Measurement of non-effective electric current in electrodialysis stacks

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F17%3AN0000028" target="_blank" >RIV/28676092:_____/17:N0000028 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24220/17:00008818

Výsledek na webu

<a href="http://www.scopus.com/inward/record.uri?eid=2-s2.0-85042365797&doi=10.1149%2f2.1481709jes&partnerID=40&md5=f00fca4710c43bcf59f00590188a0885" target="_blank" >http://www.scopus.com/inward/record.uri?eid=2-s2.0-85042365797&doi=10.1149%2f2.1481709jes&partnerID=40&md5=f00fca4710c43bcf59f00590188a0885</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1149/2.1481709jes" target="_blank" >10.1149/2.1481709jes</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of non-effective electric current in electrodialysis stacks

Popis výsledku v původním jazyce

The driving force of electrodialysis is applied voltage and electric current. In the event that the module is composed of a number of mutually hydraulically connected subunits (membrane pairs), electric current passes through a part outside the active part along peripherals providing the supply of raw materials. This work focuses on the measurement of these currents that are lost inefficiently. The influence of module geometry on electrodialysis, conductivity of working solutions and applied voltage were studied. The influence of the presence of an ion-conductive membrane in the sealing area on the performance of a membrane stack has been proven. A relation between the conductivity of a membrane and the conductivity of electrolytes to the amount of leakage currents has been found. On the contrary, voltage applied does not primarily influence the distribution of leakage currents but it affects the degree of desalination and the conductivity of solutions in collecting and feeding channels. In the pilot and operating modules with 25 and 50 membrane pairs that were used, the calculated leakage current reaches 0.2–1.2% of the total current load depending on the design and operating conditions.

Název v anglickém jazyce

Measurement of non-effective electric current in electrodialysis stacks

Popis výsledku anglicky

The driving force of electrodialysis is applied voltage and electric current. In the event that the module is composed of a number of mutually hydraulically connected subunits (membrane pairs), electric current passes through a part outside the active part along peripherals providing the supply of raw materials. This work focuses on the measurement of these currents that are lost inefficiently. The influence of module geometry on electrodialysis, conductivity of working solutions and applied voltage were studied. The influence of the presence of an ion-conductive membrane in the sealing area on the performance of a membrane stack has been proven. A relation between the conductivity of a membrane and the conductivity of electrolytes to the amount of leakage currents has been found. On the contrary, voltage applied does not primarily influence the distribution of leakage currents but it affects the degree of desalination and the conductivity of solutions in collecting and feeding channels. In the pilot and operating modules with 25 and 50 membrane pairs that were used, the calculated leakage current reaches 0.2–1.2% of the total current load depending on the design and operating conditions.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20401 - Chemical engineering (plants, products)

Projekt

<a href="/cs/project/FR-TI4%2F398" target="_blank" >FR-TI4/398: Výzkum, vývoj a aplikace elektromembránových modulů nové generace</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.

Název periodika

Journal of The Electrochemical Society

ISSN

0013-4651

e-ISSN

—

Svazek periodika

2017/ 9

Číslo periodika v rámci svazku

Volume 164

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

276-282

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85042365797