Chapter1_Notes

Chapter1_Notes - MAE 4243 Aerospace Propulsion & Power...

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MAE 4243 Introduction Chapter 1
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Outline Syllabus Textbook Grades Course Topics Gas Turbine Engines & Other Gas Power Systems Classification Engine Requirements & Design as a Part of Aerospace Systems Design
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Syllabus Instructor Rick Gaeta, 208 EN, rgaeta@okstate-uml.org OH: open door policy or by appt. Background TAs (see syllabus for contact info) Cody Pinkerman Ben Bettenger Mike Novick (Tulsa) Lecture notes will be posted online (OC/D2L) and are intended both to emphasize topics and supplement the text; thus, there will not always be overlap (yes, you have to read the book!) - posting will usually be on the weekend prior to that week ` s lectures Best way to contact me
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Syllabus Text Elements of Propulsion, Gas Turbines & Rockets by Jack D. Mattingly, AIAA, 2006 Available on Knovel server (www.knovel.com) Course topics (see syllabus) Grades HW 3-4 Design l Projects z as part of HW grade (extended HW problems) 2 Exams 1 Final exam Final grades will be based on a curve with B-C line being the nominal average This class is hard; after all, it is rocket science!
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Units Unfortunately, the US aircraft engine industry is as entrenched as the US aircraft industry and English/Imperial units are the norm (this is changing rapidly though as companies form global alliances) While we will commonly use SI units, we will often use English units to make sure we know what we ` re doing The text also uses SI and English alternating in HW & you should be comfortable converting between systems Common conversions Note that when using lbm instead of slug , you have to use the gravitational conversion, g c =32.174, included in eq ` ns in the text 1 lbf = 4.448 N 1 kg = 2.2 lbm = .0685 slugs 1 Btu = 778 lbf-ft = 1055 J 1 atm = 14.7 psi = 1.01•10 5 kPa 1 hp = 550 ft-lbf/s = 745.7 W = 2545 Btu/hr
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6 A Note About Tests and HW q It is a well accepted fact that 86.3% of all problems dealing with research and engineering are the result of improper unit conversion .Check units first! q We are not going to convert to the SI system in this country in the foreseeable future .Deal with it. q When you obtain a result on a test or HW, always ask yourself "Does this make sense?" No partial credit will be given if a patently ridiculous answer is given with no acknowledgement of it's absurdness. q The clearer and neater your answers are, the more likely I am to give you partial credit.
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7 Form or Function? The Engineer as Artist
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8 GE 90 Fan Laws of Thermodynamics in the NY Metropolitan Museum of Art Engineering & The Arts
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Rapid Progress ~ 1240 lb f ~ 128,000 lb f ~ 60 years of Engineering l The invention was nothing. The achievement was making the thing
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Chapter1_Notes - MAE 4243 Aerospace Propulsion & Power...

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