RAC_New_Pak_Technical_Traing_Centre
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Refrigeration & Air Conditioning.. ( HVACR ) HVAC
Course Description: This course covers the fundamental principles and practical applications of refrigeration and air conditioning systems. Students will learn about the basic components of refrigeration and air conditioning systems, the thermodynamics of refrigeration cycles, refrigerant properties and types, refrigeration and air conditioning system design, installation, maintenance and troubleshooting.
Course Objectives: Upon completion of this course, students will be able to:
- Describe the basic components and operation of refrigeration and air conditioning systems
- Apply thermodynamic principles to analyze and optimize refrigeration cycles
- Identify and select appropriate refrigerants for different applications
- Design, install and maintain refrigeration and air conditioning systems
- Troubleshoot common problems in refrigeration and air conditioning systems
Course Outline:
I. Introduction to Refrigeration and Air Conditioning
- Historical development of refrigeration and air conditioning
- Types of refrigeration and air conditioning systems
- Basic components of refrigeration and air conditioning systems
II. Thermodynamics of Refrigeration Cycles
- The refrigeration cycle
- Vapor compression refrigeration cycle
- Absorption refrigeration cycle
- Thermodynamic analysis of refrigeration cycles
III. Refrigerants
- Properties of refrigerants
- Types of refrigerants
- Selection of refrigerants for different applications
IV. System Design and Installation
- Refrigeration and air conditioning system design
- Load calculation and equipment selection
- Piping design and installation
- Electrical design and installation
V. Maintenance and Troubleshooting
- Preventive maintenance
- Troubleshooting common problems in refrigeration and air conditioning systems
- Safety procedures and regulations
VI. Emerging Trends and Technologies
- New refrigerants and technologies
- Alternative refrigeration and air conditioning systems
- Environmental impact and regulations
Course Delivery: This course will be delivered through lectures, hands-on laboratory sessions, and group projects. Students will have access to industry-standard equipment and software for designing, installing and maintaining refrigeration and air conditioning systems. The course will also incorporate case studies and guest lectures from industry professionals to provide students with real-world examples and insights.
Work involves installation and maintenance of systems in domestic, retail, office or industrial environments. Refrigeration work covers sectors such as the food production, transport, storage and distribution services and hospital medical services.
Technicians Duties
Undertaking initial surveys of proposed or existing buildings or facilities,
producing drawings and estimates, usually by computer-aided design
project work, organizing the craftspeople, materials and installation
supervising work through to completion.
In most cases technicians work as part of a team. For a major project, the team might be under the direction of a qualified engineer, but smaller projects may be supervised by technicians.
Skills & Interests
As a refrigeration or air-conditioning technician:
• Have a good knowledge of physics and chemistry.
• Be interested in electrical and electronic equipment.
• Have good math’s skills for technical calculations and costing.
• Have good spoken communication skills.
• Be able to explain technical matters in clear terms.
• Be able to read technical drawings, cabling plans and basic circuit diagrams.
• Have a polite, pleasant manner
• Have normal colour vision
• Be aware of health and safety issues.
Opportunities
Air-conditioning is an expanding industry worldwide. Rapid economic development overseas means there are many opportunities to work abroad.
Technicians can specialize in particular areas such as transport refrigeration and with further training, they can progress into supervisory management positions.
I. Introduction to Refrigeration and Air Conditioning This section will provide an overview of the historical development of refrigeration and air conditioning, as well as the different types of refrigeration and air conditioning systems that exist. Students will learn about the basic components of these systems, including compressors, condensers, evaporators, expansion valves, and refrigerant lines.
II. Thermodynamics of Refrigeration Cycles In this section, students will learn about the thermodynamics of refrigeration cycles, including the vapor compression refrigeration cycle and the absorption refrigeration cycle. They will also learn how to perform thermodynamic analyses of these cycles, using concepts such as entropy, enthalpy, and the coefficient of performance.
III. Refrigerants This section will cover the properties of refrigerants, including their thermodynamic properties, flammability, toxicity, and environmental impact. Students will learn about the different types of refrigerants that are commonly used in refrigeration and air conditioning systems, including CFCs, HCFCs, HFCs, and natural refrigerants such as CO2 and ammonia. They will also learn how to select the appropriate refrigerant for a given application, taking into account factors such as system efficiency, cost, and environmental impact.
IV. System Design and Installation This section will cover the design and installation of refrigeration and air conditioning systems, including load calculation, equipment selection, piping design, and electrical design. Students will learn about the different types of systems that are commonly used, including split systems, packaged systems, and central plant systems. They will also learn about the different types of refrigeration and air conditioning equipment, such as compressors, condensers, and evaporators, and how to select and install these components.
V. Maintenance and Troubleshooting In this section, students will learn about the importance of preventive maintenance in refrigeration and air conditioning systems, and the different types of maintenance that are required. They will also learn how to troubleshoot common problems that occur in these systems, such as leaks, compressor failures, and refrigerant charge issues. Finally, they will learn about the safety procedures and regulations that are associated with refrigeration and air conditioning systems.
VI. Emerging Trends and Technologies This section will cover the latest trends and technologies in refrigeration and air conditioning, including new refrigerants and alternative systems such as geothermal, solar, and absorption cooling. Students will also learn about the environmental impact of refrigeration and air conditioning systems, and the regulations that are in place to mitigate this impact. They will explore the current research and development in this field and how it is shaping the future of refrigeration and air conditioning.
For further detail, please contact to Institute. New Pak Technical Training Centre Rawalpindi / Islamabad
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