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Journals / Uludağ Üniversitesi Mühendislik Fakültesi Dergisi / 2024 / Cilt: 29 Sayı: 3

INVESTIGATION OF THE EFFECT OF DIFFERENT DESIGN AND FLOW PARAMETERS ON BATTERY COOLING SYSTEM PERFORMANCE

Farklı Tasarım Ve Akış Parametrelerinin Batarya Soğutma Sistemi Performansına Etkisinin İncelenmesi

Ersel Dönmez(Bursa Uludağ Üniversitesi)0009-0003-6343-4447
Emre Bulut(BURSA ULUDAĞ ÜNİVERSİTESİ)0000-0001-9159-5000
Pages
819–830
Publication Date
2024-12-24
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In the analyses performed at different Reynolds numbers and with varying numbers of cooling plate channels, it was observed that as the Reynolds number increased, both the heat transfer rate and coolant flow velocity increased, leading to a reduction in battery temperature values but an increase in pressure values.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, a module consisting of 30 pouch-type lithium-ion batteries with Lithium Iron Phosphate (LFP) chemistry, known for its lower flammability, was modeled along with its cooling system in a one-dimensional framework.
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Key Findings & Data:The temperature variations and heat generation rates of the battery system were analyzed at different discharge rates.
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Conclusion & Impact:In the analyses performed at different Reynolds numbers and with varying numbers of cooling plate channels, it was observed that as the Reynolds number increased, both the heat transfer rate and coolant flow velocity increased, leading to a reduction in battery temperature values but an increase in pressure values.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Batarya soğutma sistemi · Bir boyutlu modelleme · lityum iyon batarya

Abstract

In this study, a module consisting of 30 pouch-type lithium-ion batteries with Lithium Iron Phosphate (LFP) chemistry, known for its lower flammability, was modeled along with its cooling system in a one-dimensional framework. The modeling was conducted using MATLAB Simulink and Simscape Battery. The temperature variations and heat generation rates of the battery system were analyzed at different discharge rates. A liquid cooling system, designed to cool the battery module from below, was developed. The cooling performance was examined by selecting a laminar flow regime at lower Reynolds numbers, which was assumed to result in lower pumping losses. In the analyses performed at different Reynolds numbers and with varying numbers of cooling plate channels, it was observed that as the Reynolds number increased, both the heat transfer rate and coolant flow velocity increased, leading to a reduction in battery temperature values but an increase in pressure values.

Özet

Bu çalışmada elektrikli araçlarda kullanılan, yanıcılığı daha az olan Lityum Demir Fosfat kimyasına sahip, 30 adet kese (pouch) tipi adı verilen Lityum iyon bataryadan oluşan bir modül ve soğutma sistemi bir boyutlu olarak modellenmiş ve soğutma performansı incelenmiştir. Modelleme MATLAB Simulink ve Simscape Battery ortamında gerçekleştirilmiştir. Farklı deşarj oranlarında batarya sisteminin sıcaklık değişimleri ve ısı üretim miktarları incelenmiştir. Batarya modülünü soğutabilmek için, alttan olacak şekilde sıvı soğutma sistemi tasarlanmıştır. Sıvı soğutma sisteminde pompalama kayıplarının daha az olduğu düşünülen daha düşük Reynolds sayılarında laminer akış tipi seçilerek soğutma perfomansı incelenmiştir. Farklı Reynolds sayılarında ve farklı soğutma plakası kanal sayılarında yapılan analizlerde, Reynolds sayısı arttıkça ısı transfer hızı ve soğutma sıvısı hızı arttığı için batarya sıcaklık değerlerinde düşüş ve basınç değerlerinde artış görülmüştür.

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Cite This Article

Dönmez, E., Bulut, E. (2024). INVESTIGATION OF THE EFFECT OF DIFFERENT DESIGN AND FLOW PARAMETERS ON BATTERY COOLING SYSTEM PERFORMANCE. Uludağ Üniversitesi Mühendislik Fakültesi Dergisi, Cilt: 29 Sayı: 3, 819–830. https://doi.org/10.17482/uumfd.1570344

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