ID: 1544
Course type: scientific and vocational
Course coordinator: Otović M. Milena
Lecturers: Milovančević M. Uroš, Otović M. Milena
Contact: Otović M. Milena
Level of studies: M.Sc. (graduate) Academic Studies – Mechanical Engineering
ECTS: 6
Final exam type: written
Department: Department of Thermal Science Engineering
Achieving of competence and academic skills as well as methods for their acquisition. The development of creative abilities and practical skills which are essential to the profession. Objectives are concrete and achievable and in full accordance with the defined basic tasks and objectives of the study program.
Student acquires subject-specific abilities that are essential for the quality of professional activities: analysis, synthesis and prediction of solutions and consequences; application of knowledge in practice; linking the basic knowledge in various fields with their application to solve specific problems.
Natural and artificial refrigeration, Application of refrigeration, Vapour compression refrigeration systems, The Carnot vapour compression refrigeration cycle, Improvement of vapour compression cycle, (subcooling, multistage throttling, multistage compression with intercooling), Standard vapour compression refrigeration plants, Refrigerants, refrigerant selection criteria; Designation of refrigerants; Reciprocating refrigeration compressors: Бasic elements, basic parameters of operation, operating characteristics (performance) of reciprocating refrigeration compressors; Condensers: classification of condensers; Evaporators: classification, evaporator defrosting; Cooling and quick freezing of food products.
Auditory training: Moist air, thermodynamic properties of moist air, Mollier's "h-x" diagram, Important psychrometric processes, thermal insulation, selection of insulation materials, the diffusion of water vapor through thermal insulation layer, vapour barrier, calculation of refrigeration load, thermodynamic analyses of refrigeration cycle, Basic calculation for sizing of compressors, condensers and evaporators, process systems for quick freezing and storage of food products; Laboratory Exercise: Demonstration of refrigeration devices in industrial plants; Design project of refrigeration system: work in groups of 5 students (for a particular object and refrigerant), calculation of a refrigeration plant.
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Handouts which are available in advance for each week of classes
Total assigned hours: 75
New material: 20
Elaboration and examples (recapitulation): 10
Auditory exercises: 15
Laboratory exercises: 3
Calculation tasks: 0
Seminar paper: 0
Project: 10
Consultations: 0
Discussion/workshop: 2
Research study work: 0
Review and grading of calculation tasks: 0
Review and grading of lab reports: 0
Review and grading of seminar papers: 0
Review and grading of the project: 5
Test: 5
Test: 0
Final exam: 5
Activity during lectures: 0
Test/test: 24
Laboratory practice: 0
Calculation tasks: 0
Seminar paper: 0
Project: 26
Final exam: 50
Requirement for taking the exam (required number of points): 21
M. Markoski: Refrigeration, Mechanical Engineering, 2006; Handouts, 2024