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Showing 1 to 20 of 111 for “"process simulation"”.
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Greenhouse Tomatoes: Process Simulation
… CO2 being externally supplied to the system. All simulations had yields above 3-8 kg/m2/yr, which is expected of field-grown tomatoes. However, a few locations were below the expected range of 50-80 kg/m2/yr yield for greenhouse-grown tomatoes. CO2 enrichment in most cases resulted in increased …
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Process simulation of manufacturing SS Wiener Sausages
… It is essential to have a good overview of all processes in the system and to know the maximum throughput the system can handle. Continuous improvements has to be ongoing every day. Simulation is a useful tool to analyze, investigate, and test new methods and layout within production systems. …
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Virtual three-axis milling process simulation and optimization
… comprehensive modeling of the machining processes is a fundamental requirement in identifying optimal cutting conditions which result in high productivity rates without violating accuracy throughout the part production process. This thesis presents generalized virtual simulation and …
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Automated input data management in manufacturing process simulation
… Management (IDM) is a time consuming and costly process for Discrete Event Simulation (DES) projects. Input Data Management is considered as the basis of real-time process simulation (Bergmann, Stelzer and Strassburger, 2011). According to Bengtsson et al. (2009), data input phase constitutes on …
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Ordering Strategies for Sparse Matrices in Chemical Process Simulation
… of supercomputers in the areas of chemical process simulation, design and optimization requires the use of novel computational strategies. Frontal methods have been shown to effectively use the vector and parallel capabilities of such machines to solve the large, sparse matrices which arise …
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Simultaneous modular concept in chemical process simulation and optimization
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1985.
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Dimensional Accuracy of Thermoset Polymer Composites: Process Simulation and Optimization
Finally, the three-dimensional finite element code is utilized to predict the viscoelastic response of a woven composite substrate for multilayer circuit board applications. Comparisons between numerical predictions and experimental data clearly indicate that the creep compliance of the composite …
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Vector and parallel algorithms for chemical process simulation on supercomputers
… technology, including vector and parallel processing architectures, provide the computational power to realistically model, simulate, design, and optimize complex chemical processes. A critical computational step in large-scale chemical process simulation using rigorous equation-based …
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A hybrid direct-iterative linear solver for chemical process simulation
… linear equation systems arising in chemical process simulation. The motivation for this work is to enable simulations of large, complex, and realistic models requiring the computing power of high performance machines. The objective is carried out by combining the reliability of direct sparse …
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Verification of a three-dimensional resin transfer molding process simulation model
… were fabricated by the Resin Transfer Molding process. Tests were completed utilizing both perimeter injection and center-port injection as resin inlet boundary conditions. The mold was instrumented with FDEMS sensors, pressure transducers, and thermocouples to monitor the process conditions. …
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Verification of a Three-Dimensional Resin Film Infusion Process Simulation Model
… transfer molding/resin film infusion (RTM/RFI) process simulation model. The model incorporates resin flow through an anisotropic carbon fiber preform, cure kinetics of the resin, and heat transfer within the preform/tool assembly. The computer model can predict the flow front location, resin …
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Process simulation and economic evaluation of a solar power plant using Aspen
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1980.
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STOCHASTIC MODELING OF LIMIT ORDER BOOKS: CONVERGENCE OF THE PRICE PROCESS, SIMULATION AND APPLICATIONS
In the past two decades, electronic limit order books (LOBs) have become the most important mechanism through which securities are traded. A LOB contains the current supply and demand of a security at different prices and it can be modeled as a random, state-dependent, and high-dimensional system …
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Exploring construction process simulation as part of the digital twin concept in real-world contexts
… approaches cannot reflect the inherent dynamic processes of construction works and hinder successful management. With advancing digitalisation, there is potential to change conventional practices. Methods like discrete event simulation can help manage construction processes by providing insights …
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Quantitative Assessment Of Software Development Project Management Issues Using Process Simulation With System Dynamics Elements
… estimation methods and new models of lifecycle processes other than the common waterfall process. This work has developed a new simulation model of the spiral development lifecycle as well as an approach for using simulation for cost and schedule estimation. The goal is to provide a tool that …
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Process simulation and experimental investigation of biofuel production in a high rate anaerobic digestion process
… three R’s) of wastes. The anaerobic digestion process is one of the most important methods that used to treat the wastes and at the same time generate energy out of it. The anaerobic digestion process generates a mixture of methane and carbon dioxide gases which is known as biogas.</p> <p>The …
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High-temperature defect engineering for silicon solar cells : predictive process simulation and synchrotron-based microcharacterization
… below even one part per billion. The lack of process simulation tools that account for the behavior of such impurities hinders efforts at increasing efficiency in commercial materials and slows the time-to-market for novel materials. To address the need for predictive process modeling focused …
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Evaluation of Nitrification Inhibition Using Bench-Scale Rate Measurements, Profile Sampling, and Process Simulation Modeling
… treat 30 mgd using a 3-stage Virginia Initiative Process (VIP) biological nutrient removal (BNR) process. The majority of the influent is domestic, but there is also a large industrial contribution, particularly from a hog processing facility, landfill leachate, and significant loads from septage …
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Carbothermic-vacuum reduction of chromium oxide in electrolytic chromium: a hybrid phenomenological-stochastic process simulation model
Includes bibliographical references (pages 179-180).
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