Return to search

Experimental Study of Electroosmotic Flow in Microchannels with Velocity/Temperature Measurements

Experiments were conducted on the investigation of the electroosmotic flow with five different electric field strength, four kinds of buffer solution concentration, six different pH values, and three kinds of microchannel geometry. Joule heating effects were also taken into consideration. Experiments were performed using a microparticle image velocimetry (MPIV) for full field velocity distributions and micro laser-induced fluorescent (£gLIF) for full field temperature distributions. It is found that the presence of Joule heating and flow area change could have a great impact on the microfluidic transportation, e.g. dispersion. Furthermore, data were presented and the relation between zeta potential and pH value were discussed in detail. It is found that, as pH > 7.5, all silanol sites are deprotonated.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0720107-151312
Date20 July 2007
CreatorsYang, Teng-kuei
ContributorsChing-Jenq Ho, Shou-Shing Hsieh, Chin-Chia Su
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0720107-151312
Rightsunrestricted, Copyright information available at source archive

Page generated in 0.0017 seconds