Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Steady-state simulation"”.
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Steady-state simulation of the HYGAS coal gasification process.
Thesis. 1977. M.S.--Massachusetts Institute of Technology. Dept. of Chemical Engineering.
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Dynamic reduced order modeling of entrained flow gasifiers
… reactors. The ROM was successfully validated for steady-state simulation of four experimental gasifiers. The throughputs of these gasifiers range from 0.1 to 1000 metric tonnes per day (3 kWth - 240 MWth). Sensitivity analysis was performed to identify the parameters most important to ROM …
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Modeling of industrial power distribution circuits for voltage sag and fault analysis
… The induction motor model is validated, with steady-state simulation and direct-line starting being documented in this thesis. The study progresses to modeling sensitive loads by incorporating an asynchronous machine (ASM) powered by the enhanced VFD under LVRT conditions. Finally, the …
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Approaches to Simulation of an Underground Longwall Mine and Implications for Ventilation System Analysis
… mines. Currently, there are several options for simulation of mine ventilation. This research was conducted to rapidly simulate an underground longwall mine, especially for the use of tracer gas in an emergency situation. In an emergency situation, limited information about the state of mine …
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Applications of stochastic simulation in two-stage multiple comparisons with the best problem and time average variance constant estimation
… methods for comparing alternatives using simulation. Suppose there are a finite number of alternatives to compare, with each alternative having an unknown parameter that is the basis for comparison. The parameters are to be estimated using simulation, where the alternatives are simulated …
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Computer Program Development for the Design of IFAS Wastewater Treatment Processes
… wastewater treatment processes. IFAS enables the steady-state simulation of nitrification-denitrification processes as well as carbonaceous removal in systems utilizing integrated media, but this current version supports only sponge type media. The IFAS program was developed by incorporating …
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Effect of DERs on the Voltage Stability of Transmission Systems using a Voltage Stability Index
… and increased growth of DERs integration. A steady-state voltage stability index is used to generate a heat-map that identifies the areas where the system can go unstable in events like the loss of the renewable generation under a bus. The steady-state simulation is performed on the IEEE 14 …
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A methodology for evaluating and selecting processes for natural gas conditioning
… These evaluations are then modelled using a steady-state simulation package. From the results of the modelling the cost data received are correlated and defined with respect to the design or sizing parameters. This allows comparisons between different process systems to be made in terms of …
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Unified Steady-state Computer Aided Model For Soft-switching DC-DC Converters
… engineers and students have heavily depended on simulation packages such as Pspice to run transit and steady-state simulation for their circuits. The majority of these circuits, such as soft switching cells, contain complicated modes of operations that require the Pspice simulation to run for a …
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Preventive assessment and enhancement of power system voltage stability: an integrated approach of thermal and voltage security
… have been coupled to the fast time-domain quasi steady-state simulation used in the ASTRE software developed at the University of Liège.
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Effective Estimation of Marginal Quantiles in Steady-State Simulations
Simulation is perhaps the most widely used systems-engineering tool in a variety of engineering and scientific domains. Large-scale applications of simulation provide critical support for planning and analysis in the governmental and military sectors as well as in numerous industries, including …
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Multiscale simulation of methane assisted fluidized bed biomass gasification
… reactor network model (CRNM) enabling the steady-state simulation of a variety of feedstocks over a wide-range of conditions. The CRNM consists of three independently validated and parameterized sub-models that consider i) particle devolatilization, ii) char conversion, and iii) …