Electrokinetic pumps and actuators

Paul, Phillip M.

Sandia National Laboratories

关键词: Flowmeters;    Electromagnetic Fields;    30 Direct Energy Conversion;    36 Materials Science;    Forced Convection;   

DOI  :  10.2172/755099
RP-ID  :  SAND2000-8218
RP-ID  :  AC04-94AL85000
RP-ID  :  755099

美国|英语

来源: UNT Digital Library

【 摘 要 】

Flow and ionic transport in porous media are central to electrokinetic pumping as well as to a host of other microfluidic devices. Electrokinetic pumping provides the ability to create high pressures (to over 10,000 psi) and high flow rates (over 1 mL/min) with a device having no moving parts and all liquid seals. The electrokinetic pump (EKP) is ideally suited for applications ranging from a high pressure integrated pump for chip-scale HPLC to a high flow rate integrated pump for forced liquid convection cooling of high-power electronics. Relations for flow rate and current fluxes in porous media are derived that provide a basis for analysis of complex microfluidic systems as well as for optimization of electrokinetic pumps.