نتایج جستجو برای: reactor modeling

تعداد نتایج: 417140  

ge-newline"> One method for conversion of methane to more valuable products is by non-catalytic gas-phase oxidative coupling of methane (OCM), through which methane is converted <span style="font-size:...

Biodegradation kinetics of 4-nitrophenol (PNP) in aqueous solution by a gram negative soil bacterium, Ralstoniaeutropha was firstly studied in a small scale batch reactor. The degradation of PNP was evaluated at initial PNP concentrations ranging from 3 mg/L to 14 mg/L. The rate of PNP consumption by the bacterium culture was modeled using Monod and Contois kinetics in batch condition. PNP degr...

Journal: :Water research 2008
E R Blatchley C Shen O K Scheible J P Robinson K Ragheb D E Bergstrom D Rokjer

Dyed microspheres have been developed as a new method for validation of ultraviolet (UV) reactor systems. When properly applied, dyed microspheres allow measurement of the UV dose distribution delivered by a photochemical reactor for a given operating condition. Prior to this research, dyed microspheres had only been applied to a bench-scale UV reactor. The goal of this research was to extend t...

2011
Stephen Wood

Acknowledgments This work was performed at the Oak Ridge National Laboratory, which is managed by UTBattelle, LLC under Contract No. De-AC05-00OR22725. This work has been authored by a contractor of the U.S. Government, accordingly, the U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for U.S...

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...

Journal: :CoRR 2013
Saptarshi Das Indranil Pan Shantanu Das

Nonlinear state space modeling of a nuclear reactor has been done for the purpose of controlling its global power in load following mode. The nonlinear state space model has been linearized at different percentage of reactor powers and a novel fractional order (FO) fuzzy proportional integral derivative (PID) controller is designed using real coded Genetic Algorithm (GA) to control the reactor ...

2007
Haihua Zhao Per F. Peterson

Thermal stratification phenomena are very common in pool type reactor systems, such as the liquid-salt cooled Advanced High Temperature Reactor (AHTR) and liquid-metal cooled fast reactor systems. It is important to accurately predict the temperature and density distributions both for design optimization and accident analysis. Current reactor system analysis codes only provide lumped-volume bas...

2007
Zsolt Csaba Johanyák Rangasamy Parthiban Ganesan Sekaran

Fuzzy modeling has great adaptability to the variations of system configuration and operation conditions. This paper investigates the fuzzy modeling of a laboratory scale system of anaerobic tapered fluidized bed reactor (ATFBR). The studied system is the anaerobic digestion of synthetic wastewater derived from the starch processing industries. The experiment was carried out in a mesophilic ATF...

2007
H. S. Khalil

Advances in modeling and simulation (M&S) are needed for the development and design of future generation reactor plants, particularly for providing the desired a priori assurance that performance, safety and economic goals are met. This paper summarizes the M&S needs for two types of reactor systems, the Sodium Cooled Fast Reactor (SFR), which enables multi-recycle of actinides to avoid nuclear...

2012
M. J. J. Koster-Ammerlaan P. Bode A. J. M. Winkelman

The assumption that the shape of the epithermal neutron spectrum can be described, in any research reactor, by the 1/E1+α function is a fundamental starting point of the k0 standardization. This assumption may be questioned from a reactor physics viewpoint. The type of moderator, the existence of neutron reflectors, the additional production of (γ, n) neutrons and resonance capture by construct...

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