Achieving of competency in individual and team research in the field of modeling and optimization of refrigeration technologies. Development of creative skills of analysis and synthesis of complex technological and technical refrigeration systems in accordance with established basic tasks and goals of the study program.

PhD student develops specific skills to autonomously formulate a strategy for the technical-economic improvement of industrial refrigeration installations integrated into the complex process systems and solve relevant practical problems using modern methods of analysis and calculation procedures; as part of a team organizes and performs the necessary analysis and calculations and proposes appropriate measures to improve the operational performance of complex process systems.

Principles of modeling in process technologies, Basic concepts, Methods of modeling; Physical and mathematical modeling in refrigeration technique; Analysis and prediction of complete vapor compression refrigeration system performances (estimation of „working state“ of the system): throttling valve characteristics, compressor performance characteristics, condenser performance characteristics, evaporator performance characteristics, performance of condensing unit (compressor and condenser) as a function of evaporator and condensing temperatures, performance of complete system - condensing unit and evaporator (refrigeration and heat pump system); Mathematical description of the object and the process for developing the optimization model of complex systems; Techno economic criteria of complex systems optimization; The principles of techno economic analysis of process systems; Optimization methods (Lagrange Multipliers, Search Methods); Dynamic programming; Linear programming

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Needed basic knowledge in thermodynamics, heat transfer and refrigeration technique

Total assigned hours: 65

New material: 20
Elaboration and examples (recapitulation): 30

Auditory exercises: 0
Laboratory exercises: 0
Calculation tasks: 0
Seminar paper: 0
Project: 0
Consultations: 0
Discussion/workshop: 0
Research study work: 0

Review and grading of calculation tasks: 0
Review and grading of lab reports: 0
Review and grading of seminar papers: 10
Review and grading of the project: 0
Test: 0
Test: 0
Final exam: 5

Activity during lectures: 0
Test/test: 0
Laboratory practice: 0
Calculation tasks: 0
Seminar paper: 70
Project: 0
Final exam: 30
Requirement for taking the exam (required number of points): 0

Markoski M.: Refrigeration devices, Facultu of Mechanical Engineering, Belgrade, 2006; ASHRAE Handbook, 2013, Fundamentals, American Society of Heating, Refrigeration and Air-Conditioning, Engineers, inc., Tullie Circle, n,e., Atlanta, GA 30329.; ASHRAE Handbook, Refrigeration, 2010, American Society of Heating, Refrigeration and Air-Conditioning, Engineers, inc., Tullie Circle, n,e., Atlanta, GA 30329.; Stoecker W.F.: Design of Thermal systems, McGraw-Hill Book Company, 1989.