Design, fabrication and characterization of low-cost, energy efficient integrated Ti/Pt temperature sensors with thin film Ti/Pt heaters and flow-generator on Si microfluidic platform for evaporator stage in fuel-cell methanol hydrogen microreactor are presented. Design guidelines for proposed model predictive control method, based on micropump and pressure sensor are discussed in detail, followed by experimental setup description and system characterization. It was found that micropump stability has a significant impact on long term system performance.
B.04 Guest lecture
COBISS.SI-ID: 7940436A collection of solved tasks, primarily for electrical engineering students towards electronics in university and professional studies. The aim of the collection is closer to the world of electrical engineering computer science students, provide methods for circuit analysis, an analysis of harmonic circuits, linearization factors, treatment of diodes and bipolar and unipolar transistors, and finally the implementation of technologies TTL, NMOS and CMOS transistors with these and finally to prepare students for independent or analysis, synthesis of logic functions in the presented technologies.
D.10 Educational activities
COBISS.SI-ID: 251290368Recent research activities on micro/nano technologies and structures with emphasis on techologies for microreactor manufacturing in LMSE were reviewed. Latest results were reported and discussed. Possible topics for cooperation were identified.
B.04 Guest lecture
COBISS.SI-ID: 8105300A methanol fuel processor was built based on Si wafers micro channel and micro chamber structures for unit operations which were fully integrated into a single rugged device. The fuel processor encompasses fuel combustor, vaporizer, steam reformer, and selective CO oxidation. The influence of catalyst deposition method and its activation on the micro-channel fuel processing characteristics were studied. The concentration of CO in the dry gas below 50 ppm has been achieved.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 4550426Investigation of platinized thin silicon membrane with PbZr0.3Ti0.7O3 (PZT) piezoelectric thin film actuation was carried out. Device characterization was performed by DC and AC square pulse excitation signal in the frequency range 1 Hz-10 kHz. To monitor the membrane response, an optical characterization setup was developed. Maximal membrane deflection of 630 nm at the excitation signal amplitude of 8V was obtained. The dynamic membrane response follows the excitation signal up to 15 kHz.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 7929428