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REFRIGERATION SYSTEMS

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REFRIGERATION SYSTEMS

The term refrigeration means cooling a space, substance or system to lower and/or maintain its temperature below the ambient one (while the removed heat is rejected at a higher temperature). ... Refrigeration has many applications, including household refrigerators, industrial freezers, cryogenics, and air conditioning.

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Course Content

7 sections • 27 lectures • 04h 15m total length
What is Refrigerator
5min
Industrial Refrigeration system

Industrial refrigeration system basics, in this video we'll be looking at how ammonia refrigeration systems work, starting at the basics to understand how industrial refrigeration systems work. We'll be looking at system schematics and animations to build your refrigeration knowledge. We cover why we use ammonia, where we use industrial refrigeration, single stage systems, two stage systems and cascade systems.

10min
How Vapor Compression Refrigeration System Works

In this video we will learn the detailed working process of Vapor Compression Refrigeration System, by properly understanding the functions of different components easily.

10min
Compressor - Types of Compressor

A compressor is a mechanical device that increases the pressure of a gas or air by reducing its volume. Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. As air or gases are compressible, the compressor also reduces the volume of an air or gas. In this video we will see the Different types of compressor. There are mainly 5 types of compressor that are normally used in our industry. 1. Reciprocating Compressor. 2. Rotary Compressor. 3. Scroll compressor. 4. Screw Compressor. 5. Centrifugal compressor.

10min
Refrigeration Cycle

In this HVAC Video, I give a Tutorial to Explain the Refrigeration Cycle with Superheat and Subcooling Step by Step, Detailed and Concise! I go over how the Basic Refrigeration Cycle works from where the refrigerant enters the vapor compressor as it goes completely through the system, what the saturated state is, what superheat, total superheat, and subcooling are, as well as other detailed comments as we go through the system.

10min
METHODS OF IMPROVING COP

METHODS OF IMPROVING COP OF VAPOUR COMPRESSION CYCLE

10min
Multi Evaporator at same Temperature With Single Compressor and Expansion Valve

In this video, i explained Multi Evaporator at same Temperature With Single Compressor and Expansion Valve 1.Schematic Diagram 2.Function of Multi Evaporator 3.How to Draw P-h Diagram 4.Equation Of Cop

10min
Refrigerant Types, Issues and Future

In this video we will be learning the basic types of refrigerants, their history and future as well what impact they've had on our environment. Covering CFC, HCFC, HFC, HFO, Carbon dioxide, ammonia, CH, ozone layer depletion and greenhouse gases.

10min
Steamjet Refrigeration System Explained

Steam is passed through a vacuum ejector of high efficiency to exhaust a separate, closed vessel which forms part of a cooling water circuit. The partial vacuum in the vessel causes some of the water to evaporate, thus giving up heat through evaporative cooling. The chilled water is pumped through the circuit to air coolers, while the evaporated water from the ejector is recovered in separate condensers and returned to the cooling circuit.

10min
Concept of Thermo Electric Refrigeration

Concept of Thermo Electric Refrigeration

10min
What is Refrigeration in Food Preservation

Refrigeration are cold storage of food and is the gentle method of food preservation. Main elements include condensor, compressor, expansion valve and evaporator To Know more please Subscribe Our Channel......

5min
Limitations of vapour compression refrigeration system

 Limitations of vapour compression refrigeration system

10min
Joule Thomson Effect

Joule Thomson Effect

preview 10min
constant pressure expansion valve

constant pressure expansion valve

10min
Electronic Expansion Valve

Electronic Expansion Valve 

10min
Thermostatic expansion valve

Thermostatic expansion valve

10min
How to Check Evaporator Superheat

How to Check Evaporator Superheat

5min
Superheat and Subcooling

Superheat and Subcooling 

10min
How to Adjust Thermostatic Expansion Valve Superheat

How to Adjust Thermostatic Expansion Valve Superheat

10min
Low pressure controller

Low pressure controller

10min
Principles of Defrost

Principles of Defrost

10min
Heating Ventilation & Air Conditioning

Heating Ventilation & Air Conditioning

10min
Psychrometric Chart

Psychrometric Chart

10min
zoning systems

Pros and Cons of HVAC Zoning Do you need it? Basic zoning systems

10min
Cooling Load Calculation

Cooling Load Calculation

10min
Thermal Comfort in Buildings

Thermal Comfort in Buildings

10min
Indoor Air Quality

Indoor Air Quality 

10min

Requirements

  • Basic AC System Knowledge

Description

REFRIGERATION SYSTEM 

Refrigeration System | Chilling Cycle Defined

Course Objective
After the completion of this course, students will be able to understand the different types of refrigeration and air-conditioning system used in the industry. They will also be able to design the refrigeration and air-conditioning system.


Course outline

 

    1. Air refrigeration and Vapour compression system(7 Hours)
      1. Carnot cycle and refrigerator, Bell Columan refrigeration system and the cycle analysis, Simple cooling and simple evaporator and compression system, Vapour compression Refrigeration system with multiple evaporator and compressor. Methods of improving COP. Multi evaporator and compression system.

 

    1. Conventional and Unconventional refrigeration system and ozone layer (6 Hours)
      1. HFC refrigerant and their role in thinning of ozone layer. Refrigerants; footprints. Potential ozone depletion ratio. Montreal protocol. Alternate refrigerants and the thermodynamic properties of R13a.
      2. Steam jet refrigeration system. Thermo electric refrigeration system, vortex tube

 

    1. Preservation and Cryogenics (6 Hours)
      1. Methods of food preservation, Production of low temperature and the uses of liquefied gases. Limitations of vapor compression system for the production of low temperature. Multistage and cascade systems. Joule Thompson's effect. Liquefaction of gases.

 

    1. Control Components (5 Hours)
      1. Control components used in refrigeration systems: automatic expansion value, thermostatic expansion valve and superheat setting. Jogj-pressure and low pressure cutout. Differential setting. Methods of de-frosting.
      2. Introduction to HVAC Systems (7 Hours)
        1. Introduction,Introducing the Psychrometric Chart , Basic Air-Conditioning System , Zoned Air, Conditioning Systems , Choosing an Air-Conditioning System , System Choice Matrix

 

      1. Thermal Comfort Ventilation and Indoor Air Quality (7 Hours)
        1. Introduction, Seven Factors Influencing Thermal Comfort , Conditions for Comfort Air Pollutants and Contaminants, Indoor Air Quality Effects on Health and Comfort , Controlling Indoor Air Quality

 

      1. System load determination (5 Hours)
        1. Use of cooling loads in system sizing.

Practical:

      1. Humidifier and dehumidifier
      2. Vapour absorption refrigeration system
      3. Fan and duct system in air conditioning
      4. Refrigerant filling and unfilling system
      5. System load calculation

References:

    1. Arora, Domkundwar, "Acourse in Refrigeration and air conditioning (environmental Engineering)", Dhanpat Rai and co
    2. Prasad, Manohar, "New Refrigeration and Air Conditioning (Secon)", Age International publishers
    3. Ballaney, P.L, "Refrigeration and Air Conditioning", Khanna Publishers
    4. Khurmi , R.S., Gupta J.K., "A text book of Refrigeration and Air Conditioning", S.Chand
    5. Arora, C.P., Refrigeration and air Conditioning", TATA McGraw Hill

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About the Instructor

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