Basics of Air Conditioning & Heat Load Calculation

This comprehensive HVAC course begins by establishing a solid foundation in the core concepts of air conditioning and refrigeration. Students are introduced to the technologies that are fundamental to controlling and manipulating air temperature and humidity, setting the stage for a deeper exploration of the subject. A pivotal aspect of effective HVAC system design is understanding the critical factors influencing the process. The course delves into these factors, ensuring that students grasp the intricacies of designing systems that meet specific requirements, considering aspects such as energy efficiency, environmental impact, and cost-effectiveness. The properties of air and vapor take center stage in the next phase of the course. Psychrometry, the study of air and its properties, is explored in depth. This includes an examination of psychrometric properties and charts, emphasizing their vital role in designing systems that efficiently regulate temperature and humidity. The course then moves on to dissect the major components of air conditioning and refrigeration systems, providing students with a comprehensive understanding of compressors, evaporators, condensers, expansion devices, and refrigerants. This foundational knowledge sets the stage for advanced studies and practical applications. Psychrometric processes and their application in air conditioning design are explored, with a focus on understanding the major air streams and their roles in achieving optimal comfort and efficiency in indoor environments. The classification of air conditioning systems adds another layer of knowledge, providing insights into various system types and their applications. A comprehensive examination of the vapor compression refrigeration cycle follows, unraveling the processes of compression, condensation, expansion, and evaporation. This phase includes an in-depth exploration of compressors, evaporators, condensers, expansion devices, and refrigerants, offering students a complete understanding of their functions within the broader system. The introduction of alternative refrigeration systems, specifically vapor absorption and thermoelectric refrigeration, broadens the scope of knowledge and prepares students to tackle diverse cooling challenges in the field. Heat Load Calculations, a fundamental aspect of HVAC design, are explored in detail. Students learn to assess various factors, including external and internal heat gains, occupancy, lighting, and climate conditions, to accurately size and design HVAC systems. Real-world samples and case studies are integrated to bridge the gap between theory and practical application. Psychrometry is presented as a science crucial to HVAC design, and the course introduces learners to psychrometric charts, showcasing their practical applications in HVAC systems. The integration of Heat Load Calculations and Psychrometry becomes a specialty of the course, providing students with the skills to control psychrometric data in heat load assessments for optimal system design and efficiency. In conclusion, this comprehensive course empowers students with industry-relevant skills to navigate the intricacies of air conditioning and refrigeration, from core concepts to practical applications in system design, psychrometry, and heat load calculations. It serves as a robust foundation for individuals aiming to excel in the dynamic field of HVAC engineering. Target Learners: 1. Knowledge of Thermodynamics & Heat Transfer 2. Undergraduate students of Mechanical who are in either Vth, VIth, VIIth or VIIIth semester 3. Graduate students of Mechanical 4. Working professionals with B.Tech./B.E., in Mechanical 5. Diploma students of Mechanical

• Fundamentals of Air-conditioning & Refrigeration
• We begin with core concepts of air conditioning and refrigeration, technologies integral to controlling and manipulating air temperature and humidity. This foundational understanding sets the stage for in-depth exploration. Effective system design is the foundation of efficient HVAC systems. This module delves into the critical factors influencing the design process, ensuring that systems are going to meet specific requirements, considering aspects such as energy efficiency, environmental impact, and cost-effectiveness. Understanding the properties of air and vapor is fundamental to HVAC system. Psychrometry, the study of air and its properties, plays a pivotal role. This module explores psychrometric properties and charts, emphasizing their importance in designing systems that regulate temperature and humidity effectively. Next, we dissect the major components that constitute air conditioning and refrigeration systems. Compressors, evaporators, condensers, expansion devices, and refrigerants are examined in detail, providing students with a comprehensive understanding of the internal workings of these systems. Moving forward, we explore psychrometric processes and their application in air conditioning design. Understanding the major air streams and their roles in the design process is crucial for achieving optimal comfort and efficiency in indoor environments. The classification of air conditioning systems adds another layer of knowledge to this module. The module concludes with a comprehensive examination of the vapor compression refrigeration cycle. Students will gain insight into the processes of compression, condensation, expansion, and evaporation, essential components in the refrigeration cycle. A detailed exploration of compressors, evaporators, condensers, expansion devices, and refrigerants further enriches our understanding. These components form the backbone of air conditioning and refrigeration systems, and complete understanding of their functions is essential for effective system design. Finally, we introduce alternative refrigeration systems, namely vapor absorption and thermoelectric refrigeration. Understanding these systems broadens the scope of knowledge and prepares students for addressing diverse cooling challenges.
• Heat load Calculations with samples and Psychrometry - Part 1
• Heat Load Calculations are the basics of HVAC design, determining the amount of heating or cooling required to maintain a comfortable indoor environment. By assessing various factors such as external and internal heat gains, occupancy, lighting, and climate conditions, engineers can accurately size and design HVAC systems. Real-world samples and case studies are integrated into the curriculum, allowing students to apply theoretical knowledge to practical scenarios. This hands-on approach ensures that learners not only understand the principles but can also adeptly navigate the complexities of heat load assessments. Psychrometry is the science of studying the thermodynamic properties of air and vapor mixtures, a fundamental aspect of HVAC design. Understanding psychrometric properties and processes is crucial for analyzing and deploying air conditions to achieve desired comfort levels. This module introduces learners to psychrometric charts, aiding in visualizing the relationships between temperature, humidity, and other air properties. Practical applications of psychrometry in HVAC systems, such as the design of air conditioning and refrigeration processes, are explored. The integration of Heat Load Calculations and Psychrometry is a specialty of this module. Students learn to control psychrometric data in heat load assessments, ensuring that HVAC systems not only meet thermal comfort requirements but also operate with optimal efficiency. The synergy between these concepts enables engineers to design systems that consider both sensible and latent heat, providing a complete approach to indoor climate control. Upon completion of this module, students gain industry-relevant skills to accurately estimate and manage heat loads in diverse settings. Whether designing systems for residential spaces, commercial buildings, or industrial complexes, the knowledge acquired in this module empowers learners to create HVAC solutions that are both effective and energy-efficient. In essence, this module serves as a comprehensive guide, arming learners with the knowledge and skills necessary to navigate the intricate world of Heat Load Calculations and Psychrometry, essential pillars in the design and optimization of HVAC systems.
• Heat load Calculations with samples and Psychrometry - Part 2
• Students can aware of the impact of various internal and external parameters that plays vital role in total heat gain for given space. The design of heating, ventilation, and air conditioning systems, as well as energy estimation for buildings are influenced by outdoor design circumstances as they directly influence the transmission heat gain of a structure. Student will learn to calculate total heat gain for given space using various tables provided in ISHRAE Standard and Carrier Handbook. ISHRAE stand for Indian Society of Heating, Refrigerating and Air Conditioning Engineers. With the help of ISHRAE students can set design condition for indoor/outdoor, select ventilation air standard & heat load standard for area and occupancy. Students can understand basic concept of psychrometric, significance of various air properties, various psychrometric processes and its implementation based on application. Basic concept of psychrometric and psychrometric processes are used to control the temperature, relative humidity, and quality of the room air which basic requirement of any HVAC system. Students will have practice on sample heat load calculation in this module. The importance of accurate load calculations for air conditioning design can never be overemphasised as it affects the selection of equipment. The calculations are performed for peak summer design conditions which normally will contribute to more heat gain into the space than monsoon. In this module students will get an opportunity to learn HVAC total load calculation based on L & T experience on very large project. This will help to calculate total heat load in building