Turbomachinery, graduate class, T. Korakianitis

Date	Time	Topics
May 25	12-4	Review of thermodynamics and fluid dynamics
May 27	4-8	HW1 due. Turbomachinery applications
Jun 03	4-8	HW2 due. Chapter 2: Turbomachine efficiency definitions
Jun 10	4-8	HW3 due. Chapter 3: Gas turbine power cycles
Jun 17	4-8	Quiz 1 (on HW1, HW2) Chapter 4: Diffusion and diffusers
Jun 24	4-8	HW4 due. Chapter 5: Energy transfer and velocity diagrams
Jul 01	4-8	Quiz 2 (on HW3, HW4) Chapter 6: Three-dimensional design
Jul 08	4-8	Laboratory exercise HW5 due. Chapter 7: Axial-turbine design
Jul 15	4-8	Lab report, term paper, design project due Chapter 8: Axial-compressor design
Jul 22	4-8	Quiz 3 (on HW1 through to HW5) HW6 due. Chapter 9: Radial turbomachines, hydraulic turbomachines

HW1: From the textbook, 1.2, 1.3, 1.5, 2.1, 2.3, 2.4 (they are small quantitative problems). Since the book is not yet in the bookstore, here is the text of the problems.

1.2 Gas turbine engines have not reached the power-output levels of the largest steam turbines. Why?

1.3 Estimate the design power output of the smallest gas turbine engine produced in the last decade. Why aren't smaller engines made?

1.5 Why is the maximum temperature of stem turbines so much lower than the turbine-inlet temperature of gas turbine engines?

2.1 Does the stagnation temperature of the working fluid rise or fall in passing through a gas-turbine expander? Why?

2.3 By how much, and in which direction, does the temperature of water change when it falls over a 50 m high waterfall? What is the mechanism for this change?

2.4 Sketch in your qualitative estimates of the variation of stagnation and static enthalpy and pressure through the intercooled compressor shown in fig P2.4. Some end points are shown. Four lines are required.

Grading:

6 homeworks	25
3 quizes	50
Lab report	5
Design project	10
Term paper	10
TOTAL	100

Class conduct: Those of you who attend the lectures will find yourselves at a distinct advantage in solving the homework and quiz problems. It is therefore strongly recommended that you do not miss class. Homeworks, laboratory reports, term paper projects and design projects represent individual effort. Questions about the class material and the homeworks will be handled in class, so that everyone will have the same amount of information and help. You are not allowed to solve homework problems together. Please do not work on the same table with your friends. The quizzes are open book, notes, etc (see below). Collaboration of any sort on problem sets, projects, reports and quizzes is not allowed, except we will all share all the data obtained in the laboratory.

Problem sets: Problem sets will be due at the beginning of lectures (usually on Thursdays, but not every Thursday). Solutions will be posted after the lecture outside Jolley 218. Each problem set will be graded and returned at the beginning of the next lecture. Problem sets turned in late will not be graded. Please turn in whatever you have completed by the due time. If you wish to turn in your homework early, please slide it under the teaching assistant's door in Jolley 218 or in his mailbox in Jolley 305, (not in his pentaflex and not in my mailbox). The problem sets will not be repetitive. It is important that you try to solve each problem before you study (not read) the solution. We recommend that you study each problem in depth. Come to the lectures with questions on the problem sets or the lecture material.

Quizzes: There will be three quizzes held during class times. They will last 80 minutes each. The quizzes will test your understanding of fundamentals, but they will be different from anything you have seen in the homeworks (this is a design class). You may use any book and any notes you wish during the quizzes. We recommend that in addition to the books and notes you develop a one or two page of summary notes for the quizzes.

Laboratory: We will measure the steady-state efficiency of a centrifugal compressor and turbine (they are both components of the same turbocharger). The measurements will be taken in the Internal Combustion Engines Laboratory, located in Jolley 105 (access from the east stairwell of Jolley Hall).

Term paper: TBA

Design project: This will involve the three-dimensional design of a few stages of axial compressors or turbines. You will need material from chapters 1 through to 6 in the text in order to complete this project. We will use a computer program for the computations.

Text: The design of high-efficiency turbomachinery and gas turbines. D. G. Wilson and T. Korakianitis, 2nd ed. Prentice Hall, 1998.

Other:

Five percentage points (5\%) of the final course grade will be subtracted for each day (24-hour period) that the term paper, laboratory report, or design project are late. This ensures that being just one day late will have a substantial effect on final course grades. Please hand in completed reports (later additions will not be accepted).
Graduate and undergraduate students will be graded in separate groups. If and when appropriate we may specify different problems in the homeworks and/or in the quizzes for graduate and for undergraduate students. It is expected that the graduate students will supply material of appropriate level for the course.

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