Quantification of the water boiling heat transfer in micro-structures by image analysis

Autor: A. Chenu, C. Ferret, T.T. Veenstra, Umberto D'Ortona, L. Falk

Publikováno v: Superlattices and microstructures, 35(3-6), 657-668. Academic Press Inc.

The heat transfer performance of a micro-vaporizer has been measured by conventional methods (using temperatures, flow rates, effective power input). The study was carried out for laminar flow in channels (5 mm×3 cm×200 μm) micro-structured with s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64998dcdf3df7b83453e11bb6c846451
https://doi.org/10.1016/j.spmi.2003.11.009

Analysis systems for the detection of ammonia based on micromachined components modular hybrid versus monolithic integrated approach

Autor: Jeroen Wissink, Albert Prak, Miko Elwenspoek, T.T. Veenstra, Han Gardeniers, Richard Mateman, Roald M. Tiggelaar, Remco G.P. Sanders, Albert van den Berg, Erwin Berenschot

Publikováno v: Sensors and actuators, 92(1-2), 25-36. Elsevier

This paper presents two miniaturized analysis systems for measurement of the ammonia concentration in aqueous solutions. Both systems are based on identical micromachined components. In the first system the components are integrated on one chip, thus

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3235522174a8a66e7609e8c28eed13cf
https://doi.org/10.1016/s0925-4005(03)00127-8

Use of selective anodic bonding to create micropump chambers with virtually no dead volume

Autor: Remco G.P. Sanders, Johannes G.E. Gardeniers, Michael Curt Elwenspoek, A. van den Berg, T.T. Veenstra, Johan W. Berenschot

Publikováno v: Journal of the Electrochemical Society, 148(2), G68-G72. The Electrochemical Society Inc.

Membrane micropump chambers of 11 mm diam with virtually zero dead volume were realized using selective anodic bonding. The selective bonding was achieved with less than 1 nm thick metallic antibonding layers on the glass wafer. Experiments were carr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58f697d580df22b8383671a2f0aed61c
https://doi.org/10.1149/1.1339873

Microcooling Developments at the University of Twente

Autor: H.J.M. ter Brake, T.T. Veenstra, Srinivas Vanapalli, Henri Jansen, Michael Curt Elwenspoek, Horst Rogalla, Herman J. Holland, G.C.F. Venhorst, P.P.P.M. Lerou, Johannes Faas Burger

Publikováno v: ISSUE=5;TITLE=5th ESA Micro & Nano Technologies Round Table for Space Applications Statistics 2005
AIP conference proceedings, 823, 1-8. American Institute of Physics

At the University of Twente, research is continued on micro cooling in which cooler components are manufactured by means of micromachining (MEMS). Two projects are carried out in parallel: one on recuperative coolers and one on regenerative coolers.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5f04db1acd00b1cd872a55f8f18c717
https://doi.org/10.1063/1.2202510

The design of an in-plane compliance structure for microfluidical systems

Autor: Michael Curt Elwenspoek, Johannes G.E. Gardeniers, F.K. Forster, A. van den Berg, T.T. Veenstra, N.R. Sharma

Publikováno v: Sensors and actuators, 81(2-3), 377-383. Elsevier

Two compliance structures for the use in liquid-based microfluidic systems have been realized with the aid of silicon micromachining. The basic principle is that these structures contain air bubbles that dampen the flow and pressure variations that m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80f8d1c847ad197bedbcfa3034e7c7d2
https://research.utwente.nl/en/publications/ba998875-dc28-409c-9b97-c3517f2862cc