3D printed spacers for ED - influence of mesh geometry on the shadow effect and diffusion layers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F22%3AN0000023" target="_blank" >RIV/28676092:_____/22:N0000023 - isvavai.cz</a>
Result on the web
<a href="http://www.czemp.cz/cs/workshop-studentskych-praci-2022" target="_blank" >http://www.czemp.cz/cs/workshop-studentskych-praci-2022</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
3D printed spacers for ED - influence of mesh geometry on the shadow effect and diffusion layers
Original language description
Electrodialysis (ED) is an electromembrane separation process to separate ions from solutions. The ED stack is composed of cation and anion exchange membranes, which are separated by non-conductive spacers. One of the main functions of spacers and mesh in their active area is to control solution flow distribution and to promote mixing of processed solution and consequently increase mass transport. Thus, careful design may increase mixing of the solution, better mass transfer, decrease the diffusion boundary layer (DBL), prevent concentration polarization, and increase value of limit current density. On the other hand, non-conducting mesh increases the electrical resistance of working chamber and whole membrane stack. This is called shadow effect, which is characterized by shadow coefficient. This paper examines the performance of five different types of meshes. Batch tests and volt-ampere characteristics were done for each mesh.
Czech name
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Czech description
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Project
<a href="/en/project/FW01010292" target="_blank" >FW01010292: Development of novel components for electromembrane modules using additive technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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