In the early 1980s the first spreadsheets – VisiCalc and Lotus 1-2-3 – made microcomputers a practical everyday tool for chemical engineers. But this was difficult stuff, often left to departmental experts and not for one-off use. Since then, advances in computer power and mathematics have enabled both highly complex time-independent optimizations such as protein folding, and also dynamic simulations of gas flows, combustion modelling, and advanced process control.įor many decades, libraries of numerical methods were available on mainframes and minicomputers to anyone with the skill to write their own mathematical models. But since it is often easier to write differential equations than to solve them, practical solutions to many engineering design problems had to wait until computers could provide brute-force solutions (“numerical methods”). Much of the mathematics underlying heat and mass transfer dates back to the 18th and 19th centuries. Accordingly, mathematical models of physical, chemical and thermal phenomena lie at the core of engineering, many branches of chemistry, and increasingly the biological sciences too. Only when we can forecast how a process or a molecule will behave, independently of experiment, can we claim real understanding. Prediction is a vital part of the scientific method. Open source simulators offer a serious alternative to commercial software in several areas, while powerful general-purpose modelling tools and “multi-scale” models are blurring the boundaries between different types of simulation. Computational fluid dynamics and molecular modelling, in contrast, have had more room to advance, and are now able to replace a great deal of experimental work. Flowsheet simulators, a defining tool for every chemical engineer since the 1990s, have seen incremental improvements in power and usability over recent years. Written for students and academics in the field of process design, Chemical Process Design and Simulation is a practical and accessible guide to the chemical process design and simulation using proven software.As engineers and scientists strive to do more with less, computer modelling has become essential to cut costs, speed development and reduce uncertainty when designing everything from processes to molecules. This important resource: Includes information on the application of both the Aspen Plus and Aspen Hysys software that enables a comparison of the two software systems Combines the basic theoretical principles of chemical process and design with real-world examples Covers both processes with conventional organic chemicals and processes with more complex materials such as solids, oil blends, polymers and electrolytes Presents examples that are solved using a new version of Aspen software, ASPEN One 9 The final section covers plant design and simulation of processes using nonconventional components. In addition, to aid in comprehension, solutions to examples of real problems are included. The author also explores the design of new plants and simulation of existing plants where conventional chemicals and material mixtures with measurable compositions are used. The text reviews the design and simulation of individual simple unit operations that includes a mathematical model of each unit operation such as reactors, separators, and heat exchangers. The author describes the basic methodologies for computer aided design and offers a description of the basic steps of process simulation in Aspen Plus and Aspen Hysys. A comprehensive and practical resource, the text uses both Aspen Plus and Aspen Hysys simulation software. A comprehensive and practical resourĬhemical Process Design and Simulation is an accessible guide that offers information on the most important principles of chemical engineering design and includes illustrative examples of their application that uses simulation software. A comprehensive and example oriented text for the study of chemical process design and simulationĬhemical Process Design and Simulation is an accessible guide that offers information on the most important principles of chemical engineering design and includes illustrative examples of their application that uses simulation software.
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