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Engineering Experimentation Functional Types of Experiments
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Determining Material Properties Viscosity Density Heat Capacity Strength Etc.
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Component Parameters and Performance Indices Process Unit Components Sensors Controls Etc.
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System Parameters & Performance Assemblies of Components Unit Operations Blocks of Unit Operations Production Process
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Evaluate and Improve Theoretical Models Always looking for better models Process Simulation Evaluating models to determine limits, risks in accepting data Somewhat the class of experiments we often do in CHEN3820 and 4860 (Evaluate)
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Product and/or Process Improvement Statistical designed experiments most appropriate (“DOE” or “DOX”) Ongoing process/product monitoring through Statistical Process Control (SPC) techniques These two work in tandem as technical part of modern management systems Will be our focus from here out
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Exploratory Experimentation “Basic Research” Determine nature of newly discovered or previously unexplained physical phenomena Creative Process; less focused than others
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Acceptance Testing Used to verify that equipment or product meets criteria: –Performance standards –Health & Safety standards If acceptable, complete purchase
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Physical Model Analogues Computer Simulation becoming better but still place for model testing Scale up: –bench scale – pilot scale – production scale Flow testing in a wind tunnel for example: –Testing vs. model
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Accelerated Testing Testing to replicate aging in reasonable amount of time Automated repeated operation of components Temperature swings, etc
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Educational Teach and learn using experimental systems –Demonstrations –“Hands on” learning –False starts, delays, mistakes, misconceptions part of real processes and trouble shooting
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Educational Lab Projects Define problem Plan of attack Design system Build apparatus Test apparatus Debug apparatus Iterate
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Most Important Plan, plan, plan Consider information you need and plan experiment that will get you that info. Plan and practice technique to minimize systematic errors Anticipate the unexpected Know your equipment
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