نتایج جستجو برای: reactor engineering

تعداد نتایج: 291006  

2004
Kaj Jakobsson

Process intensification refers to technologies and strategies that enable simpler and more efficient processes compared to conventional processes. Some features of such intensified processes are less recycle streams, reduced need for waste handling and lower investment and operating costs compared to conventional processes. One way of doing this is by making two or more process steps simultaneo...

Journal: :Chemical Engineering and Processing 2023

We are in danger of losing our current standards living due to the depletion natural resources. It is essential decrease amount waste produced. In reactor engineering, production caused by formation byproducts. To increase selectivity reactor, fluid dynamics should benefit intrinsic reaction kinetics, which can only be done when each molecule has exactly same experience. The mass transfer from ...

Journal: :Nuclear Fusion 2021

Abstract The applicability of tokamak, helical and laser fusion reactors as a volumetric neutron source has been examined using the systems codes that have utilised for conceptual design DEMO commercial in Japan. This study clarified characteristics reactor-based sources can be designed based on current physics engineering basis with reasonable running cost (∼5B Yen/year). Although achievable f...

Journal: :Computers & Chemical Engineering 2023

A data-driven framework is presented, that enables the prediction of quantities, either observations or parameters, given sufficient partial data. The illustrated via a computational model deposition Cu in Chemical Vapor Deposition (CVD) reactor, where reactor pressure, temperature and feed mass flow rate are important process parameters determine outcome process. sampled high-dimensional vecto...

Journal: :The journal of physical chemistry. B 2009
Murad Gharibeh Geoffrey Tompsett Fan Lu Scott M Auerbach K Sigfrid Yngvesson W C Conner

While microwave enhancement of chemical syntheses has been demonstrated for a broad variety of chemical reactions, there is no accepted universal mechanism. Is the enhancement due to more efficient heating, to overheating, to nonuniform heating, or to nonthermal effects? Analyses are complicated due to the often significant spatial and temporal temperature variations in microwave reactor system...

2009
Zongxin Wu Dazhong Wang Yuanhui Xu Yuliang Sun Fu Li Yujie Dong

After the nuclear accidents of Three Mile Island and Chernobyl the world nuclear community made great efforts to increase research on nuclear reactors and to develop advanced nuclear power plants with much improved safety features. Following the successful construction and a most gratifying operation of the 10MWth high-temperature gas-cooled test reactor (HTR-10), the Institute of Nuclear and N...

2000
Raymond A. Adomaitis Hsiao-Yung Chang Michael T. Harris

Title of Dissertation: MODELING AND SIMULATION OF A TUNGSTEN CHEMICAL VAPOR DEPOSITION REACTOR Hsiao-Yung Chang, Doctor of Philosophy, 2000 Dissertation directed by: Assistant Professor Raymond A. Adomaitis Department of Chemical Engineering Chemical vapor deposition (CVD) processes are widely used in semiconductor device fabrication to deposit thin lms of electronic materials. Physically based...

A. Kermanpur F. Karimzadeh M. Moradi Maryam Moazeni S. Torkan

The nanoparticles of Ti and TiO2 have attracted extensive research interest because of their diverse applications in, for instance, catalysis, energy conversion, pigment and cosmetic manufacturing and biomedical engineering. Through this project, a one-step bulk synthesis method of electromagnetic levitational gas condensation (ELGC) was utilized for the synthesis of monodispersed and crystalli...

2011
Clint M. Arnett Giselle Rodriguez Stephen W. Maloney

The engineering aspects of bioreactors treating wastewaters contaminated with high explosives are better understood than the microbial communities within the reactors. Five anaerobic bioreactors treating energetics were studied to better understand bacterial compositions in each reactor system as related to influents containing various energetic materials. Studied were: three anaerobic fluidize...

2012
Joy Rempe Mitchell Farmer Michael Corradini Larry Ott

The Three Mile Island Unit 2 (TMI-2) accident, which occurred on March 28, 1979, led industry and regulators to enhance strategies to protect against severe accidents in commercial nuclear power plants. Investigations in the years after the accident concluded that at least 45% of the core had melted and that nearly 19 tonnes of the core material had relocated to the lower head. Postaccident exa...

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