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| MAK7401 | Cycle Analysis of Gasoline Engines | 3+0+0 | ECTS:7.5 | | Year / Semester | Spring Semester | | Level of Course | Third Cycle | | Status | Elective | | Department | DEPARTMENT of MECHANICAL ENGINEERING | | Prerequisites and co-requisites | None | | Mode of Delivery | Face to face | | Contact Hours | 14 weeks - 3 hours of lectures per week | | Lecturer | Prof. Dr. Olkan ÇUVALCI | | Co-Lecturer | None. | | Language of instruction | Turkish | | Professional practise ( internship ) | None | | | | The aim of the course: | | Providing the students with a general knowledge about the entire cycle and combustion process of spark-ignition (or gasoline) engines and mathematical models of cycle and processes occurring within engine cylinder such as intake, compression, combustion and exhaust during the engine cycle. |
| Programme Outcomes | CTPO | TOA | | Upon successful completion of the course, the students will be able to : | | | | PO - 1 : | learn knowledge about basic processes taking place in engine cylinder during engine cycle. | 3,5 | 1 | | PO - 2 : | learn major modeling methods of gasoline engine cycle and differences between them. | 3,5 | 1,3 | | PO - 3 : | simulate mathematically engine cycle and several engine processes, using a method given in literature. | 1,3,5 | 3 | | PO - 4 : | develop a computer code for a proposed cycle model. | 5,11 | 3 | | PO - 5 : | perform numerical applications using developed computer code. | 5,11 | 3 | | CTPO : Contribution to programme outcomes, TOA :Type of assessment (1: written exam, 2: Oral exam, 3: Homework assignment, 4: Laboratory exercise/exam, 5: Seminar / presentation, 6: Term paper), PO : Learning Outcome | | |
| Theoretical and actual cycles of gasoline engines. Modeling of intake and compression processes in gasoline engines. Combustion process in gasoline engines and various combustion models. Modelling the expansion and exhaust processes in gasoline engines. Computer modeling of gasoline engine cycles. Numerical applications, parametric studies and comparisons with other theoretical and experimental results. |
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| Course Syllabus | | Week | Subject | Related Notes / Files | | Week 1 | General knowledge about actual and theoretical cycles of gasoline engines | | | Week 2 | Cyles of Otto, Diesel and Seiliger and basic approximations used in these cycles | | | Week 3 | Investigation of actual cycle processes of gasoline engines: intake and compression processes | | | Week 4 | Investigation of actual cycle processes of gasoline engines: combustion process | | | Week 5 | Investigation of actual cycle processes of gasoline engines:expansion and exhaust processes | | | Week 6 | Knowledge about fundamental methods for theoretical calculation of gasoline engine cycles | | | Week 7 | Dimensional and thermodynamic cycle models | | | Week 8 | Quasi-dimensional cycle models: derivation of governing differential equations for cylinder pressure and temperature applying the First Law of Thermodynamics | | | Week 9 | Mid-Term Exam | | | Week 10 | Calculation of cycle by means of quasi-dimensional model: solution of governing equations for intake and compression | | | Week 11 | Calculation of cycle by means of quasi-dimensional model: calculation of combustion process using turbulent flame propagation approximation | | | Week 12 | Calculation of cycle by means of quasi-dimensional model: calculation of combustion process using turbulent flame propagation approximation | | | Week 13 | Calculation of cycle by means of quasi-dimensional model: calculation of intake and exhaust processes | | | Week 14 | Writing a computer code for mathematical cycle model and numerical applications | | | Week 15 | Writing a computer code for mathematical cycle model and numerical applications | | | Week 16 | End-of-term exam | | | |
| 1 | Bayraktar, H. Benzin-Etanol Karışımlarının Benzin Motorlarında Yanma ve Motor Çevrimi Üzerindeki Etkilerinin Teorik Olarak İncelenmesi, Doktora Tezi, Karadeniz Teknik Üniversitesi, Fen Bilimleri Enst., 1997. | | | 2 | Heywood, JB. Internal Combustion Engine Fundamentals. McGraw-Hill Book Co., Singapore, 1989. | | | 3 | Ramos, JI. Internal Combustion Engine Modeling, Hemisphere Publishing Co., Newyork, 1989. | | | |
| 1 | Fenton, J., Gasoline Engine Analysis, Mechanical Engineering Publications LTD, London, 1986. | | | |
| Method of Assessment | | Type of assessment | Week No | Date | Duration (hours) | Weight (%) | | Mid-term exam | 9 | 10/04/2018 | 2 | 50 | | End-of-term exam | 16 | 05/06/2018 | 2 | 50 | | |
| Student Work Load and its Distribution | | Type of work | Duration (hours pw) | No of weeks / Number of activity | Hours in total per term | | Yüz yüze eğitim | 3 | 14 | 42 | | Sınıf dışı çalışma | 5 | 14 | 70 | | Arasınav için hazırlık | 20 | 1 | 20 | | Arasınav | 2 | 1 | 2 | | Ödev | 8 | 4 | 32 | | Dönem sonu sınavı için hazırlık | 20 | 1 | 20 | | Dönem sonu sınavı | 2 | 1 | 2 | | Diğer 1 | 6 | 1 | 6 | | Diğer 2 | 6 | 1 | 6 | | Total work load | | | 200 |
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