebelum dan sesudah menggunakan pendinginan berjenis phase change material. Seperti yang telah diteliti Jiayou Ren et al pada tahun 2022 bahwa pendinginan stack pada baterai bisa dilakukan dengan menambahkan PCM disekeliling tubuh stack, yang menghasilkan turunnya temperatur pada stack VRFB. Pada penelitian ini menunjukkan bahwa penggunaan Phase Change Material (PCM) dengan tebal 3 cm pada stack Vanadium Redox Flow Battery (VRFB) berhasil menurunkan temperatur sebesar 1,09 K hingga 0,26 K, dengan efektivitas tertinggi pada laju aliran massa 0,052 kg/s. PCM tebal 4 cm menurunkan temperatur hingga 5,56 K, dengan distribusi temperatur panas mendekati inlet. PCM tebal 5 cm menurunkan temperatur hingga 15,87 K, dengan distribusi bersuhu rendah atau dingin merata.
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Redox flow battery is a liquid battery that flows and circulates. This type of battery is considered as energy storage for large scale (0.5-12MW). Redox flow batteries have a longer discharge time and longer lifetime when compared to lithium-ion. Redox flow batteries have lower cost requirements when compared to lithium-ion batteries. Although it has a lower cost requirement, redox flow battery has a relatively low efficiency level. VRFBs have been spread and commercialized as energy storage devices in renewable energy power plants throughout the world. Therefore, development related to VRFB battery cooling must be developed, considering that this type of battery has a great opportunity to continue to be developed. In the future, lithium-ion batteries must be able to compete with VRFB in developing large-scale energy storage devices. This research was conducted with several limitations such as the battery used is Vanadium Redox Flow Battery, the part analyzed is only the stack, then the heat generation included in the calculation is only the heat generation rate, using numerical simulations to determine the temperature distribution using ANSYS 2022 R1, then the temperature conditions are assumed to be 50°C or 323 K in the setup during processing. This research wants to see what the temperature distribution of a vanadium redox flow battery stack looks like. It also wants to see the battery temperature conditions before and after using phase change material type cooling. As Jiayou Ren et al have researched in 2022 that cooling the stack on the battery can be done by adding PCM around the stack body, which results in a decrease in temperature on the VRFB stack. This study shows that the use of Phase Change Material (PCM) with a thickness of 3 cm in the Vanadium Redox Flow Battery (VRFB) stack successfully reduces the temperature by 1.09 K to 0.26 K, with the highest effectiveness at mass flow rate of 0.052 kg/s. The 4 cm thick PCM reduced the temperature to 5.56 K, with the heat temperature distribution close to the inlet. The 5 cm thick PCM reduced the temperature to 15.87 K, with an evenly distributed low or cold temperature.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Vanadium Redox Flow Battery, Baterai, Phase Change Material. Laju Aliran Massa, Vanadium Redox Flow Battery, Battery, Phase Change Material, Mass Flow Rate
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User:	Dwiari Rizki Febrian
Date Deposited:	04 Aug 2023 08:38
Last Modified:	04 Aug 2023 08:39
URI:	http://repository.its.ac.id/id/eprint/101665

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