Tesis sobre el tema "Chemical Process Modeling"
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Shi, Ruijie. "Subspace identification methods for process dynamic modeling /". *McMaster only, 2001.
Buscar texto completoNarisaranukul, Narintr. "Modeling and analysis of the chemical milling process". Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/43425.
Texto completoSinangil, Mehmet Selcuk. "Modeling and control on an industrial polymerization process". Thesis, Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/10150.
Texto completoJohnston, Lloyd Patrick Murphy. "Probability based approaches to process data modeling and rectifictaion". Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10913.
Texto completoKoulouris, Alexandros. "Multiresolution learning in nonlinear dynamic process modeling and control". Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/11376.
Texto completoBohn, Douglas (Douglas Gorman) 1970. "Computer modeling of a continuous manufacturing process". Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/47557.
Texto completoIncludes bibliographical references.
by Douglas Bohn.
S.M.
Lai, Jiun-Yu. "Mechanics, mechanisms, and modeling of the chemical mechanical polishing process". Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/8860.
Texto completoIncludes bibliographical references.
The ever-increasing demand for high-performance microelectronic devices has motivated the semiconductor industry to design and manufacture Ultra-Large-Scale Integrated (ULSI) circuits with smaller feature size, higher resolution, denser packing, and multi-layer interconnects. The ULSI technology places stringent demands on global planarity of the Interlevel Dielectric (ILD) layers. Compared with other planarization techniques, the Chemical Mechanical Polishing (CMP) process produces excellent local and global planarization at low cost. It is thus widely adopted for planarizing inter-level dielectric (silicon dioxide) layers. Moreover, CMP is a critical process for fabricating the Cu damascene patterns, low-k dielectrics, and shallow isolated trenches. The wide range of materials to be polished concurrently or sequentially, however, increases the complexity of CMP and necessitates an understanding of the process fundamentals for optimal process design. This thesis establishes a theoretical framework to relate the process parameters to the different wafer/pad contact modes to study the behavior of wafer-scale polishing. Several models of polishing - microcutting, brittle fracture, surface melting and burnishing - are reviewed. Blanket wafers coated with a wide range of materials are polished to verify the models. Plastic deformation is identified as the dominant mechanism of material removal in fine abrasive polishing.
(cont.) Additionally, contact mechanics models, which relate the pressure distribution to the pattern geometry and pad elastic properties, explain the die-scale variation of material removal rate (MRR) on pattern geometry. The pad displacement into low features of submicron lines is less than 0.1 nm. Hence the applied load is only carried by the high features, and the pressure on high features increases with the area fraction of interconnects. Experiments study the effects of pattern geometry on the rates of pattern planarization, oxide overpolishing and Cu dishing. It was observed that Cu dishing of submicron features is less than 20 nm and contributes less to surface non-uniformity than does oxide overpolishing. Finally, a novel in situ detection technique, based on the change of the reflectance of the patterned surface at different polishing stages, is developed to detect the process endpoint and minimize overpolishing. Models that employ light scattering theory and statistical treatment correlate the sampled reflectance with the surface topography and Cu area fraction for detecting the process regime and endpoint. The experimental results agree well with the endpoint detection schemes predicted by the models.
by Jiun-Yu Lai.
Ph.D.
Bakshi, Bhavik Ramesh. "Multi-resolution methods for modeling, analysis and control of chemical process operations". Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/13203.
Texto completoBryden, Michelle D. (Michelle Denise). "Macrotransport process in branching networks : modeling convective-diffusive phenomena in the lung". Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/33514.
Texto completoJi, Qingjun. "Mathematical modeling of carbon black process from coal". Ohio : Ohio University, 2000. http://www.ohiolink.edu/etd/view.cgi?ohiou1172255200.
Texto completoHanes, Rebecca J. "Multidisciplinary modeling for sustainable engineering design and assessment". The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1437204293.
Texto completoBieszczad, Jerry 1971. "A framework for the language and logic of computer-aided phenomena-based process modeling". Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/16735.
Texto completoIncludes bibliographical references (p. 273-277).
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Chemical process engineering activities such as design, optimization, analysis, control, scheduling, diagnosis, and training all rely on mathematical models for solution of some engineering problem. Likewise, most of the undergraduate chemical engineering curricula are model-based. However, the lack of formalization and systematization associated with model development leads most students and engineers to view modeling as an art, not as a science. Consequently, model development in practice is usually left to specialized modeling experts. This work seeks to address this issue through development of a framework that raises the level of model development from procedural computations and mathematical equations to the fundamental concepts of chemical engineering science. This framework, suitable for implementation in a computer-aided environment, encompasses a phenomena-based modeling language and logical operators. The modeling language, which represents chemical processes interms of interacting physicochemical phenomena, provides a high-level vocabulary for describing the topological and hierarchical structure of lumped or spatially distributed systems, mechanistic characterization of relevant phenomena (e.g., reactions, equilibria, heat and mass transport), and thermodynamic and physical characterization of process materials. Thelogical operators systematize the modeling process by explicitly capturing procedural and declarative aspects of the model ingactivity.
(cont.) This enables a computer to provide assistance for analyzing and constructing phenomena-based models, detect model inconsistencies and incompleteness, and automatically derive and explain the resulting model equations from chemical engineering first principles. In order to provide an experimental apparatus suitable for evaluating this framework, the phenomena-based language and logical operators have been implemented in a computer-aided modeling environment, named MODEL.LA. MODEL.LA enables phenomena-based modeling of dynamic systems of arbitrary structure and spatial distribution, hierarchical levels of detail, and multicontext depictions. Additional components allow incorporation of thermodynamic and physical property data, integration of control structures, operational task scheduling, and external models,and assistance for specification and solution of the resulting mathematical model. Application of this environment to several modeling examples, as well as its classroom and industrial deployment, demonstrate the potential benefits of rapid, reliable, and documented chemical process modeling that may be realized from this high-level phenomena-based approach.
by Jerry Bieszczad.
Ph.D.
Miller, Neidi. "Process design and modeling for the production of triacylglycerols (TAGs) in Rhodococcus opacus PD630". Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/70461.
Texto completo"February 2012." Cataloged from PDF version of thesis.
Includes bibliographical references (p. 32-34).
The oleaginous microorganism Rhodococcus opacus PD630 was used to study the characteristics and kinetics of the accumulation of triacylglycerols (TAGs) in cells. In this process, accumulation of TAG is stimulated when a carbon source is present in the medium in excess and the nitrogen source is limiting growth. Under controlled fermentation conditions the organism Rhodococcus opacus PD630 has been shown to grow to high cell density, producing high yields of TAGs (above 50% of cell dry weight) in a relatively short period of time. In this study, the reaction stoichiometry was established and the carbon balance for the process has been effectively closed, accounting for approximately 91% of the total carbon in the system. Several fed-batch strategies were explored at the IL benchtop bioreactor scale. Feeding both carbon and ammonium sulfate as the nitrogen source can sustain cell growth but was found to significantly obstruct the accumulation of TAGs. While these fed-batch strategies did not lead to titer improvements, they did highlight the significance of TAG degradation for growth. To aid in future process design strategy optimization an unstructured kinetic model was developed to describe the dynamics of the fermentation of Rhodococcus opacus PD630 and its triacylglycerol (TAG) production. The kinetic parameters for this model were either measured from experimental data or estimated by fitting the experimental data using least-squares non-linear regression. Global minimum of the sum of squared errors (SSE) between the model prediction and various experimental data sets was found by an iterative process of parameter space exploration. The minimum SSE obtained was 91.229. The proposed model is the first step towards understanding and optimizing the process of lipid production and accumulation in oleaginous organisms.
by Neidi Miller.
S.M.
Wise, Barry Mitchell. "Adapting multivariate analysis for monitoring and modeling of dynamic systems /". Thesis, Connect to this title online; UW restricted, 1991. http://hdl.handle.net/1773/9860.
Texto completoDarira, Rishi. "Modeling demand uncertainty and processing time variability for multi-product chemical batch process". [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000401.
Texto completoPattalachinti, Ravi Kumar. "Modeling and optimization of continuous melt-phase polyethylene terephthalate process". Ohio : Ohio University, 1994. http://www.ohiolink.edu/etd/view.cgi?ohiou1178728743.
Texto completoGopalakrishnan, Varsha. "Nature in Engineering: Modeling Ecosystems as Unit Operations for Sustainability Assessment and Design". The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1500460468877501.
Texto completoKhorami, Hassan. "Multivariate Modeling in Chemical Toner Manufacturing Process". Thesis, 2013. http://hdl.handle.net/10012/8012.
Texto completoHe, Qinghua Qin S. Joe. "Innovative techniques for industrial process modeling and monitoring". 2005. http://repositories.lib.utexas.edu/bitstream/handle/2152/1564/heq44479.pdf.
Texto completoHe, Qinghua. "Innovative techniques for industrial process modeling and monitoring". Thesis, 2005. http://hdl.handle.net/2152/1564.
Texto completoGautami, G. "Modeling and simulation of multiple effect evaporator system". Thesis, 2011. http://ethesis.nitrkl.ac.in/4417/1/main_copy_to_CD(PDF).pdf.
Texto completoSaturnino, Daniel M. "Modeling of Kraft Mill Chemical Balance". Thesis, 2012. http://hdl.handle.net/1807/32881.
Texto completoNoh, Kyungyoon, Jiun-Yu Lai, Nannaji Saka y Jung-Hoon Chun. "Mechanics,Mechanisms and Modeling of the Chemical Mechanical Polishing Process". 2002. http://hdl.handle.net/1721.1/4032.
Texto completoSingapore-MIT Alliance (SMA)
Saleh, Abdullah. "Study Of The Performance Of Batch Distillation Using gPROMS". Thesis, 2011. http://ethesis.nitrkl.ac.in/2625/1/final_Thesis.pdf.
Texto completoKumar, Sushil. "Life Cycle Assessment of the Process Steam Reforming of Methane(SMR)". Thesis, 2015. http://ethesis.nitrkl.ac.in/7981/1/2015_Life_Kumar.pdf.
Texto completoParihari, Arati. "Performance Study of Spray Dryer Using Various Salt Solutions". Thesis, 2009. http://ethesis.nitrkl.ac.in/165/1/Arati.pdf.
Texto completoMahapatra, Dibya Lochan. "Modeling of Fluid Phase Equilibria by PC-Saft EOS: Solubility of Gases/Vapor in Polythylene". Thesis, 2009. http://ethesis.nitrkl.ac.in/352/2/skmaity.pdf.
Texto completoMaity, S. K. "Modeling and Simulation of Solid-Liquid Equilibrium by Perturbed-Chain Statistical Associating Fluid Theory". Thesis, 2003. http://ethesis.nitrkl.ac.in/1325/1/MTech-Thesis.pdf.
Texto completoKumar, Ashish. "Development of Mixed Integer Non-Linear Model for Hydrogen Distribution in them Refinery". Thesis, 2009. http://ethesis.nitrkl.ac.in/1040/1/Ashish.pdf.
Texto completoJavaji, S. K. "Study of Dynamic Behavior of Ethyl Acetate Reactive Distillation Column Using ASPEN PLUS". Thesis, 2009. http://ethesis.nitrkl.ac.in/1532/1/10500022.pdf.
Texto completoMahapatra, N. "Design and Simulation of Cumene Plant using Aspen Plus". Thesis, 2010. http://ethesis.nitrkl.ac.in/1746/1/nirlipt_ethesis.pdf.
Texto completoKumar, S. "Modelling and Simulation of Ethyl Acetate Reactive Distillation Column using ASPEN PLUS". Thesis, 2010. http://ethesis.nitrkl.ac.in/1944/1/3-joined.pdf.
Texto completoM, A. Kumar. "Modelling the Hydrodynamic Characteristics of Gas-Liquid-Solid Fluidized Bed using Artificial Neural Networks". Thesis, 2010. http://ethesis.nitrkl.ac.in/1945/1/FINAL_THESIS.pdf.
Texto completoModi, Sourav. "Application of UNIQUAC model in modeling VLE of acid gas aqueous alkanolamine system". Thesis, 2011. http://ethesis.nitrkl.ac.in/2577/1/combine.pdf.
Texto completoBarman, Ghanshyam. "Congo Red (cr)Removal from Aqueous Solution by Commercial and Laboratory Prepared Low Cost Adsorbents Using Adsorption". Thesis, 2011. http://ethesis.nitrkl.ac.in/3019/1/CONGO_RED__CR__REMOVAL_FROM_AQUEOUS_SOLUTION_BY_COMMERCIAL_AND_LABORATORY_PREPARED_LOW_COST_ADSOR.pdf.
Texto completoMoghekar, Deepak. "Project Report On Modeling and simulation of gas-liquid interfacial area in three phase fluidized and semi-fluidized bed". Thesis, 2008. http://ethesis.nitrkl.ac.in/4317/1/d.pdf.
Texto completoTripathi, Nagesh Kumar. "Production, Purification and Characterization of Recombinant Viral Proteins". Thesis, 2012. http://ethesis.nitrkl.ac.in/4452/1/Full_PhD_Thesis-508CH802.pdf.
Texto completoRay, Minaketan. "Synthesis and characterization of AgBr/SiO2 core/shell nanoparticles". Thesis, 2012. http://ethesis.nitrkl.ac.in/4461/1/Thesis_18.12.12-pdf-_MKRAY.pdf.
Texto completoBiswal, Nihar Ranjan. "Studies on Adsorption and Wetting Phenomena Associated with Solid Surfaces in Aqueous Synthetic and Natural Surfactant Solutions". Thesis, 2012. http://ethesis.nitrkl.ac.in/4464/1/Nihar_R_Biswal_thesis_1-1-13.pdf.
Texto completoGarapati, Vamsi Krishna. "Biodegradation of Petroleum Hydrocarbons". Thesis, 2012. http://ethesis.nitrkl.ac.in/4467/1/Vamsi_Thesis.pdf.
Texto completoMishra, Sambhurisha. "Hydrodynamic Studies of Three-Phase Fluidized Bed by Experiment and CFD Analysis". Thesis, 2013. http://ethesis.nitrkl.ac.in/4598/1/Mtech(R)_Thesis-610ch304.pdf.
Texto completoSingh, Anil Kumar. "Classification of Flow Regimes Using Linear Discriminant Analysis (LDA) and Support Vector Machine (SVM)". Thesis, 2013. http://ethesis.nitrkl.ac.in/4750/1/211CH1040.pdf.
Texto completoAnsari, Mazhar Husain. "Simulation of effects of various parameters in solid waste gasification in a fixed bed reactor". Thesis, 2013. http://ethesis.nitrkl.ac.in/5253/1/109CH0494.pdf.
Texto completoArora, S. "Simulation study of divided wall distillation column". Thesis, 2014. http://ethesis.nitrkl.ac.in/5970/1/E-137.pdf.
Texto completoMohanty, V. "Simulation of methyldiethanolamine-carbon dioxide-water system using equilibrium approach". Thesis, 2014. http://ethesis.nitrkl.ac.in/5972/1/E-139.pdf.
Texto completoMishra, D. P. "Simulation of carbon dioxide - monoethanolamine - water system using equilibrium approach". Thesis, 2014. http://ethesis.nitrkl.ac.in/5974/1/e-141.pdf.
Texto completoPati, A. "Simulation and modelling of divided wall distillation column by programming design equations using MATLAB". Thesis, 2014. http://ethesis.nitrkl.ac.in/5975/1/E-142.pdf.
Texto completoSambit, S. "Simulation and flow analysis through a straight pipe". Thesis, 2014. http://ethesis.nitrkl.ac.in/5977/1/E-144.pdf.
Texto completoAgarwal, A. "Separation of azeotropic mixture by extractive distillation and pressure-swing distillation:computer simulation and economic optimization". Thesis, 2014. http://ethesis.nitrkl.ac.in/5983/1/E-150.pdf.
Texto completoPatra, R. "Rate studies on monoethanolamine-carbon dioxide-water system". Thesis, 2014. http://ethesis.nitrkl.ac.in/6070/1/E-193.pdf.
Texto completo