[BLANK_AUDIO]Welcome.My name is Margaret Wooldridge, and I'mthe instructor for the Introduction toThermodynamics class.I wanted to start by giving you a briefintroduction to who I am.I'm a professor in the MechanicalEngineeringDepartment here at the University ofMichigan.I also hold an appointment in theAerospace Engineering Department.To give you some background on how I spendmytime, my research interests are in compo,combustion and propulsion systems.I also work in the transportation andstationary power generation.In particular we're interested indevelopingnew methods to improve efficiencies andreducethe impact of emissions and pollutants on,of these systems on the environment.And in this class we'll be talking aboutthese areas.And they are directly relevant tothermodynamics.And your thermodynamic skills can be usedto explore these systems.And we'll show you some of those skills inthis class.Now, first we need to discuss, what isthermodynamics all about?And I have to say this is one ofthe most powerful topics that you willever explore.Thermodynamics is the study oftransferring energy.Obtaining energy, transferring energy, andapplying energy.So, you can see all sorts of applicationsof energy transfer around you.And we'll develop skills, and analyticaltools that allow us to understand andquantify those systems.So to be very specific, we're going totalk about topics of mass, and energyconservation principles.We'll look at first law analysis, and asthey apply to open and closed systems.We'll investigate and define propertiesthat allow us to explore these systems.And we'll look at the behavior andapplicationof specific thermodynamic systems atsteady state conditions.So our course objectives are tofamiliarize you with these basic concepts.The concepts of state relations andconservation principles.We're going to teach you how to quantifythe state of simple, pure substances.Including all three phases, solid, liquidand gas phases.I'll teach you how to evaluate energy,work and heat transfer processes.And how those processes interact.We're going to investigate theconservationlaws for mass and energy systems.And we'll apply those to example systemsso you canhave some understanding, particularly forstationary and transportation powersectors.What are the units involved, what are thenumbers involved, quantities and scale.And we'll teach you the applicationof process knowledge to analyze completesystems.Those are our course objectives.Here are the course outcomes.So after taking this course, you should beable to identify subsystems.You should be able to indicate whether ornot there's work transfer, heat transferand what's theimportant of the thermodynamic state forthose systems interms of temperature, pressure, density,and other thermodynamic variables.Given a set of properties you should beable toidentify the phase and the remainingproperties for a substance.If I give you a physical setup, forexample if it's anengine, a jet engine, or if it's a stove,you should be ableto determine what are the work and heattransfer mechanisms, and whatare the most reasonable approximationsthat you can make to analyse this system.Once you have that physical setup, thedevice, and a process you should beable to compute, to quantify the rates ofwork and heat transfer as well.You should be ableto formulate an ideal approximation, aswell as understandhow an actual system might differ from anideal system.And given an actual device, you shouldbe able to correspondingly create an idealdevice.So we can have both real and actualsystems and we should understandquantitatively what arethe differences between real and actualsystems, andwe should understand how energy processesaffect the environment.To help us understand and accomplish thesecourse objectives, we're going touse some references and tools that arefreely available on the Internet.So those are listed here on this slide.The first is the US Department of EnergyFundamental Handbook on Thermodynamics,Heat Transfer and Fluid Flow.In reality, there are three handbooks herein this series, weare only going to use the thermodynamicsportion of that set.There's a thermodynamics andchemistry second edition that was writtenby Howard DeVoe.He provided that textbook free on hiswebsite, and that link is shown here.And the third resource that we'll use isan online calculator for steam,in other words water properties whichincludesalso properties for carbon dioxide andammonia.There are many online calculators that areavailable to you.This just happens to be the one that Ichose for this course.You're welcome to use whatever tools youfind theeasiest for you to accomplish the goals ofthis class.The weekly reading assignments are whatwe'll discussnext, and they're shown in this courseschedule.So all the reading material is from thosetwo reference texts, the USDepartment of Energy Thermodynamicshandbook, and theThermodynamics and Chemistry handbook byProfessor Devoe.So the chapters and reading pagesare listed here.And the topics are listed here, that we'llbegoing through throughout the eight weeksof this course.We're going to start with the basic sowe'll need some tools inorder for us to analyze thesethermodynamic systems, these energytransfer systems.And that includes concepts, definitions,and units.We'll have a good discussion of units veryearly on in this course.Once we have that information we can startdefining thermodynamic properties.And in particular we'll look at how we canmeasure temperature and pressure.How we can describe the states ofdifferent systems andprocesses and pathways that connect us todifferent thermodynamic states.After that, we'll discuss the energy of asystem, thefirst law of thermodynamics, which is theconservation of energy,heat and work transfer, energy analysis ofclosed and opensystems, and how those energy transfersystems use energy, enthalpy,and internal energy.And that will be it.We'll do many examples throughout theclass, so that you canhave some idea of how to apply thesetools, and thisreading material is really meant tosupport the lectures and thecontent that we have right now, that weprovide in these lectures.Some frequently asked questions, we'll tryand answer those right now.What are the prerequisites for taking thisclass?You should have some introductorybackground in chemistry andphysics and calculus.This is going to be important forunderstanding some of the thermodynamicprinciples, and thecalculus is necessary for some of theanal, some of the analysis that we do.Specifically you should understand how tointegrateor differentiate a quest differentiate anequation.What will this class prepare me for?Well, thermodynamics in the academic worldis aprerequisite for many other follow-oncourses, like heattransfer, internal combustion engines,stationary powergeneration, propulsion and gas dynamicsare justa few classes that build on the foundationwe will establish in thermodynamics.In the real world, energy is one ofthe top challenges we face in a globalsociety.We know that energy demands are deeplytied to theother major challenges which includepoverty, and health, and clean water.And understanding how energy systems workis keyto understanding how to meet global needsfor energy.And because energy demands are only goingto increase,this course provides a foundation for manyrewarding professional careers.Now, based on what we just briefly talkedabout, how thermodynamics is the study ofenergy.Transforming, applying, obtaining energy.I'd like you to pause for a moment andlook around you, or maybe look outthe window and identify five systems whereyouthink energy and energy transfermechanisms are important.And when we come back we'll discuss a fewof those examples.Thank you and welcome to the class.