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The book is aimed at teaching the reader the fundamentals of single-screw extrusion such that fast troubleshooting and process optimization and design are possible. The fundamental processes that are occurring in the machine are developed from the natural reference point of a rotating screw rather the traditional rotating barrel. These fundamentals are then combined with the chemistry of polymers and the physical properties related to processing to troubleshoot and optimize extrusion processes. Many industrial extrusion problem case studies will be presented. In each case study, the root cause of the problem will be identified along with the solution.
A highly practical troubleshooting tool for today's complex processing industry<br> <br> Evolving industrial technology-driven by the need to increase safety while reducing production losses-along with environmental factors and legal concerns has resulted in an increased emphasis on sound troubleshooting techniques and documentation. Analytical Troubleshooting of Process Machinery and Pressure Vessels provides both students and engineering professionals with the tools necessary for understanding and solving equipment problems in today's complex processing environment.<br> <br> Drawing on forty years of industrial experience in the petrochemical, transportation, and component manufacturing industries, the author introduces analytical models that utilize simple mathematics to provide engineers with the information needed to understand equipment operation and failure modes. This will allow engineering professionals to talk intelligibly with manufacturers, implement modifications required for continued operation, and ultimately help them save millions of dollars in lost production or warranty claims.<br> <br> Readers will find in-depth coverage of factors that can cause equipment failure, including:<br> * Component wear and fretting<br> * Vibration of machines and piping<br> * Instabilities and sizing of pumps and compressors<br> * Thermal loads and stresses<br> * Gear, bearing, shafting, and coupling loading<br> * Corrosion and materials of construction<br> <br> By striking a balance between analytical and practical considerations, each potential problem area is illustrated with case studies taken from the author's own extensive experience and accompanied by methods that can be used to address a variety of related challenges.
Major advances in instrumentation and technology have made high-performance liquid chromatography (HPLC) a pervasive tool in virtually all areas of chemical and biomedical research today. Despite HPLC's enormous growth, technical problems still bedevil most users at least occasionally. Based on their immensely successful short courses, Dolan and Snyder's landmark new book --Troubleshooting LC Systems--now makes available to every practicing chromatographer the authors' wealth of expertise from years of hands-on troubleshooting of real-world LC problems--problems that routinely cause crises and unproductive downtime in nearly every lab. Believing that successful troubleshooting requires an understanding of the basics, Dolan and Snyder open by setting forth all the fundamental principles of LC operation, then move on to a microscopic description of all the elements of LC devices, to lay out their optimal preventive maintenance routines, and ultimately to offer an unprecedentedly thorough treatment of each and every facet of troubleshooting. Displaying a special tutorial mastery--honed to a fineness during their ongoing teaching and consulting activities, and a well-received feature column in LC Magazine--the book's chapters cover: automation and robotics * approaches to troubleshooting * reactions of samples * basic separation techniques * valves, tubing, syringes * band broadening and tailing * preventive maintenance * column packing and flushing * individual LC modules * troubleshooting principles * reagents and buffering * specific problems in separation * ghost and vacancy peaks * quantitation and calibration * pumps, seals, and pistons * gradient elution problems * column composition * concentration and blockages * sample cleanup * temperature and mixing effects * detectors and recorders * column packing and flushing. In short, Dolan and Snyder's eminently practical new guide to Troubleshooting LC Systems is an essential laboratory handbook--one that empowers expert and novice chromatographer alike to solve every sort of practical laboratory problem on a day-to-day basis. No one using an LC system should be without it!
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