JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Theories and Method of Chilling: Freezing and free de-humidification, Preparation for freezing, Freezing methods. Commercial freezing methods, Sharp, quick and air blast freezing, Freezing drying - Methods of pre-cooling fruits and vegetables, Hydro cooling, Forced air cooling and Vacuum cooling.

UNIT - II

Processing of Meat Products: Refrigeration systems for carcass chilling and holding, Chilled brine spray, Sprayed coil, Dry coil systems. Chilling and freezing variety meats, overnight chilling, quick chilling. Effect of freezing temperature on quality of meat products. Fishery Products: Icing of fish. Saltwater icing. Freezing methods, Slow freezing Blast freezing, Plate Freezing and Immersion freezing offish.

UNIT - III

Dairy Products: Milk processing, Handling, Diary plant procedure. Standardizing, Pasteurization, Homogenizing, and Container filling. Fruit Juice Concentrations: Processing and quality control selection, Grading and handling of fresh fruit, Washing, Juice extraction, Heat Treatment, Flavour fortification, Packing storage and distribution, Convection methods, freezing and mechanical separation. Low temperature vacuum evaporation, Direct refrigerant contact method. Indirect refrigerant contact methods, High temperature short time evaporations.

UNIT - IV

Refrigerated Warehouse: Factors affecting warehouse design, Building location, Design reduction. Shipping and receiving plant forms. Utility space, Controlled atmospheric storage rooms. Jacketed storages. Automated warehouse insulation, Cold storage doors.

UNIT - V

Refrigerated Trucks, Trailers & Containers: Temperature control methods, Body Design & construction, Auxiliary equipment, Types of refrigeration systems. Railway refrigeration cars.

REFERENCES:

• 1. Refrigeration and Air-Conditioning / C. P. Arora/ Dhanpat Rai & Co. rd
• 2. Food Processing Technology: Principles and Practice / Peter Fellows / Woodhead Publishing / 3 Edition / 2009
• 3. Guide and Data Book / ASHRAE.
• 4. Hand Book of Air-Conditioning system design/Carrier.
• 5. Basic Refrigeration & Air Conditioning – P.N. Ananathanarayanan – McGraw Hill
• 6. Principles of Refrigeration/ Dossat-Pearson I Year - I Sem. M. Tech (HV & AC) REFRIGERATION & AIR CONDITIONING LAB
• 1. Study and Performance of Vapor Compression Refrigeration Cycle
• 2. To find Performance of refrigeration test rig by using different expansion devices
• 3. To find performance Parameters of cooling Towers
• 4. To find performance parameters of an Ice Plant
• 5. To find performance parameters of Vapor Absorption Refrigeration system
• 6. Performance analysis of Vortex tube Apparatus
• 7. Performance analysis of Mechanical heat pump
• 8. Performance analysis of air conditioning law limit
• 9. Study of pull down characteristics of domestic refrigerator
• 10. Study of performance parameters using ventilation trainer