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 20 of 29 for “"chemical plant"”.
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Dynamic simulation of chemical plant
… 77 for the dynamic analysis and simulation of chemical plants. Its main uses include the investigation of a plant's response to disturbances, the determination of the optimal ranges and sensitivities of controller settings and the simulation of the startup and shutdown of chemical plants. The …
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Dynamic simulation of chemical plant
… in the simulation of the dynamic behaviour of chemical plant. ACES can be harnessed, for instance, to simulate the transients in startups or after a throughput change. ACES has benefited from two existing simulators. The structure was adapted from ICL SLAM and most plant models originate in …
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Response surface study of a characteristic chemical plant
… investment response surface of a characteristic chemical plant indicates unimodality in the valid region, but the optimum design condition with this response surface is strongly affected by the correlation used for the investment. The method used for the design of this type of chemical plant …
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Optimization of chemical plant simulation using double collocation
… constructed for the solution of a wide range of chemical plant simulation models including differential equations and optimization. Double orthogonal collocation on finite elements is applied to convert the model into an NLP problem that is solved either by the VF 13AD package based on successive …
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Development of An Adaptive Kalman Filter for Estimation in Chemical Plant.
… to the on-line estimation of the state of a chemical process has so far met with a limited amount of success due to the inaccuracies and non-linearities of the mathematical models developed to describe the process being studied. To overcome these problems, two theoretical developments are …
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Analysis and cost versus reliability in a multi-echelon supply chain for a chemical plant
… managing various types of uncertainty within a chemical production/inventory system. Later the company can use it to minimize the total cost at any required Cycle Service Level (CSL) under variable demand and production reliability. To solve this problem, we will base historical data to estimate …
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Comparison of Scheduling Algorithms for a Multi-Product Batch-Chemical Plant with a Generalized Serial Network
… scheduling methodologies developed for batch-chemical production are seldom applied in industry (Musier & Evans 1989 and Grossmann et al. 1992). Scheduling decisions may have significant impact on overall company profitability by defining how capital is utilized, the operating costs required, …
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The use of microprocessors in the control of chemical plant with special reference to the use of distributed processors
The advent of the microprocessor has created an enormous impact on both society and industry. In particular, it has provided the technological basis for far-reaching changes in industrial control and automation where attention is focussed on the observable trends in applying microprocessor-based …
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Dynamic modeling and hardware in the loop testing of chemical processes
… for hardware-in-the-loop (HIL) testing of chemical plants. HIL testing is a widespread tool used in industry and academia to bridge the gap between computer simulations and physical experimentation. It provides many advantages to the standard development path of building a physical …
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Cogeneration as related to phosphorus incineration
… the optimum cogeneration potential of a typical chemical plant, which may be paralleled to for any given medium to large multiprocess plant. The optimum cogeneration process was weighed against process risks and economics with respect to return on dividends. Second, the optimum cogeneration …
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Low-cost and Energy-efficient Solutions for Multicomponent Distillation
… accounts for 90-95% of all the separations on a chemical plant, and for about 3% of the world energy consumption. Even modest improvements to the process of distillation can have tremendous impact on the chemical economy world over. The goal of a major part of this thesis is to use process …
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Utilization of thermal plasma for conversion of thermoplastic waste to oil products in a pyrolysis reaction
Chemical recycling of waste plastics has gained attention in last decade with nearly 170 million tonnes of deposited waste plastics annually. A chemical process known as pyrolysis converts thermoplastic waste to oil products. In this research work, direct current thermal plasma is designed and used …
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A Bayesian approach to feed reconstruction
… composition of an unknown feedstock in a chemical plant by combining information from a few bulk measurements of the feedstock in the plant along with some detailed composition information of a similar feedstock that was measured in a laboratory. The complexity of the Bayesian model …
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An investigation into vanadium contamination of soil and its effects on plants
… the disposal of liquid industrial wastes from a chemical plant in the eastern Transvaal. A review of the literature showed that although the emission of vanadium into the environment is on the increase, very little information is available regarding its behaviour and impact as an environmental …
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Stochastic mapping for chemical plume source localization with application to autonomous hydrothermal vent discovery
… mapping framework for autonomous robotic chemical plume source localization in environments with multiple sources. Potential applications for robotic chemical plume source localization include pollution and environmental monitoring, chemical plant safety, search and rescue, anti-terrorism, …
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Comparison of deterministic, stochastic and fuzzy logic uncertainty modelling for capacity extension projects of DI/WFI pharmaceutical plant utilities with variable/dynamic demand
… the methods of FL in simulating uncertainty in chemical plant utilities including HPW systems in typical cases whereby extreme events, for example peaks in demand, or day-to-day variation rather than average values are of interest. The average production output or other statistical measures may, …
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Eficiência alelopática de algumas espécies vegetais sobre o amendoim e plantas daninhas
Allelopathy is an interference phenomenon where a chemical plant can inhibit the development with also can stimulate the growth of others and has been considered its application in weed control in commercial crops. This study aimed to evaluate the allelopathic potential of some species on …
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Urban Brownfield Integration – Site Planning and Design Implementation of the Baltimore Community Center
… large, waterfront sites, often contaminated with chemicals and empty industrial buildings. These waterfront sites – designated "Urban Brownfields" – became important potential centerpieces to the revitalization of the cities where manufacturing facilities were slowly being replaced by buildings …
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