• Thermal Power Engineering, Semester 3, position 2

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.

Characteristics of heat pumps: Systematization of thermal systems performing refrigeration cycles, The criteria for evaluation of thermodynamic quality of refrigeration cycles, Heat sources for heat pumps, (atmospheric air, surface water, groundwater and soil, geothermal energy, heat accumulators, solar plate collectors), Thermodynamic improvement of refrigeration cycles; Sorption refrigeration systems; Properties of refrigerant-absorbent mixtures: Basic steady-flow processes with binary mixtures; Basic vapour absorption refrigeration system, (VARS), Steady-flow analysis of the VARS, Maximum COP of ideal absorption refrigeration system, Comparison between compression and absorption refrigeration systems.

Auditory training: systematization of thermal systems performing refrigeration cycles, predicting of heat pumps performaнces, mass and heat balance of drying processing, determination of characteristics of the heat pump elements, (compressor, condenser,evaporator), binary mixtures, the basic operations with binary mixtures, thermodynamic calculation of single effect VARS Laboratory exercise: demonstration of heat pumps for air conditioning system of a hotel building; Design project of heat pump system: work in groups of 5 students (for a particular object and refrigerant), calculation and selection of elements of heat pump, Analysis of complete vapour compression heat pump plant.

Necessary passed the test: Refrigeration Equipment, Refrigeration Systems

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: 10
Laboratory exercises: 5
Calculation tasks: 0
Seminar paper: 0
Project: 15
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: 0
Review and grading of the project: 5
Test: 5
Test: 0
Final exam: 5

Activity during lectures: 0
Test/test: 30
Laboratory practice: 0
Calculation tasks: 0
Seminar paper: 0
Project: 20
Final exam: 50
Requirement for taking the exam (required number of points): 26

M. Markoski: Refrigeration, Mechanical Engineering, 2006; Handouts, 2023