Duration of the online course: 9 hours and 11 minutes
5
(2)
Understanding refrigeration and air conditioning is a practical advantage in many technical careers, from building maintenance to industrial operations. This free online course builds a solid foundation in how cooling systems work, why they are designed the way they are, and how efficiency and performance are evaluated in real conditions. You will move from core principles of refrigeration to the logic behind common system choices, giving you the confidence to discuss, analyze, and troubleshoot concepts used across HVAC and refrigeration applications.
The learning path starts with the essential thermodynamics of refrigeration, distinguishing refrigerators from heat pumps and focusing on key measures of performance. You will understand COP and why it matters, connect cooling capacity with power input, and relate efficiency concepts to real-world indicators such as EER and star ratings. Rather than treating these metrics as formulas to memorize, the course frames them as decision tools that influence operating cost, system selection, and responsible energy use.
As you progress, you will explore ideal and practical refrigeration cycles, including the reversed Carnot perspective and air refrigeration systems. You will also examine the reversed Brayton or Bell Coleman cycle and how actual performance differs from theoretical behavior, developing intuition around losses and component efficiencies. Aircraft refrigeration concepts introduce applications where design constraints and operating conditions shape the cycle, helping you appreciate how engineering trade-offs appear in specialized systems.
The course then shifts to vapour compression refrigeration, the most widely used approach in modern cooling. You will follow the cycle from concept to analysis, interpret common diagrams, and recognize sources of deviations such as pressure drops and non-ideal compression. Along the way, practice questions help you check understanding and strengthen problem-solving, making the theory more usable when reading specifications, comparing systems, or preparing for technical interviews.
Finally, you will learn how refrigerants are designated, what properties make a refrigerant suitable, and how environmental indicators like ODP and GWP affect choices today. By the end, you will have a clear, structured understanding of refrigeration and air conditioning fundamentals, with an efficiency-aware mindset aligned with current industry expectations.
Video class: Basic Concepts of Refrigeration - Introduction to Refrigeration - Refrigeration and Air Conditioning
04m
Exercise: Which of the following substances is commonly used as a refrigerant in air conditioning systems?
Video class: Concept of Refrigerator and Heat Pump - Introduction to Refrigeration
15m
Video class: COP and significance of COP - Introduction to Refrigeration - Refrigeration and Air Conditioning
15m
Video class: Tonne of Refrigeration TR, Refrigeration Capacity and Power Input - Introduction to Refrigeration
16m
Video class: COP, Energy Efficiency Ratio EER and BEE Star Rating - Introduction to Refrigeration
18m
Video class: Concept of Reversed Carnot Cycle - Introduction to Refrigeration - Refrigeration
11m
Video class: Introduction to Air Refrigeration Systems - Introduction to Refrigeration
17m
Video class: Analysis of Reversed Brayton or Bell Coleman Cycle - Introduction to Refrigeration
26m
Video class: Actual Reversed Brayton or Bell Coleman Cycle - Introduction to Refrigeration
16m
Video class: Isentropic Efficiency of Turbine and Compressor - Introduction to Refrigeration
16m
Video class: Concept of Simple Air Craft Refrigeration System - Aircraft Air Refrigeration Systems
20m
Video class: Simple Air Craft Refrigeration Cycle (Ramming Process) - Aircraft Air Refrigeration Systems
13m
Exercise: What does the ramming process in aircraft refrigeration primarily aim to achieve?
Video class: DART and Rating Comparison - Aircraft Air Refrigeration Systems - Refrigeration and Air Conditioning
20m
Video class: Concept of Simple Vapour Compression Refrigeration System - Vapour Compression Refrigeration System
12m
Video class: Analysis of Simple Vapour Compression Refrigeration System - Vapour Compression Refrigeration System
14m
Video class: Actual VCR cycle, TS and p-h Diagram - Vapour Compression Refrigeration System
14m
Exercise: What causes pressure drop in the evaporator of an actual vapor compression refrigeration system?
Video class: Numericals- Simple Vapour Compression Refrigeration System - Vapour Compression Refrigeration System
19m
Video class: Introduction to Designation of Refrigerants - Refrigerants - Refrigeration and Air Conditioning
21m
Exercise: What is the correct chemical designation for refrigerant R12?
Video class: Desirable Properties of Refrigerants: Part-1 - Refrigerants - Refrigeration and Air Conditioning
16m
Video class: Effects of Refrigerants on Environment ODP, GWP - Refrigerants - Refrigeration and Air Conditioning
14m
Exercise: What is the standard reference compound for measuring Ozone Depletion Potential (ODP)?
9 hours and 11 minutes of online video course
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Course comments: Refrigeration and Air conditioning
MOHSIN GULAB
highly recommended..
MOHSIN GULAB
highly recommended..
Jean
This is a good app to learn and to grow as a person, after completing the cours I can that I stand a better chance to find a job. I recommend this pla
Jean
I would recommend Ekeeda to anyone who wants to learn andbgrow as a person. Now after completing the courses I can boldly say I stand a better chance.