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Video lectures on Refrigeration and Air Conditioning


saurabhjain

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Video lectures on Refrigeration and Air Conditioning

Department of Mechanical Engineering

IIT Kharagpur

Lecture -1 History of Refrigeration

http://mechanical-engineering.in/forum/videos/view-40-lecture-1-history-of-refrigeration/

Lecture -2 Refrigerant Compressors and Development

http://mechanical-engineering.in/forum/videos/view-41-lecture-2-refrigerant-compressors-and-development/

Lecture -3 Applications of RTAC

http://mechanical-engineering.in/forum/videos/view-68-lecture-3-applications-of-rtac/

Lecture -4 Review of Fundamentals

http://mechanical-engineering.in/forum/videos/view-69-lecture-4-review-of-fundamentals/

Lecture 5: Review of Fundamentals

http://mechanical-engineering.in/forum/videos/view-70-lecture-5-review-of-fundamentals/

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Lecture -6 Fundamentals of Fluid Flow

http://mechanical-engineering.in/forum/index.php?app=videos

Lecture -7 Fundamentals of Heat Transfer

http://mechanical-engineering.in/forum/videos/view-72-lecture-7-fundamentals-of-heat-transfer/

Lecture -8 Methods of Producing Low Temperatures

http://mechanical-engineering.in/forum/videos/view-73-lecture-8-methods-of-producing-low-temperatures/

Lecture -9 Air Cycle Refrigeration Systems

http://mechanical-engineering.in/forum/videos/view-74-lecture-9-air-cycle-refrigeration-systems/

Lecture -10 Vapour Compression Refrigeration Systems

http://mechanical-engineering.in/forum/videos/view-75-lecture-10-vapour-compression-refrigeration-systems/

Lecture -11 Vapour Compression Refrigeration Systems

http://mechanical-engineering.in/forum/videos/view-76-lecture-11-vapour-compression-refrigeration-systems/

Lecture -12 Vapour Compression Refrigeration Systems(contd.)

http://mechanical-engineering.in/forum/videos/view-77-lecture-12-vapour-compression-refrigeration-systemscontd/

Lecture -13 Vapour Compression Refrigeration Systems(contd.)

http://mechanical-engineering.in/forum/videos/view-78-lecture-13-vapour-compression-refrigeration-systemscontd/

Lecture -14 Vapour Absorption Refrigeration Systems

http://mechanical-engineering.in/forum/videos/view-79-lecture-14-vapour-absorption-refrigeration-systems/

Lecture - 15 Vapour Absorption Refrigeration System

http://mechanical-engineering.in/forum/videos/view-80-lecture-15-vapour-absorption-refrigeration-system/

Lecture -16 Vapour Absorption Refrigeration Systems(Contd.)

http://mechanical-engineering.in/forum/videos/view-81-lecture-16-vapour-absorption-refrigeration-systemscontd/

Lecture -17 Vapour Absorption Refrigeration Systems (Contd.)

http://mechanical-engineering.in/forum/videos/view-82-lecture-17-vapour-absorption-refrigeration-systems-contd/

Lecture -18 Worked Out Examples 1

http://mechanical-engineering.in/forum/videos/view-83-lecture-18-worked-out-examples-1/

Lecture -19 Worked Out Examples 2

http://mechanical-engineering.in/forum/videos/view-84-lecture-19-worked-out-examples-2/

Lecture 20: Compressor - I

http://mechanical-engineering.in/forum/videos/view-85-lecture-20-compressor-i/

Lecture 21: Compressor - II

http://mechanical-engineering.in/forum/videos/view-86-httpmechanical-engineeringinforumvideosview-85-lecture-20-compressor-i/

Lecture 22: Compressor - III

http://mechanical-engineering.in/forum/videos/view-87-lecture-22-compressor-iii/

Lecture 23: Compressor - IV

http://mechanical-engineering.in/forum/videos/view-88-lecture-23-compressor-iv/

Lecture 24: Compressor - V

http://mechanical-engineering.in/forum/videos/view-89-lecture-24-compressor-v/

Lecture 25: Compressor - VI

http://mechanical-engineering.in/forum/videos/view-90-lecture-25-compressor-vi/

Lecture 26: Condensers - I

http://mechanical-engineering.in/forum/videos/view-91-lecture-26-condensers-i/

Lecture 27: Condensers - II

http://mechanical-engineering.in/forum/videos/view-92-lecture-27-condensers-ii/

Lecture 28: Condensers and Evaporators

http://mechanical-engineering.in/forum/videos/view-93-lecture-28-condensers-and-evaporators/

Lecture 29: Evaporators

http://mechanical-engineering.in/forum/videos/view-94-lecture-29-evaporators/

Lecture 30: Expansion Devices - I

http://mechanical-engineering.in/forum/videos/view-95-lecture-30-expansion-devices-i/

Lecture 31: Expansion Devices - II

http://mechanical-engineering.in/forum/videos/view-96-lecture-31-expansion-devices-ii/

Lecture 32: Analysis of Complete Vapour Compression System

http://mechanical-engineering.in/forum/videos/view-97-lecture-32-analysis-of-complete-vapour-compression-system/

Lecture 33: Refrigerants

http://mechanical-engineering.in/forum/videos/view-98-lecture-33-refrigerants/

Lecture 34: Psychrometry

http://mechanical-engineering.in/forum/videos/view-99-lecture-34-psychrometry/

Lecture 35: Psychrometric Processes

http://mechanical-engineering.in/forum/videos/view-100-lecture-35-psychrometric-processes/

Lecture 36: Inside Design Conditions Thermal Comfort

http://mechanical-engineering.in/forum/videos/view-101-lecture-36-inside-design-conditions-thermal-comfort/

Lecture 37: Psychrometry of Air Conditioning Systems

http://mechanical-engineering.in/forum/videos/view-102-lecture-37-psychrometry-of-air-conditioning-systems/

Lecture 38: Air Conditioning Systems

http://mechanical-engineering.in/forum/videos/view-103-lecture-38-air-conditioning-systems/

Lecture - 39 Cooling & Heating Load Calculations

http://mechanical-engineering.in/forum/videos/view-104-lecture-39-cooling-heating-load-calculations/

Lecture 40: Cooling and Heating Load Calculations part 1

http://mechanical-engineering.in/forum/videos/view-105-lecture-40-cooling-and-heating-load-calculations/

Lecture 41: Cooling and Heating Load Calculations part 2

http://mechanical-engineering.in/forum/videos/view-106-lecture-41-cooling-and-heating-load-calculations-part-2/

Lecture 42: Cooling and Heating Load Calculations part 3

http://mechanical-engineering.in/forum/videos/view-107-lecture-42-cooling-and-heating-load-calculations-part-3/

Lecture 43: Selection of Air Conditioning Systems

http://mechanical-engineering.in/forum/videos/view-108-lecture-43-selection-of-air-conditioning-systems/

Lecture 44: Transmission and Distribution of Air part 1

http://mechanical-engineering.in/forum/videos/view-109-lecture-44-transmission-and-distribution-of-air-part-1/

Lecture 45: Transmission and Distribution of Air Part 2

http://mechanical-engineering.in/forum/videos/view-110-lecture-45-transmission-and-distribution-of-air-part-2/

Lecture 46: Space Air Distribution

http://mechanical-engineering.in/forum/videos/view-111-lecture-46-space-air-distribution/

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Refrigeration cycle

Refrigeration cycle is a cycle of mechanical system in which transmission of heat allow from one place at a lower temperature (the source ) to another place at a higher temperature ( the sink or heat sink ) by continuously circulating, evaporating, and condensing a fixed supply of refrigerant in a closed system.

Or,Refrigeration cycle is thermodynamic cycle to generate refrigerating effect with the use of evaporator, compressor, condenser & expansion valve.

Thus, a heat pump is called as a "heater" if the objective is to warm the heat sink (as when warming the inside of a home on a cold day), or a "refrigerator" or “cooler” if the objective is to cool the heat source (as in the normal operation of a freezer).

 In both case, the operating principles are close.Heat is removed from a cold place to a warm place.

Note :- Refrigeration cycle is also called heat pump cycle.

Diagram of refrigeration cycle.

Vapour compression cycle

Vapour Compression Refrigeration Cycle is the most widely used refrigeration system.

Vapor-compression cycle refrigeration is a process that uses the physics of phase change heat transfer and the unique properties of a refrigerant to transfer heat from a relatively cold source to a hot medium. 

Basic Refrigetion cycle

The basic components of any refrigeration system working on the vapour compression cycle,are the compressor,condenser, expansion valve and evaporator and the refrigerant fluid which is alternatively vaporized and liquefied during the refrigeration cycle.

The temperature at which a fluid boils or condeses,is known as the saturation temperature and it varies with temperature.

Basic components of refrigeration cycle

The 4 main Components of Refrigeration cycle

1.Compressor
2.Condenser
3.Expansion valve
4.Evaporator

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