نتایج جستجو برای: micro channel reactor

تعداد نتایج: 363932  

Journal: :The Review of scientific instruments 2012
Valerie J Scott Margaret Tse Michael J Shearn Peter H Siegel Xenia Amashukeli

We describe a sample-processing micro-reactor that utilizes 60 GHz RF radiation with approximately 730 mW of output power. The instrument design and performance characterization are described and then illustrated with modeling and experimental studies. The micro-reactor's efficiency on affecting hydrolysis of chemical bonds similar to those within large complex molecules was demonstrated: a dis...

ژورنال: سنجش و ایمنی پرتو 2020

In this study, the neutron and gamma doses in the dry channel and in the internal irradiation site of the Miniature Neutron Source research reactor (MNSR) has been calculated and measured. The MNSR reactor is a light water reactor with a maximum power of 30 kW and equipped with various irradiation facilities, including five irradiated sites, five irradiation sites and a dry channel. The interna...

2016
Jan Kehres Thomas Pedersen Federico Masini Jens Wenzel Andreasen Martin Meedom Nielsen Ana Diaz Jane Hvolbæk Nielsen Ole Hansen Ib Chorkendorff

The design, fabrication and performance of a novel and highly sensitive micro-reactor device for performing in situ grazing-incidence X-ray scattering experiments of model catalyst systems is presented. The design of the reaction chamber, etched in silicon on insulator (SIO), permits grazing-incidence small-angle X-ray scattering (GISAXS) in transmission through 10 µm-thick entrance and exit wi...

Journal: :Nuclear Engineering and Technology 2022

This study presents an optimal design of the coolant system a non-refueling full-life small reactor by analyzing space-integrated geometrical and electromagnetic variables extra vessel pump (EVEMP) for circulation lead–bismuth eutectic (LBE) coolant. The EVEMP is ideal alternative to thermal-hydraulic micro reactors as it possesses no internal structures, such impellors or sealing transportatio...

Journal: :Lab on a chip 2002
Jianing Yang Yingjie Liu Cory B Rauch Rauch L Stevens Randall H Liu Robin Lenigk Piotr Grodzinski

Small volume operation and rapid thermal cycling have been subjects of numerous reports in micro reactor chip development. Sensitivity aspects of the micro PCR reactor have not been studied in detail, however, despite the fact that detection of rare targets or trace genomic material from clinical and/or environmental samples has been a great challenge for microfluidic devices. In this study, a ...

Journal: :energy equipment and systems 2014
mohammadreza baigmohammadi sadegh tabejamaat babak kashir

in this study, the effect of the levels of hydrogen addition to methane-air premixed flame in a micro-stepped reactor has been studied numerically. in addition, the effects of mixture velocity and walls’ thermal conductivity (kw) on the flame’s location, temperature, and species distribution in a micro reactor were calculated using a 2d numerical laminar steady code. the results showed that an ...

Journal: :transport phenomena in nano and micro scales 2015
y. bakhshan a. r. omidvar

micro scale gas flows has attracted significant research interest in the last two decades. in this research, the fluid flow of gases in the stepped micro-channel at a wide range of knudsen number has been analyzed with using the lattice boltzmann (mrt) method. in the model, a modified second-order slip boundary condition and a bosanquet-type effective viscosity are used to consider the velocity...

2015
Erling Rytter Anders Holmen

Deactivation of commercially relevant cobalt catalysts for Low Temperature Fischer-Tropsch (LTFT) synthesis is discussed with a focus on the two main long-term deactivation mechanisms proposed: Carbon deposits covering the catalytic surface and re-oxidation of the cobalt metal. There is a great variety in commercial, demonstration or pilot LTFT operations in terms of reactor systems employed, c...

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