ME420 REFRIGERATION ENGINEERING

Course Code:5690420
METU Credit (Theoretical-Laboratory hours/week):3 (3.00 - 0.00)
ECTS Credit:5.0
Department:Mechanical Engineering
Language of Instruction:English
Level of Study:Undergraduate
Course Coordinator:Assoc.Prof.Dr. ÖZGÜR BAYER
Offered Semester:Fall and Spring Semesters.

Course Objectives

At the end of the course students will;

  • know how to calculate the cooling load for refrigeration purposes.
  • learn the actual vapor compression cycle modifications for specific applications.
  • know the common types of refrigerants used in refrigeration systems. 
  • know the thermal design and performance analysis of basic refrigeration system components.
  • have an idea about absorption refrigeration.
  • be informed about novel cooling techniques

Course Content

Application areas. Cooling load calculations. Vapor compression refrigeration cycle. System components: compressors, evaporators, condensers, expansion devices, piping, auxiliary and control devices. System balance. Alternative refrigeration systems such as thermoelectric, air cycle, steam jet and absorption refrigeration.


Course Learning Outcomes

By the end of the course students will;

  • be able to perform transient cooling load analysis and to select design cooling load components as sensible vs. latent for refrigeration purposes.
  • adapt the cycle modifications to improve cycle performance and/or to meet the requirements of a given application.
  • figure out the common types of refrigerants in terms of relevant thermophysical properties including ODP considering their usage areas. 
  • explain constructional and operational features of various types of condensers and evaporators; basis for their classification.
  • perform thermal design and performance analysis of various types of condensers and evaporators with emphasis given on heat transfer augmentation and extended surfaces.
  • analize the means of mechanical compression used in vapor compression refrigeration cycles; positive and non-positive displacement compressors.
  • perform basic cycle analysis for absorption refrigeration systems.
  • list the types and know the fundamentals of novel cooling techniques

Program Outcomes Matrix

Contribution
#Program OutcomesNoYes
1Ability to establish the relationship between mathematics, basic sciences and engineering sciences with engineering applications.
2Ability to find and interpret information
3Ability to follow the literature and technology related to his/her topic of interest
4Recognition of the need to keep oneself up to date in his/her profession
5Possession of written and oral communication skills
6Ability to conduct team work (within the discipline, inter-disciplinary, multi-disciplinary)
7Ability to produce original solutions
8Use of scientific methodology in approaching and producing solutions to engineering problems and needs
9Openness to all that is new
10Ability to conduct experiments
11Ability to do engineering design
12Awareness of engineering ethics, knowledge and adoption of its fundamental elements
13Ability to take societal, environmental and economical considerations into account in professional activities
14Possession of pioneering and leadership characteristics in areas related to the profession