Analisis Numerik Perancangan Alat Penukar Kalor Shell and Tube pada Sistem Vanadium Redox Flow Battery

Munandar, Abdulghani Ramadhan (2023) Analisis Numerik Perancangan Alat Penukar Kalor Shell and Tube pada Sistem Vanadium Redox Flow Battery. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pembangkit listrik dengan sumber energi berjeda perlu dirangkaikan dengan perangkat penyimpan energi listrik yang dapat mengisi daya saat terjadi kelebihan pembangkitan energi listrik dan melepaskan daya saat diperlukan konsumsi energi listrik tambahan. Vanadium Redox Flow Battery (VRFB) menjadi perangkat penyimpan daya yang memiliki efisiensi energi yang tinggi, siklus hidup yang panjang, keamanan yang dapat diandalkan, terutama independensi kapasitas dan daya. Temperatur sel baterai harus dikendalikan dalam rentang temperatur 5oC sampai dengan 40oC untuk menghindari terjadinya presipitasi. Pada penelitian ini dilakukan analisis rancangan penukar kalor tipe shell and tube untuk mendinginkan elektrolit pada VRFB agar dapat beroperasi dalam rentang temperatur operasi yang optimal serta analisis temperaturnya. Analisis dilakukan menggunakan software ANSYS Fluent dengan variasi laju aliran massa dan temperatur inlet fluida. Shell and tube yang digunakan adalah tipe 1-2 pass dengan counter flow dan standardisasi TEMA tipe CEP. Over design pada shell and tube memiliki nilai di bawah 30%. Shell and tube dapat mendinginkan elektrolit vanadium pada VRFB dengan laju aliran massa elektrolit vanadium 0,052 kg/s hingga 0,2 kg/s, dan laju aliran massa air 0,25 kg/s hingga 0,75 kg/s. Kontur temperatur menunjukkan penurunan temperatur outlet elektrolit vanadium saat peningkatan laju aliran massa air, dan peningkatan temperatur saat peningkatan laju aliran massa elektrolit vanadium. Temperatur inlet dan outlet elektrolit vanadium memiliki hubungan linear, dengan rentang pendinginan 30°C hingga 60°C.Peningkatan laju aliran massa mempengaruhi pressure drop, dengan nilai tertinggi 13,45 kPa pada sisi shell dan 0,538 kPa pada sisi tube, serta nilai terendah 1,258 kPa pada sisi shell dan 0,052 kPa pada sisi tube
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Power plants with intermittent energy sources need to be coupled with electrical energy storage devices that can charge when there is excess power generation and discharge when additional power consumption is required. The Vanadium Redox Flow Battery (VRFB) is an energy storage device with high energy efficiency, long cycle life, reliable safety, especially capacity, and power independence. The battery cell temperature needs to be controlled between 5°C to 40°C to avoid precipitation. In this study, an analysis of the design of a shell and tube heat exchanger was performed to cool the electrolyte in the VRFB, allowing it to operate within the optimal temperature range and analyzing its temperature. The analysis was conducted using ANSYS Fluent software with variations in mass flow rate and inlet fluid temperature. The shell and tube used were of the 1-2 pass type with counter flow and Tubular Exchanger Manufacturers Association (TEMA) standardization with CEP type. The over-design of the heat exchanger had a value below 30%. The shell and tube coul cool the vanadium electrolyte in the VRFB with a vanadium electrolyte mass flow rate ranging from 0.052 kg/s to 0.2 kg/s and a water mass flow rate ranging from 0.25 kg/s to 0.75 kg/s. Temperature contours indicated that increasing the water mass flow rate had decreased the vanadium electrolyte outlet temperature and increasing the electrolyte vanadium mass flow rate had increased the temperature. The inlet and outlet temperatures of the vanadium electrolyte had a linear relation, with a cooling range of 30°C to 60°C. Increasing the mass flow rate affected the pressure drop, with the highest value of 13.45 kPa on the shell side and 0.538 kPa on the tube side, and the lowest value of 1.258 kPa on the shell side and 0.052 kPa on the tube side

Item Type:	Thesis (Other)
Uncontrolled Keywords:	ANSYS Fluent, Battery, Elektrolit, Shell and Tube, VRFB; ANSYS Fluent, Battery, Electrolyte, Shell and Tube, VRFB.
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ165 Energy storage.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User:	Abdulghani Ramadhan Munandar
Date Deposited:	29 Aug 2023 04:23
Last Modified:	29 Aug 2023 04:23
URI:	http://repository.its.ac.id/id/eprint/102097

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