Complete Guide To Refrigeration, Hvac Systems & Cryogenics

Learn HVAC systems, Refrigeration, VCRS, VARS, Multi-load cooling, Cascade, Cryogenics, Gas Liquefaction & Psychrometry

What you'll learn

Understand Core Principles – Explain the working of vapor compression and vapor absorption refrigeration systems, low-temperature refrigeration

Understand different components- Compressors, evaporators, expansion valves, Chillers, Air Handling Units, Fan Coil Units

Analyze Cooling Technologies – steam jet, vortex tube, thermoelectric cooling, dry ice systems, and gas liquefaction processes

Understand the different air refrigeration systems and their working

Apply Psychrometry & HVAC Concepts – Interpret psychrometric charts and evaluate different HVAC system types for various climate control applications.

Solve Design problems to analyse the performance (COP) of VCRS, VARS, and air refrigeration systems & room load calculations in air conditioning

Requirements

You will learn everything from Basic to Advance of Refrigeration, HVAC systems and Cryogenics

Description

This comprehensive course is your complete guide to Refrigeration, different HVAC Systems, and Cryogenics and designed for students, engineers, technicians, and industry professionals. Starting from the fundamentals, you will master Refrigeration, Vapor Compression Refrigeration Systems (VCRS) , Vapor Absorption Refrigeration Systems (VARS), and their real-world applications in commercial, residential, and industrial sectors You’ll explore the functioning of compressors, condensers, evaporators, expansion devices, and gain in-depth knowledge of refrigerants and their environmental impact. Advanced topics include cascade refrigeration, multi-evaporator systems, compound compression, individual compressor using multiple and individual expansion valves for evaporator carrying cooling load and special refrigeration  technologies such as steam jet refrigeration, vortex tube cooling, thermoelectric cooling, and dry ice systems.Later, will explore different air refrigeration systems & their coefficient of performance to understand the cooling in aircrafts which is the oldest cooling. The course also covers gas liquefaction processes, cryogenic engineering principles, and the use of liquid nitrogen, liquid hydrogen, and liquid helium in modern applications. In the HVAC section, you’ll learn psychrometry, air conditioning system types, load calculations, and performance optimization techniques for energy efficiency. In depth discussion on various central and unitary AC systems along with complete HVAC systems as of ducted split HVAC , Rooftop Unit HVAC, DOAS+FCU based HVAC,  Geothermal HVAC and many more. Whether you are preparing for technical exams, industry certifications, or skill upgrades, this course equips you with practical examples, problem-solving techniques to excel in both academic and professional settings.By the end, you’ll have the confidence to conceptualize, design and  analyze the complete refrigeration and HVAC systems;  Low temperature refrigeration & gas liquefaction for different applications.

Overview

Section 1: Introduction & Vapor Compression Refrigeration System (VCRS)

Lecture 1 Introduction: Refrigeration and Tonnes of Refrigeration

Lecture 2 Single stage VCRS

Lecture 3 p-h & T-s diagrams, COP for simple vapor compression refrigeration system

Lecture 4 Vapor compression refrigeration system with fans for active airflow

Lecture 5 Factors affecting the performance (COP) of VCRS-Part 1

Lecture 6 Factors affecting the performance (COP) of VCRS -Part 2

Lecture 7 Actual Vapor Compression Refrigeration System

Lecture 8 Numerical Problem on VCRS

Lecture 9 Refrigerants: Selection & Environmental Impact

Lecture 10 Types of Compressors

Lecture 11 Important terms related to compressor design

Lecture 12 Important formula's related Compressor

Lecture 13 Expansion Valves & Flow Control Devices in Refrigeration Systems

Section 2: Advanced Vapor Compression Refrigeration Systems

Lecture 14 Two stage compression with intercooling and subcooling

Lecture 15 Three-stage compression with water intercoolers

Lecture 16 Three stage compression with flash intercooling and individual expansion valve

Lecture 17 Three stage compression with multiple expansion valves and flash chambers

Lecture 18 Individual compressors with multiple expansion valves and flash chambers

Lecture 19 Multi-evaporators at same temperatures with single expansion valve

Lecture 20 Multi-evaporators at different temperatures with individual expansion valves

Lecture 21 Multi-evaporators at different temperatures with multiple expansion valves

Lecture 22 Multi-evaporators with individual expansion valves & compound compression

Lecture 23 Multi-evaporators with multiple expansion valves and individual compressors

Lecture 24 Numerical Problem: Three-stage compression with EV and Flash intercooler

Lecture 25 Numerical Problem : Multi evaporator, multiple EVs and individual compressors

Lecture 26 Numerical Problem: Multi evaporator with individual EVs and back pressure valves

Section 3: Vapor Absorption Refrigeration System (VARS)

Lecture 27 Vapor Absorption Refrigeration System (VARS)

Lecture 28 Domestic Electrolux Refrigerator

Lecture 29 Lithium Bromide Absorption Refrigeration System

Lecture 30 Numerical Problem based on VARS

Section 4: Air Refrigeration System

Lecture 31 Introduction to Air Refrigeration: Bell Coleman or Reversed Brayton Cycle

Lecture 32 Types of Air Refrigeration Systems

Lecture 33 Simple Air Refrigeration System

Lecture 34 COP of Simple Air Refrigeration System

Lecture 35 Bootsrap Air Refrigeration system

Lecture 36 COP of Bootsrap Air Refrigeration system

Lecture 37 Bootstrap Air Evaporative Refrigeration system

Lecture 38 COP of Bootsrap Air Evaporative Refrigeration system

Lecture 39 Regenerative Air Refrigeration System

Lecture 40 COP of Regenerative Air Refrigeration system

Lecture 41 Reduced Ambient Air Refrigeration System

Lecture 42 COP of Reduced Ambient Air Refrigeration System

Lecture 43 Dry Air Rated Temperature (DART)

Lecture 44 Numerical Problem

Section 5: Liquefaction and Low Temperature Refrigeration (Cryogenics)

Lecture 45 Introduction: Low Temperature Refrigeration & Liquefaction of Gases

Lecture 46 Cascade Refrigeration System

Lecture 47 Dry Ice Refrigeration

Lecture 48 Liquefaction of air: Linde system

Lecture 49 Liquefaction of air: Linde system with precooling by evaporator

Lecture 50 Liquefaction of air: Claude system

Lecture 51 Liquefaction of Helium Gas

Lecture 52 Liquefaction of Hydrogen Gas

Section 6: Special Refrigeration Systems

Lecture 53 Introduction: Steam Jet Refrigeration Systems

Lecture 54 Various efficiencies in Steam Jet Refrigeration System

Lecture 55 Motive steam required in steam jet refrigeration & its COP

Lecture 56 Vortex Tube Refrigeration

Lecture 57 Thermoelectric Cooling and Peltier Effect

Section 7: Psychrometry and Air Conditioning

Lecture 58 Important terms in Psychrometry Study

Lecture 59 Psychrometric Processes

Lecture 60 Importance of Bypass Factor (BF)

Lecture 61 Numerical Problem based on sensible heating

Lecture 62 Numerical Problem based on cooling and dehumidification

Lecture 63 Key terms to understand heat load calculations in air conditioning design

Lecture 64 Numerical Problem based on cooling load calculation

Lecture 65 Central Air Conditioning vs Unitary Air Conditioning

Lecture 66 Central Air Conditioning

Lecture 67 Chilled Water Air Handling Unit

Lecture 68 Types of Evaporators in Chillers

Lecture 69 Direct Expansion Air Handling Unit

Section 8: Heating Ventilation & Air Conditioning (HVAC) Systems & Applications

Lecture 70 HVAC Overall Components

Lecture 71 Central AC vs HVAC

Lecture 72 Types of HVAC systems: Ducted Split HVAC System

Lecture 73 Rooftop Package HVAC System

Lecture 74 VRF / VRV + DOAS based HVAC system

Lecture 75 Chiller + AHU + Boiler based HVAC system

Lecture 76 DOAS + FCU based HVAC system

Lecture 77 Hydronic HVAC system

Lecture 78 Geothermal HVAC system

Lecture 79 Hybrid HVAC system

The course will benefit undergraduate and postgraduate students of mechanical, aerospace, chemical, and allied disciplines, professionals working in refrigeration, air-conditioning, pharmaceutical, aerospace, and cryogenic industries, as well as researchers pursuing advanced work in low-temperature engineering. It is also valuable for competitive examination aspirants (GATE, ISRO, BARC, PSU) where refrigeration and cryogenics form a significant component.