ME 351: ENGINEERING THERMODYNAMICS SPRING 2020 SCHEDULE NUMBER 22182 COURSE INFORMATION Instructor: Joaquin Camacho Class Days: MW Class Times: 3:30 – 4:45 PM Class Location: WC - 201 Office Hours Times: Mon & Wed 2:00 – 3pm or by appointment Office Hours Location: E-323H ***SCHEDULE NOTE (GM ON SCHEDULE OF CLASSES WEBSITE)*** EXAM 1 FEB 22 10:00 AM – 11:15 AM AT HT-140 EXAM 1 APR 11 10:00 AM – 11:15 AM AT HT-140 ALL ME351 SECTIONS WILL HAVE EXAMS TOGETHER ON SATURDAY COURSE OVERVIEW Catalog entry: Analysis and design of gas and vapor power cycles, and refrigeration systems. Generalized property relations for gases and gas-vapor. Air-conditioning. Combustion and chemical equilibrium. Design of engineering systems and processes. Course objectives: 1. To provide a thorough understanding of the application of classical thermodynamics to practical problems. Applications include gas turbine engines (power generation and aircraft), vapor power and refrigeration/heat pump systems, and air conditioning systems. 2. To provide an introductory treatment of thermodynamics for an expanded range of materials including ideal gas mixtures, real fluids, and reacting systems. 3. To provide limited design experience for systems requiring significant consideration of thermodynamics. COURSE PREREQUISITES Mechanical Engineering 350 1 STUDENT LEARNING OUTCOMES At the end of the course, students will be able to: 1. Represent the power generation process in common mobile and stationary power plants, and refrigeration systems and heat pumps, as a thermodynamic cycle. 2. Conduct first and second law analysis of the thermodynamic cycles to determine system performance and suggest improvements. 3. Apply thermodynamic relations and physical property relations, tables and charts for the analysis of gas and vapor mixtures, phase transformations, and chemically reacting systems. 4. Conduct first law analysis of chemically reacting systems to determine product temperature and composition. 5. Determine the thermodynamic state of a reacting mixture in chemical equilibrium. 6. Apply first and second law principles to design basic energy conversion systems, select working fluids, and estimate the effects of pressure, temperature, and flow rate on the system performance. 7. Communicate effectively the knowledge of thermodynamic principles, energy balance equations, and the use of physical property relations, tables, and charts for the analysis of energy conversion and air-conditioning systems. ABET STUDENT OUTCOMES 1. An ability to identify, formulate, and solve complex engineering problems by applying principles of engineering, science, and mathematics 2. An ability to apply engineering design to produce solutions that meet specified needs with consideration of public health, safety, and welfare, as well as global, cultural, social, environmental, and economic factors 3. An ability to communicate effectively with a range of audiences 4. An ability to recognize ethical and professional responsibilities in engineering situations and make informed judgments, which must consider the impact of engineering solutions in global, economic, environmental, and societal contexts 5. An ability to function effectively on a team whose members together provide leadership, create a collaborative and inclusive environment, establish goals, plan tasks, and meet objectives 6. An ability to develop and conduct appropriate experimentation, analyze and interpret data, and use engineering judgment to draw conclusions 7. An ability to acquire and apply new knowledge as needed, using appropriate learning strategies. 2 8. An ability to apply principles of engineering, basic science, and mathematics (including multivariate calculus and differential equations); to model, analyze, design, and realize physical systems, components or processes. 9. An ability to work professionally in either thermal or mechanical systems areas. MAPPING OF STUDENT LEARNING OUTCOMES (SLO) TO ABET STUDENT OUTCOMES ME 351 SLO ABET Student Outcome Represent the power generation process in common mobile and 1, 8, 9 stationary power plants, and refrigeration systems and heat pumps, as a thermodynamic cycle. Conduct first and second law analysis of the thermodynamic cycles to 1, 8, 9 determine system performance and suggest improvements. Apply thermodynamic relations and physical property relations, tables 1, 8, 9 and charts for the analysis of gas and vapor mixtures, phase transformations, and chemically reacting systems. Conduct first law analysis of chemically reacting systems to determine 1, 8 product temperature and composition. *Determine the thermodynamic state of a reacting mixture in chemical 1, 8 equilibrium. Apply first and second law principles to design basic energy conversion 1, 8, 9 systems, select working fluids, and estimate the effects of pressure, temperature, and flow rate on the system performance. Communicate effectively the knowledge of thermodynamic principles, 1, 8, 9 energy balance equations, and the use of physical property relations, tables, and charts for the analysis of energy conversion and airconditioning systems. COURSE MATERIALS The following materials are required. Textbook: Fundamentals of Engineering Thermodynamics, 9th edition, M.J. Moran, H.N. Shapiro, D.B. Boettner, M.B. Bailey, John Wiley & Sons, 2018. COURSE STRUCTURE AND CONDUCT There will be two lectures per week, two mid-terms, and a comprehensive final exam. The lecture schedule for Fall 2019 is shown below: 3 Week 1 2 3 4 Date 1/22 Topic Review – Work, Heat Transfer, Properties Samples Reading 2.17, 2.24, 2.33, Chapters 2, 2.36, 2.43, 3.25, 3 1/27 Review – First Law Chapter 4 1/29 Review – Second Law, Entropy Balance, Exergy Chapters 5, 6, 7 2/3 2/5 2/10 Ideal Gas Mixtures and processes Psychrometry Psychrometry 12.1 – 12.3 12.4 12.5-12.9 2/12 2/17 2/19 2/24 2/26 10.1 – 10.3 10.1 – 10.3 10.6 8.1, 8.2 10.29, 10.32 8.4, 8.9, 8.14 8.3, 8.4 8.18, 8.19, 8.27 13.1, 13.2 13.2, 13.9, 13.20, 13.26 13.2, 13.3 13.31, 13.34, 13.42, 13.49 3/11 3/16 3/18 Vapor Compression Cycles Vapor Compression Cycles EXAM 1 on Saturday Heat Pumps Vapor Power Systems, Ideal Rankine Cycle Rankine Cycles with Superheat, Reheat, and Regeneration Stoichiometry of Reactions, Energy Analysis Energy Analysis of Reactions, Flame Temperature Entropy Analysis of Reactions Chemical Equilibrium Criteria Equilibrium Composition 3.41, 3.79 4.14, 4.20, 4.34, 4.47, 4.78 5.40, 5.44, 5.54, 6.14, 6.58, 6.68, 6.107 12.7, 12.15, 12.17 12.19, 12.24 12.30, 12.33, 12.36, 12.37, 12.54, 12.60, 12.62 10.6, 10.14, 10.20 10.6, 10.14, 10.20 13.53, 13.56 14.2, 14.7 14.18, 14.22 3/23 3/25 Equilibrium Flame Temperature van’t Hoff Equation, Ionization 3/30 4/1 4/6 4/8 4/13 4/15 4/20 SPRING BREAK SPRING BREAK Simultaneous Reactions EXAM 2: Saturday, April 11 Generalized Equations of State Property Relationships for Real Fluids Reciprocating Cycles, Air Standard Assumptions Air Standard Otto Diesel Cycle Air Standard Otto Diesel Cycle Air Standard Brayton Cycle Air Standard Brayton Cycle Other Cycles FINAL EXAM 3:30 – 5:30 PM 13.5 14.1 14.2 14.3.2 14.4.1 14.4.2, 14.4.3 3/2 3/4 3/9 EXAM 4/22 4/27 4/29 5/4 5/6 5/13 4 – 14.28, 14.33 14.35, 14.37, 14.40 14.4.4 14.41, 14.42 11.1 11.2, 11.3 9.1 – 9.3 11.4, 11.8 11.20, 11.22 9.9, 9.14, 9.18 9.6 9.6 9.7, 9.8 9.7, 9.8 9.30, 9.40 9.30, 9.40 9.42, 9.57 9.42, 9.57 IN CLASS Homework Problem Sets: Problem sets will be assigned every 2-3 weeks. Two types of homework assignments will be assigned at the same time: (1) shorter problems taken from the textbook and completed online using Blackboard (2) longer problems requiring written responses with partial credit given along the way. The homework assignments will include detailed instructions that need to be followed to receive full credit. 1. Late homework will not be accepted. Exceptions will only be made following the Medical Excuse Policy stated in the SDSU General Catalog. 2. The following rules will determine the homework problem set grade: a. The instructions and requested steps must be followed. For example, assumptions, equations, sketches, control volumes, diagrams, etc. will often be requested. b. The intermediate steps must be written down so that the grader can follow the logic of the problem solver. c. For the written problem sets, a correct solution is required for full credit but accuracy will be weighted less than rules 2a. and 2b. Please use the following format in solving problems: Given: State in your own words what is given in the problem statement. Example “Initial temperature T1 = 30°C.” Given information serves two purposes. First, it helps you determine which terms in your basic equations you can calculate directly. Second, it helps you determine how many equations you need - the number of equations must equal the number of unknowns. Find: List what the problem wants you to find. Example “Pressure P2 = ?” You use this information to guide you in your choice of basic equation(s); obviously, the basic equation(s) you choose should include the quantity (quantities) of interest. A sketch of system and selected control volume. Your sketch/control volume will help you identify where energy and mass flow into/out of your system or control volume. Assumptions: Examples: “Steady state” “Uniform flow” “Ideal gas” etc. Assumptions are listed to help you eliminate terms in your basic equations. Basic Equations: Your basic equation(s) must be one (those) listed on the attached ME 350 basic equation sheet. Solution: This includes correct units. 5 EXAMINATIONS: There are two one-hour examinations and one two-hour comprehensive final examination. Make-up hourly examinations are not given. If you are ill (with acceptable medical proof from a physician), have an emergency (with proof), or have prior approval of your instructor to miss an examination on account of some university business, your grade for the missed examination is the weighted average of the remaining one-hour examination and final examination. In all other cases you receive a grade of zero for that examination. All examinations, including the final, are closed book and closed notes. A list of basic equations will be distributed. You should bring to each examination a calculator that works and one in which the batteries will not go dead during the examination (the instructors do not bring extra calculators to the examinations), pencil(s), eraser, and a straight edge for help when drawing control volumes or diagrams. Exam Calculator Policy A basic scientific calculator like the TI-30XIIs should be used during the examinations. Your calculator should have only basic functionality (no added bells or whistles). Students retain the freedom to use their calculator of choice on homework, labs, and projects; however, students are encouraged to practice using their exam calculator to make sure they fully understand its functionality. The reason for this policy is to address growing inequity and academic dishonesty issues due to different calculators used by students during exams. The use of PDAs, smartphones/iPhones, Blackberry-type devices, cell phones, tablet/laptop computers, or any other sources of communication (wireless or otherwise) are strictly prohibited during examinations. Doing so is cheating. If you bring a cell phone or other communication device to the examination, it must be turned off prior to the start of the exam, stored below your seat, and only picked up as you leave the examination room for the final time. It cannot to be turned on again until after you have exited the examination room, otherwise it will be considered a form of cheating and treated as such. EXAMINATION GRADING: On the examinations, points are deducted if you do not follow the problem solution format as outlined earlier. The problems will be usually set up so that the Given and Find are provided. Points are deducted if you do not list your assumptions, indicate what the system looks like, and what basic equations you have used. In addition, you will lose points if you do not provide sufficient detail during your analysis so that the instructor can 6 understand what you have done and why you have done it (i.e., which terms have been dropped from any and all basic equations, as well as your justification for dropping those terms). Finally, you must carry units through during your analysis, and must avoid sign errors in all energy quantities, plus correctly identify the direction of work and heat transfer terms. Problem solutions that cannot be followed because of illegibility will also lose points. Any form of dishonesty (including cheating) on an examination, as defined by results in at least a grade of zero for that examination and you will be reported to the University. After more than one instance of dishonesty of any kind within ME 351, you will receive a failing grade for ME 351. Any dishonesty on the final examination will result in a zero on the final examination. SEE THE ACADEMIC HONESTY POLICY BELOW FOR MORE DETAILS COURSE ASSESSMENT AND GRADING Final score out of 100 points calculated and a letter grade will be assigned as follows: Mid-Term Exam 1 Mid-Term Exam 2 Final Exam Homework 20% 20% 40% 20% The grades will be allocated in the class according to the following ranges. The Instructor reserves the right to change the range, but it will not be stricter than indicated below. A AB+ B BC+ C CD+ 93+ 90 to 9388+ to 9082 to 8880 to 8278 to 8072 to 7870 to 7268 to 707 D DF 62 to 6860 to 6260- ACADEMIC HONESTY 1. Homework Cheating and Plagiarism Policy: Collaboration with classmates is encouraged but each student must submit individual homework problem sets with original work. The Disciplinary Action section of the Cheating and Plagiarism Policy listed in the SDSU General Catalog will be referred to when cheating is suspected. 2. Midterm Examination Cheating Policy: Collaboration and Copying from classmates is NOT ALLOWED during the midterms exams and this will be considered to be cheating. The Disciplinary Action section of the Cheating and Plagiarism Policy listed in the SDSU General Catalog will be referred to when cheating is suspected. 3. Final Examination Cheating Policy: Collaboration and/or Copying from classmates is NOT ALLOWED during the final exam and this will be considered to be cheating. The Disciplinary Action section of the Cheating and Plagiarism Policy listed in the SDSU General Catalog will be referred to when cheating is suspected. The University adheres to a strict policy regarding cheating and plagiarism. These activities will not be tolerated in this class. Become familiar with the policy and what constitutes plagiarism (http://studentaffairs.sdsu.edu/srr/cheating-plagiarism.html). Any cheating or plagiarism will result in failing this class and a disciplinary review by the University. These actions may lead to probation, suspension, or expulsion. Examples of plagiarism include but are not limited to: 8 • • • • • Using sources verbatim or paraphrasing without giving proper attribution (this can include phrases, sentences, paragraphs and/or pages of work) Copying and pasting work from an online or offline source directly and calling it your own Using information you find from an online or offline source without giving the author credit Replacing words or phrases from another source and inserting your own words or phrases Submitting a piece of work you did for one class to another class TURNITIN Students agree that by taking this course all required papers may be subject to submission for textual similarity review to Turnitin.com for the detection of plagiarism. All submitted papers will be included as source documents in the Turnitin.com reference database solely for the purpose of detecting plagiarism of such papers. You may submit your papers in such a way that no identifying information about you is included. Another option is that you may request, in writing, that your papers not be submitted to www.turnitin.com. However, if you choose this option you will be required to provide documentation to substantiate that the papers are your original work and do not include any plagiarized material. TECHNICAL SUPPORT FOR BLACKBOARD Student support for Blackboard is provided by the Library Computing Hub, located on the 2nd floor of Love Library. They can be reached at 619-594-3189 or hub@mail.sdsu.edu INTERACTING WITH INSTRUCTOR The Instructor will assign two full hours of office hours per week. Please use this time to talk with your instructor in person regarding any questions, concerns and suggestions you might have. If you really need to talk, but cannot make it to office hours, please email your instructor to schedule a meeting time. Queries submitted via email may or may not receive a timely response based on the severity of the issue, the brevity of the response required and the ease of finding the answer elsewhere (such as by consulting the course syllabus). Please make sure your emails to the instructor follow the proper protocol of formal communication to elicit a response. The instructor will go over this protocol (format) in class on the first day. 9 STUDENT ABILITY SUCCESS CENTER If you are a student with a disability and believe you will need accommodations for this class, it is your responsibility to contact Student Disability Services at (619) 594-6473. You can also learn more about the services provided by visiting the Student Ability Success Center website. To avoid any delay in the receipt of your accommodations, you should contact Student Disability Services as soon as possible. Please note that accommodations are not retroactive, and that accommodations based upon disability cannot be provided until you have presented your instructor with an accommodation letter from Student Disability Services. Your cooperation is appreciated. STUDENT SERVICES: A complete list of all academic support services is available on the Academic Success section of the SDSU Student Affairs website. For help with improving your writing ability, the staff at the SDSU Writing Center is available in person and online. Counseling and Psychological Services offers confidential counseling services by licensed psychologists, counselors, and social workers. More info can be found at their website or by contacting (619) 594-5220. You can also Live Chat with a counselor http://go.sdsu.edu/student_affairs/cps/therapist-consultation.aspx between 4:00pm and 10:00pm, or call San Diego Access and Crisis 24-hour Hotline at (888) 724-7240. 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