MAE 301 Introduction to Thermodynamics, Fall 2011

2. Analyze processes involving ideal gases and real substances as working fluids in both closed systemsand open systems or control volumes to determine process diagrams, apply the first law ofthermodynamics to perform energy balances, and determine heat and work transfers.• Determine the pressure-volume relation for processes and plot the processes on P-v and diagrams.• Calculate the boundary work for a variety of processes for closed systems.• Apply the first law to closed systems containing ideal gases, steam, or R-134a to determine heattransfer, work, or property changes during processes.• Apply the first law to steady-flow open systems containing ideal gases, steam, and refrigerant-134ato determine heat transfer, work, and property changes during processes.3. Analyze systems and control volumes through the application of the second law.• Determine the efficiency of heat engines and compare with the Carnot heat engine efficiency.• Determine the coefficient of performance of refrigerators and heat pumps and compare withrefrigerators and heat pumps operating on the reversed Carnot cycle.• Determine entropy changes for both ideal gases and real substances.• Determine the properties of a working fluid at the end of an isentropic process.• Plot processes on both P-v and T-s diagrams.• Apply both the first and second laws to determine heat transfer, work, and property changes duringprocesses occurring in both closed and open systems.4. Analyze the basic Otto and Rankine cyclesPOLICIES AND PROCEDURES1. Students are expected to be familiar with the University policy on academic integrity found atwww.ncsu.edu/stud_affairs/osc/AIpage/acaintegrity.html2. Reasonable accommodations will be made for students with disabilities perwww.ncsu.edu/policies/academic_affairs/courses_undergrad/REG02.20.1.php3. There will be three quizzes and a final examination. The format of the quiz is closed book, with propertytablet book and one page note sheet. The following are the only calculators that will be permitted in theclassroom during tests and the final exam and are the only ones allowed on the Fundamentals ofEngineering Exam:Casio: fx-115 MS, fx-115 MS Plus, fx-115 MS SR, fx-115 ESHewlert Parckard: HP 33s, HP 35s,Texas Instruments: TI-30Xa, TI-30Xa SOLAR, TI-30Xa SE, TI-30XS Multiview, TI-30X IIB, TI-30X IIS,TI-36X II, TI-36X SOLAR4. Arrangements for missed quizzes will be made on an individual basis provided you have an excusedabsence as defined by University attendance regulation (www.ncsu.edu/policies/academic_affairs/courses_undergrad/REG02.20.3.php ).Missed homework cannot be made up once the solution is posted. For the case of missed homework with anexcused absence, that homework grade will not be included in the calculation of homework average.5. Class attendance will not be taken. However, many example problems will be solved during class andany questions you may have during the lecture will be answered.6. Homework problems will be assigned once a week and will be taken up at the beginning of class, gradedand returned. Grading will be based on the combination of format and the correct result.7. All homework must be neatly prepared, using only one side of clean, unused engineering paper. Yourname, date and problem number must be on each homework problem. If a homework problem takes morethan one page, the pages must be numbered in the upper right-hand corner and then stapled together in theupper left-hand corner. Each new problem must start on a new page. The following procedure isrequired.MAE 301 2

• State the problem (Given: & Find:) and draw the appropriate sketches.• State clearly the assumptions you make and the basic equations you use. Be sure to show all unitconversions in your solution.• If you present a graph as part of a solution, label the axes, the curve; include the units and choose a scalethat can be easily interpreted.• Block your final answer or conclusion so that it stands out.This solution methodology is demonstrated in the sample problem included with this syllabus.10. You may work in groups on the required homework. However, individual solutions must be handed in(no photo copies will be accepted). Possession of copies of a solution manual by students is prohibited.11. Weather Policy: If WAKE COUNTY PUBLIC SCHOOLS are canceled on the day an exam isscheduled the exam will be rescheduled for the following class period.12. The Honor Pledge: “I have neither given nor received unauthorized aid on this test or assignment,”will be in effect for all exams and the computer project.Online class evaluations will be available for students to complete from Nov. 18 th to Dec. 7 th . Theevaluations become unavailable once final exam period begins, 8AM Dec. 8 th . Students will receive anemail message directing them to a website where they can login using their Unity ID and complete theevaluations. All evaluations are confidential; instructors will not know how any one student responded toany question, and students will not know the ratings for any instructors.Evaluation website: https://classeval.ncsu.edu/Student help desk: classeval@ncsu.eduMore information about ClassEval: http://www.ncsu.edu/UPA/classeval/MAE 301 3

SchedulePer. Date Topic Reading Homework1 Aug.17Intro, Definitions, Units, Systems, Properties,Cycles, State postulates, Temperature, 1.1-1.13Pressure, Problem solving2 Aug.22 Energy, Heat transfer, Work, 2.1–2.4 AS: HW13 Aug.24The First Law of Thermodynamics,Energy conversion efficiencies2.5-2.74 Aug.29 Pure substance, Phase-change 3.1-3.3DUE: HW1AS: HW25 Aug.31Property diagrams, Thermodynamics propertytables3.4, 3.5Sept.05 No class – labor day6 Sept.07The ideal-gas equation of state,Compressibility factor, other eqns of state3.6-3.87 Sept.12Moving boundary work, Energy balance forclosed systems, Specific heats4.1-4.28 Sept.14Internal energy, Enthalpy, Specific heats forideal gases4.49 Sept.19 Quiz #1 (Chapters 1-3)10 Sept.21Internal energy, Enthalpy, Specific heats ofSolids and Liquids4.511 Sept.26 Mass balance for control volumes 5.1Flow work and the energy of a flowing fluid,12 Sept.28 Energy balance for steady flow systems 5.2, 5.3(potential review class)13 Oct. 03Oct. 0514 Oct. 1015 Oct. 1216 Oct. 17Some steady-flow engineering devices,Nozzles, DiffusersNo class, Fall BreakTurbines, Compressors, Throttling valves,Mixing chambersHeat exchangers, Pipe and duct flow,Unsteady-flow processIntroduction to the Second Law, Thermalreservoirs, Heat engines, Refrigerators, Heatpumps, Perpetual-motion machines17 Oct. 19 Quiz #2 (Chapters 4-5)18 Oct. 2419 Oct. 2620 Oct. 3121 Nov.02Reversible and Irreversible processes, Carnotcycle, Carnot principles, Thermodynamictemperature scaleCarnot heat engine, Carnot refrigerator andheat pump, Entropy, The increase of EntropyPrincipleEntropy change of pure substance, Isentropicprocesses. BooProperty diagrams involving entropy, What isentropy, T ds relations, Entropy change ofliquids and solidsDUE: HW2AS: HW3Due: HW 3AS: HW 4DUE: HW4AS: HW5MAE 301 45.45.45.4, 5.56.1-6.5DUE: HW5AS: HW6DUE: HW66.6-6.9 AS: HW76.10, 6.11, 7.1, 7.27.3, 7.47.5-7.8DUE: HW7AS: HW822 Nov.07 Entropy change of ideal gases 7.9 DUE: HW8

23 Nov.09Reversible steady-flow work, Compressorwork, Isentropic efficiencies of steady-flowdevices24 Nov.14 Entropy balance 7.1325 Nov.16Exergy and second law analysis, Exergytransfer, Exergy balance26 Nov.21 Quiz #3 (Chapters 6 and 7)Nov.23 No class, Thanksgiving vacation27 Nov.28Power cycles, Review I(Beginning of dead week)28 Nov.30 Review II (potentially no class)Dec.14 Final Exam, 1-4 PM7.10-7.128.1-8.810.2, 9.5AS: HW9DUE: HW9AS: HW10DUE: HW10MAE 301 5