MAE 110A: THERMODYNAMICS

Instructor: Prof. Jan Kleissl, jkleissl at ucsd Teaching Assistant: Seungbum Jo, sejo at ucsd; Billy Hayes, whayes at ucsd Lectures: Mon, Wed, Fri 1100-1150 in CENTR119, Wed 12-1250 in CENTR119 Office Hours: JK: Tue 2-3pm, Wed 4-450pm, EBU-2 580, TA: Thu 11-12 EBU2 305, 3-4pm EBU2 305 TA discussion sessions: Thu 10-11 EBU2 105 Homework: weekly, 15% of total grade, lowest dropped Thermal design project: 10% due Dec 4. Exams: two midterms on Nov 6 and Nov 25 (35%) and final on Dec 8 (40%). All exams are open book, but no notes / homeworks etc allowed. Text: Moran and Shapiro: Fundamentals of Engineering Thermodynamics, 6th edition Class schedule changes: Sep 28: guest speaker Hal Slater on solar water heating and geothermal heat pumps Oct 12, 14 see below Finals week: Office Hours Dec 8 10-11

Midterm exam Nov 25, covers chapters 5, 6, 8; extra office hour: Mon 11/23 EBU2-305 430-6pm


Course Content:


Week of	Topic	Reading
9/28	Course information, introduction. Energy, work, heat.	Ch. 1,2
10/5	First law (closed system). Properties of pure substances.	Ch. 2,3
10/12	Properties continued. Ideal gas, incompressible substance. First law (control volume).	Ch. 3,4
10/19	First law: applications. Intro to second law.	Ch. 4,5
10/26	Carnot cycle, temperature scale. Entropy.	Ch. 5,6
11/2	Second law (closed system).	Ch. 6
11/9	Second law (control volume). Cycle analysis - Rankine cycle.	Ch. 6,8
11/16	Cycle analysis - refrigeration cycles. Gas power cycles.	Ch. 9,10
11/23	Ideal gas mixtures.	Ch. 12
11/30	Chemical reactions. Combustion.	Ch. 13
12/8	Final Exam.

Policy of Academic Honesty

Midterm

• Midterm 1 solutions

Homeworks
Homework will be assigned each week and collected on specified due date. Late homework will not be accepted under any circumstances. Homework must follow specific requirements. Solutions will be available on class website.
Homework re-grade requests must be submitted in written form (submit to Prof) detailing the justification for the re-grade. Re-grades will not be accepted beyond 1 week after return of homework.

• Homework 1; Solution
• Homework 2 (due Fri 10/9 1100am): Solution
  Textbook problems 2.54, 2.61, 2.68, 3.43 a), b)
  Handout Problem: How much energy reaches the Earth from the Sun? Discuss briefly the energy balance of the Earth, including atmosphere and oceans. Write a short paragraph, making sure to cite any references you use.
• Homework 3; Solution
• Homework 4 (due Fri 10/23 1100am): 3.50, 3.59, 3.102, 3.119, 3.130; Solution
• Homework 5 (due Fri 10/30 1100am): 4.34, 4.46, 4.58. Solution
  1. Air leaks in through a hole in an evacuated tank until the pressure inside and outside the tank equilibrate. The process happens at constant temperature. Find the heat transfer into the tank. The volume of the tank is 0.5 m3 and the outside pressure is 1 bar. Assume the air behaves as an ideal gas.
  2. Estimate the power output of the Hoover Dam, or another dam of your choice, using a control-volume analysis and relevant values for the dam. State your sources and approximations.
• Homework 6 (due Mon 11/9 1100am): 5.34, 5.59, 5.66 Solution
• Homework 7 (due Fri 11/13 1100am): 6.98, 6.123, 6.132 Solution
• Homework 8 (due Fri 11/20 1100am): 6.21, 6.152, 6.138, 8.2 Solution

Design Project: Moran and Shapiro, Problem 8.10D on page 443

• due Dec. 4, 1100am, Info on solar pond
• Grading Rubric
• Template