Basic Air-conditioning System
Air –Conditioning training systems is designed to provide scholars with fundamentals and advanced training program in basic and professional refrigeration. The training system introduces various systems and real components. The training system brings a comprehensive view of the entire refrigeration system. Actual components and their interconnection, functions, operation, diagnosis, and repair methods under hands-on safe activities are part of the training program.
Cohort 1 starts April ’22
What you will learn
- Actual components and their interconnection, functions, operation, diagnosis, and repair.
About this specialization
Air –Conditioning training systems is designed to provide scholars with fundamentals and advanced training program in basic and professional refrigeration. The training system introduces various systems and real components. The training system brings a comprehensive view of the entire refrigeration system. Actual components and their interconnection, functions, operation, diagnosis, and repair methods under hands-on safe activities are part of the training program.
Participants
- Lecturers
- Technologist
- Technician
- Researchers
- Scholars
- Engineering Internship
- Oil services firm
Enrollment Process
To begin, enroll in the Specialization directly, or review its levels (Beginners, Intermediate and Advanced) and choose the one you’d like to start with and proceed to pay via our paystack secured payment gateway.
Capstone Project
Every specialization includes a hands-on project. Students will need to complete the project(s) before a specialization is deemed completed.
Certification
After completing each specialization, a Certificate will be awarded to students which they can share with prospective employers and professional networks.
Register
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STEM
Science, Technology, Engineering, and Mathematics
Blended Learning
A combination of both physical and online
100% Practical
The course offers a practical and hands-on approach to learning
Beginner Level
No prior experience is required
English
Subtitle is available in different languages on our Learning Management System,
Certificate
A Certificate is awarded after completion of training
Capstone Project
A capstone project is required from the participant at the completion of training
There are 9 Modules and 109 Lessons in this Specialization
MODULE
1
Basic Cooling and Refrigeration Systems Main platform (3 Hours)
Lesson 1: Preface
Lesson 2: Control and display
Lesson 3: Refrigeration components
Lesson 4: Basic Refrigeration Panel, components and topics covered
Lesson 5: Professional Cooling System Panel, components and topics covered
Lesson 6: Panel replacing instructions
Lesson 7: Panel replacing procedure
MODULE
2
Experiment 1.1 – Introduction to Cooling and Refrigeration Systems (3 Hour)
Lesson 8: Objectives/Equipment required
Discussion on:
Lesson 9: Basic principles of refrigeration.
Lesson 10: Basic refrigeration cycle
Lesson 11: Basic operation of the system
Lesson 12: Composition of the main system
Lesson 13: Basic thermodynamic principles and terms
Lesson 14: Coefficient Of Performance (COP)
Lesson 15: P-h diagram
Lesson 16: Structure and operation of the system
Lesson 17: Preparatory questions
Lesson 18: Procedure
Lesson 19: Summary questions
MODULE
3
Experiment 1.2 – Pressure/Temperature Relation( 3 Hour)
Lesson 20: Accumulation states
Lesson 21: Basic cooling cycle in the Molliere (p-h) diagram
Lesson 22: The thermodynamic characteristics described in the Molliere diagram
Lesson 23: Theoretical cooling cycle
Lesson 24: Practical cooling cycle
Lesson 25: Pressure losses in the evaporator and condenser
Lesson 26: Enthalpy changes in the metering process
Lesson 27: Entropy changes in the compression process
Lesson 28: Pressure-enthalpy diagram for HFC-134a (SI units)
Lesson 29: Preparatory questions
Lesson 30: Procedure
Lesson 31: Summary questions
MODULE
4
Experiment 1.3 – Materials and Circuits of the Control System(3 hours)
Lesson 32: Objectives/equipment required.
Discussion:
Lesson 33: Cooling materials
Lesson 34: The cooling materials characteristics
Lesson 35: Usage of the main cooling materials
Lesson 36: Environmental hazard in cooling materials
Lesson 37: The cooling control methods
Lesson 38: Metering devices
Lesson 39: Capillary (CAP)
Lesson 40: The automatic expansion valve (TEV)
Lesson 41: Adjustment of the thermostatic expansion valve.
Lesson 42: Thermostatic expansion valve sizing
Lesson 43: Thermostatic expansion valve advantages
Lesson 44: Suction pressure valve
Lesson 45: Reversing valve
Lesson 46: Preparatory questions
Lesson 47: Procedure
Lesson 48: Summary questions
MODULE
5
Experiment 1.4 – Compressors Types (3 hours)
Lesson 49: Objectives/equipment required.
Discussion:
Lesson 50: The purpose of the compressor
Lesson 51: The hermetic, semi-hermetic and open type compressors
Lesson 52: Oil in the cooling system
Lesson 53: The crankcase heater
Lesson 54: Compressor protection safety devices
Lesson 55: Preparatory questions
Lesson 56: Procedures
Lesson 57: Summary questions
MODULE
6
Experiment 1.5 – Evaporation and condensing techniques (3 hours)
Lesson 58: Objectives/equipment required.
Lesson 59: Evaporators
Lesson 60: Air evaporators
Lesson 61: Water evaporators
Lesson 62: Condensers
Lesson 63: Air-cooled condenser
Lesson 64: The fan
Lesson 65: Thermal load
Lesson 66: Cooling capacity
Lesson 67: Thermal loads and external temperature change
Lesson 68: Calculating heat convection in evaporators and condensers
Lesson 69: The heat convection process
Lesson 70: Heat convection through the partition
Lesson 71: The pipes surround surface (the partition)
Lesson 72: Preparatory questions
Lesson 73: Procedure
Lesson 74: Summary questions
MODULE
7
Experiment 1.6 – Materials and Circuits of the Electrical System (3 hours)
Lesson 75: Objectives/equipment required.
Lesson 76: Control systems
Lesson 77: Control methods
Lesson 78: Principles of temperature control
Lesson 79: Temperature alert system
Lesson 80: Freezers and refrigerators control
Lesson 81: Temperature control using evaporation
Lesson 82: Pressure motor control
Lesson 83: Protection system for motors/compressors
Lesson 84: Relaxation devices
Lesson 85: Overload protection
Lesson 86: Starting relays for compressors
Lesson 87: Compressors starting methods
Lesson 88: Operation of the heat pump
Lesson 89: Preparatory questions
Lesson 90: Procedure
Lesson 91: Summary questions
MODULE
8
Experiment 1.7 – Troubleshooting (3 hours)
Lesson 92: Objectives/equipment required.
Discussion:
Lesson 93: The recommended steps for fault solution
Lesson 94: Customer complaints
Lesson 95: Preparatory questions
Lesson 96: Procedure
Lesson 97: Summary questions
MODULE
9
Experiment 1.8 – Maintenance methods and equipment required for servicing (3 hours)
Lesson 98: Objectives/equipment required.
Discussion:
Lesson 99: The pressure guages and manifold set
Lesson 100: Pressure gauge (low side)
Lesson 101: High pressure gauge (high side)
Lesson 102: The refrigerant recycling device – emptying the cooling system
Lesson 103: Servicing and maintaining the refrigeration system
Lesson 104: Maintaining the refrigeration compressor
Lesson 105: Cooling chamber maintenance
Lesson 106: Adjust of the thermostatic expansion valve
Lesson 107: Preparatory questions
Lesson 108: Procedure
Lesson 109: Summary questions
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A certificate is issued to every student that completes a course. This certificate is shareable on any platform (including all social media platforms) as proof of completion and certification of expertise. It should however be noted that, for a course to be deemed as completed, the student must have finished all capstone projects in the course.
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