Free online courseRefrigeration and air-conditioning

Course Description

The course titled "Refrigeration and Air-Conditioning" offers a comprehensive exploration into the realm of thermal management systems. With a duration of 17 hours and 58 minutes, this professional course encapsulates a detailed study categorized under refrigeration and air conditioning, focusing on crucial principles and advanced applications pertinent to this field.

This in-depth course begins with a thorough Recapitulation of Thermodynamics, ensuring that students are grounded in the essential concepts that form the backbone of refrigeration systems. Moving forward, the Introduction to Refrigeration sets the stage for more complex topics, providing a clear understanding of the basics and laying the groundwork for intricate cycles and systems discussed later.

The curriculum advances into specific cycles starting with the Air Refrigeration Cycle and its various applications, including a detailed examination of Aircraft Refrigeration Cycles across three segments. These segments dissect the unique requirements and engineering solutions pertinent to aircraft, highlighting the differences and challenges associated with high-altitude and high-speed conditions.

Next, the course delves into the Vapour Compression Cycle, presented in a two-part series. This section is crucial as it discusses the most widely used refrigeration cycle, including the use and interpretation of P-h Charts. The discussion extends to the Actual Vapour Compression Cycles, accounting for real-world deviations from ideal cycles over two sessions.

The exploration continues with Compound Compression with Intercooling and Multiple Evaporator and Cascade Systems, elaborating on more complex refrigeration architectures aimed at improving efficiency and performance. Throughout the course, various techniques and strategies are explained through Problem Solving modules, ensuring practical understanding and application of theoretical knowledge.

The segment on Refrigerants introduces and analyzes different types of refrigerants, emphasizing their properties, applications, and environmental impact across two parts. Following this, three sessions are dedicated to Vapour Absorption Systems, an alternative refrigeration technique significant in both historical context and modern sustainable applications.

In transitioning to the second major part of the course, Introduction to Air-conditioning, the course addresses the fundamental principles and the nuances of air-conditioning systems. Concepts such as the Properties of Moist Air are covered in detail, with practical learning facilitated through the utilization of the Psychrometric Chart.

The Psychrometric Processes are dissected across three sessions, providing a step-by-step understanding of how air properties change under various cooling and heating conditions. Additional elements like Infiltration and Design Conditions highlight practical considerations in creating effective air-conditioning systems.

The course meticulously covers the Cooling Load calculations in a three-part series, examining how to accurately determine the amount of cooling required to maintain desired indoor conditions. This is complemented by sections on the Air Distribution System, ensuring participants understand the dynamics of airflow and distribution within conditioned spaces.

To provide a holistic understanding, the course also integrates aspects of Human Physiology, Thermal Comfort, and Indoor Environmental Health. These topics emphasize the import.