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ME 476: 2 nd Law Analysis of Engineering Systems Spring 2008 Derek Baker.

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Presentation on theme: "ME 476: 2 nd Law Analysis of Engineering Systems Spring 2008 Derek Baker."— Presentation transcript:

1 ME 476: 2 nd Law Analysis of Engineering Systems Spring 2008 Derek Baker

2 Orta Doğu Teknik ÜniversitesiME nd Law Analysis This Week’s Schedule  Today: Overview of Class oGrading oAssignments oStructure  Thursday: oClass Policies oBegin Review of Non-Reacting Energy Processes (Thermo I)  25 Şubat (Monday), 17.00: Ethics HW 1 Due  3 Şubat (Monday), 17.00: Ethics HW 2 Due

3 Orta Doğu Teknik ÜniversitesiME nd Law Analysis 2 nd Law Analysis  Advanced Thermodynamic Analysis  Also Called oAvailability Analysis oExergy Analysis  Active area of thermodynamics  Exergy quantifies part of energy available to do useful work (i.e., quality of energy)

4 Orta Doğu Teknik ÜniversitesiME nd Law Analysis Exergy: Pollution, Climate Change, Resources

5 Orta Doğu Teknik ÜniversitesiME nd Law Analysis 2 nd Law Analysis  Exergy not conserved.  A thermodynamically perfect process oIs completely reversible Generates no entropy Destroys/loses no exergy oGenerates no pollution/global warming gases  All real processes destroy exergy, which results in oConsumption of non-renewable resources oPollution oGlobal warming  Goals: oQuantify exergy destroyed/lost by real processes oIdentify processes that destroy/lose the most exergy oMinimize exergy destruction through improved engineering  Thermal design and optimization

6 Orta Doğu Teknik ÜniversitesiME nd Law Analysis Topics: 1.Non-Reacting Energy and Exergy Processes a)Energy: Review Thermo I b)Exergy: Review Thermo II c)Non-Reacting Mixtures: Review Thermo II and extend to Exergy 2.Reacting Mixtures: a)Review Thermo II b)Extend to Exergy 3.Exergy, Heat Transfer and Fluid Flow (Thermal Systems) 4.Economics 5.Thermoeconomics 6.Optimization

7 Orta Doğu Teknik ÜniversitesiME nd Law Analysis Grading  20% Homework o½ directly related to project o½ covers other topics  25% MT1  25% MT2  30% Final

8 Orta Doğu Teknik ÜniversitesiME nd Law Analysis Grading  20% Homework o½ directly related to project o½ covers other topics  25% MT1  25% MT2  30% Final  For MTs and Final o½ Take-home related to project o½ In-class  ~ 50+% of grade is based on project!

9 Orta Doğu Teknik ÜniversitesiME nd Law Analysis Quizzes and Attendance  No Quizzes  Attendance taken but not used to calculate final grade  Grading Curve: oDefined by students with good attendance oNot effected by students with poor attendance  Students with good attendance given benefit of doubt  You are responsible for all material I cover in class.  If you miss class without an excuse, do not create extra work for me by asking me what you missed

10 Orta Doğu Teknik ÜniversitesiME nd Law Analysis Project  Develop model of simple gas turbine engine with heat recovery steam generator  Modeling: MathCad oNot Excel or MatLab oWill teach MathCad in Class  Reports: o~ 7 total (4 HW, 2 for MT’s and 1 for Final)  1 every 2 weeks o~ 2 pages each + methodology oTable summarizing results oGraph of results o~ 1 page of interpretation oMethodology

11 Orta Doğu Teknik ÜniversitesiME nd Law Analysis Parts to Project 1.Non-reacting Energy Model 2.Non-reacting exergy model 3.Add water injection before combustion (psychrometrics): Energy and Exergy 4.Combustion + Global Warming 5.Pollution: NO x generation 6.Heat recovery steam generator 7.Economics

12 Orta Doğu Teknik ÜniversitesiME nd Law Analysis Parts to Project 1.Non-reacting Energy Model 2.Non-reacting exergy model 3.Add water injection before combustion (psychrometrics): Energy and Exergy 4.Combustion + Global Warming 5.Pollution: NO x generation 6.Heat recovery steam generator 7.Economics ** To do well in this course you must work on project over whole semester!**

13 Orta Doğu Teknik ÜniversitesiME nd Law Analysis Prior Knowledge  Assume you know oWord, Excel (for graphing and tables) oCan answer individual questions  Assume you know but will review main ideas in class oME 203, Thermo oME 204, Thermo II oThese classes are Prereqs!  Assume you do not know and will cover in class: oMathCad oEconomics oHeat Transfer oFluid Mechanics

14 Orta Doğu Teknik ÜniversitesiME nd Law Analysis Selection Criteria  If class fills-up….  Attendance on Thursday  Cumulative GPA  Complete Ethics HW1 by Monday

15 Orta Doğu Teknik ÜniversitesiME nd Law Analysis 2 nd Law Analysis of Engineering Systems Questions?????


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