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Analysis of Fluid Flow in Redox Flow Batteries

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Analysis of Fluid Flow in Redox Flow Batteries ( analysis-fluid-flow-redox-flow-batteries )

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After implementing RREF function: ρ vc hc Ξ”Pm ΞΌ K L wc hc ρ100110000 vc 0 1 0 2 1 0 0 0 0 hp 0 0 1 0 1 2 1 1 1 𝐾𝑀𝑀h𝐿 βˆ†π‘ƒ πœŒπ‘£h 𝐸𝑒=𝑓(𝑅𝑒, , π‘Ÿ, 𝑐, 𝑐, ),𝐸𝑒= π‘š,𝑅𝑒= 𝑐 𝑐 h2 h h h h πœŒπ‘£2 πœ‡ 𝑝𝑝𝑝𝑝𝑝 𝑐 (3.10) Where Eu and Re are the Euler number and the Reynolds number, respectively. A representation of KΜƒ is by using a DN called compression ratio (CR): 𝐢𝑅=1βˆ’ h𝑝 (3.11) h𝑝,0 Which hp,0 is the uncompressed electrode thickness. Based on the literature, the permeability and the thickness of porous media has a linear correlation with each other.[38,100] This correlation leads to the following equations: 𝐾=𝐾 h𝑝 =𝐾(1βˆ’πΆπ‘…) 0 h𝑝,0 0 (3.12) (3.13) Μƒ 𝐾 𝐾=h2= 𝑝 𝐾0(1βˆ’πΆπ‘…) (h𝑝,0(1βˆ’πΆπ‘…)) 𝐾0 1 ́ π‘ŽΜƒπ‘ 𝑐 𝑑̃𝑒̃𝑑 →𝐸𝑒=𝐴𝑅𝑒𝐾𝑀̃̃𝑀 𝐿h π‘Ÿπ‘π‘ 2=h2 1βˆ’πΆπ‘… 𝑝,0 Which K0 is the uncompressed permeability. This representation of KΜƒ shows the linear relationship between the permeability and the thickness of electrodes, and a single parameter (CR) substitutes 25

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