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Course Content FormPIMA COMMUNITY COLLEGE

Classification: TransferEffective Term: 201210

ENG 232Thermodynamics

Initiator:Alexander ShayevichCredit Hours: 4.00Campus:WestLecture Periods: 4.00Date:09/30/2010Lab Periods: 0.00

Description:Basic laws and examples of engineering applications of macroscopic thermodynamics. Includes an introduction to concepts and definitions, energy and the first law of thermodynamics, evaluating properties, control volume energy analysis, the second law of thermodynamics, using entropy, vapor power systems, gas power systems, and refrigeration and heat pump systems.

Prerequisite(s): MAT 241, PHY 216.

Performance Objectives: Upon successful completion of this course, the student will be able to:Apply SI and English units for mass, length, time, force, and temperature.Explain absolute pressure and gage pressure, as well as methods and instruments used for its measurement.Convert temperature readings in Celsius, Fahrenheit, Kelvin, or Rankine scales to any other scale.Identify an appropriate system, its boundary, and its surroundings.Describe the difference between an isothermal process and an adiabatic process.Evaluate kinetic and potential energy, work and power in various engineering systems including mechanical, electrical, and thermodynamic.Identify and quantify heat transfer by various modes including conduction, radiation, and convection.Apply closed system energy balances.Conduct energy analyses for systems undergoing thermodynamic cycles.Analyze saturation temperature, saturation pressure, state principle, quality, enthalpy, specific heat, and ideal gas model.Retrieve property data of various fluids and gases from the appropriate tables, using the state principle of fix states and linear interpolation when required.Sketch T-v, p-v, and p-T diagrams, and locate principal states on these diagrams.Determine specific volume, enthalpy, and internal energy of a simple compressible system in the midst of a liquidvapor phase change using quality and the appropriate tables.Apply the incompressible substance model and use the generalized compressibility chart to relate p-v-T data of gases.Apply the ideal gas model for thermodynamic analysis.Explain the concepts of mass flow rate, mass rate balance, volumetric flow rate, steady state, flow work.Identify devices such as muzzle, diffuser, turbine, compressor, pump and heat exchanger.Apply control volumes and the principles of conservation of mass and energy rate balance to model steady state flow through various mechanical devices.Apply mass and energy balances for the analysis of transient flow, using control volumes, appropriate assumptions, and property data.Define the concepts of reversible process, irreversible process, internal and external irreversibilities internally reversible process, Carnot corollaries, and Carnot efficiency.Describe the Clausisus and the Kelvin-Planck statement of the second law of thermodynamics.Evaluate the performance of power cycles and refrigeration and heat pump cycles accounting for irreversibilities.Apply entropy balances for closed systems and for control systems.Use entropy data appropriately to include: retrieving data from appropriate tables, using quality to evaluate the specific entropy of two-phase liquid-vapor mixtures, sketching T-s and h-s diagrams and locating states on such diagrams, determining s of ideal gases with constant or variable specific heats, evaluating isentropic efficiencies for turbines, nozzles, compressors, and pumps with ideal gases.Compute heat transfer for close systems.Sketch schematic diagrams and accompanying T-s diagrams of Rankine, superheat, and reheat vapor power cycles.Apply conservation of mass and energy, the second law, and property data to determine power cycle performance.Identify the effects on Rankine cycle performance of varying steam generator pressure, condenser pressure, and turbine inlet temperature.Sketch p-v and T-s diagrams of the Otto, Diesel, and dual cycles, applying the closed system energy balance and the second law of thermodynamics.Sketch the T-s diagrams of vapor-compression refrigeration and heat pump cycles.List the advantages and disadvantages of various refrigerants commonly in use.

Outline:Introduction: Concepts and DefinitionsUsing thermodynamicsDefining systems and describing their behaviorMeasuring mass, length, time, and forceSpecific volume and specific pressureMeasuring temperatureEnergy and the First Law of ThermodynamicsReviewing mechanical concepts of energyEvaluating energy transfer by workEnergy of a systemEnergy transfer by heatEnergy balance for closed systemsEnergy analysis of cyclesEvaluating Propertiesp-v-T relationRetrieving thermodynamic propertiesGeneralized compressibility chartIdeal gas modelInternal energy, enthalpy, and specific heats of idea gasesEvaluating u and h of ideal sassesPolytropic process of an ideal gasControl Volume Energy AnalysisConservation of mass for a control volumeConservation of energy for a control volumeAnalysis of control volumes at steady stateTransient analysisThe Second Law of ThermodynamicsUsing the second law and statements of the second lawReversible and irreversible processesApplying the second law to thermodynamic cyclesKelvin temperature scaleMaximum performance measures for cycles operating between two reservoirsCarnot cycleUsing EntropyDefining entropy changeRetrieving entropy dataEntropy change in internally reversible processesEntropy rate balance for control volumesIsentropic processesIsentropic efficiencies of turbines, nozzles, compressors, and pumpsHeat transfer and work in internally reversible, steady-state flow processesVapor Power SystemsModeling vapor power systemsAnalyzing vapor power systems: Rankine cycleImproving performance: superheat and reheatGas Power SystemsEngine terminologyAir-Standard otto cycleAir-Standard diesel cycleAir-Standard dual cycleBrayton cycleRegeneration, reheat and compression with intercoolingRefrigeration and Heat Pump SystemsVapor refrigeration systemsAnalyzing vapor-compression refrigeration systemsHeat pump systems