REFRIGERATION
ME 76502

Course Objective:

To understand the concept of simple and advanced refrigeration systems and the working principle of various type of refrigeration systems, Cryogenics, various system of cryogenics. To analyze the merits and demerits of various type of refrigeration systems. To design cold storage.

1. Fundamentals of Refrigeration
   (2 hours)
   1. Introduction to Refrigeration
   2. Application of Refrigeration
   3. Refrigeration Systems
   4. Coefficient of performance of Refrigerator
2. Methods of refrigeration
   (5 hours)
   1. Ice Refrigeration
   2. Evaporative Refrigeration
   3. Refrigeration by Expansion of Air
   4. Refrigeration by Throttling of Gas
   5. Steam Jet Refrigeration System
   6. Dry Ice Refrigeration
3. Vapor Compression Refrigeration Systems with Multiple Evaporators and Compressors
   (6 hours)
   1. Introduction
   2. Multi Stage Compression Systems
   3. Multi Evaporator Systems
   4. Multi Evaporator and Multi Compression Systems
4. Chapter 4 Air Refrigeration Systems
   (6 hours)
   1. Introduction
   2.  Air Refrigeration working on Reversed Carnot Cycle
   3. Air Refrigeration working on Bell-Coleman Cycle
   4. Aircraft Refrigeration System
   5. Advantages and disadvantages of Air Refrigeration System
5. Steam Jet Refrigeration
   (3 hours)
   1. Introduction
   2. Advantages and disadvantages of Steam Jet Refrigeration
   3. Working of Steam Jet Refrigeration
   4. Analysis of Steam Jet Refrigeration
6. Low Temperature Refrigeration (Cryogenics)
   (5 hours)
   1. Introduction
   2. Limitations of Vapor Compressions Refrigeration systems for Production of Low Temperature
   3. Cascade Refrigeration System
   4. Production of Dry Ice
   5. Linde system and Claude system for Liquefaction of Air
   6. Liquefaction of Hydrogen and Helium
   7. Application of Low Temperature
7. Non Conventional Refrigeration System
   (4 hours)
   1. Thermoelectric Refrigeration System
   2. Vertex Tube Refrigeration System
   3. Pulse Tube Refrigeration System
8. Cooling by Adiabatic Demagnetization Applications of Refrigeration
   (8 hours)
   1. Food Preservation
      1. Introduction
      2. Factors contributing to food spoilage
      3. Methods of food preservation
      4. Methods of food freezing
      5. Food Processing / Preservation by Refrigeration
   2. Ice Manufacturing
   3. Air-conditioning
   4. Domestic Refrigerators
   5. Display cases
   6. Water Coolers
9. Cooling Load Calculations for cold stores
   (6 hours)
   1. Introduction
   2. Wall gain Loads
   3. Product Load
   4. Occupant load
   5. Equipment Load
   6. Process load
   7. Infiltration load

Practical:

1. Analysis of Simple vapor compression refrigeration system
2. Analysis of modified vapor compression refrigeration system
3. Study on effect of various conditions on COP
4. Study on effect of performance of various components on COP
5. Field study of cold rooms for vegetables and meat products
6. Field study of dairy industry

References:

1. Dossat, “Principles of Refrigeration”, John Wiley and Sons.
2. W.F. Stoecker, “Refrigeration & Air-conditioning”, McGraw Hill Publishing Co. Ltd.
3. “ASHRAE Hand Book of Refrigeration”, ASHRAE
4. Arora & Domkundwar, “A Course in Refrigeration & Air-conditioning”, Dhanpat Ria & Co.
5. R.K. Rajput, “Refrigeration & Air-conditioning”, Katson Books.
6. Michael Boast, “Newness Refrigeration Pocket Book”, CBS publishers.
7. S.B. Mathur & S. Domkundwar, “Elements of Mechanical Engineering”, Danpat Rai & Co.

Evaluation Scheme:

The questions will cover all the chapters in the syllabus. The evaluation scheme will be as indicated in the table below:

*There could be minor deviation in mark distribution.