Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. PACKAGE AIR CONDITIONING SYSTEM • Water cooled condenser In this system condenser is cooled by water.Water has to be supplied continuously in these systems to maintain functioning of the air conditioning system. Refrigeration and air-conditioning is the subject which deals with the techniques to control the environments of the living and non-living subjects and thus provide them comforts to enable them to perform better and have longer lives. Explanation: Every air conditioner (also pronounced as AC, A/C or Air Cooler in certain regions of the world) has got a compressor inside it. pressure and temperature etc. | PowerPoint PPT presentation | free to … is a system or machine that performs three major functions by its three separate ducts i.e heating, cooling and ventilation of air, generally used in residential commercial or Industrial buildings. Heat is transferred from a low-temperature region to high-temperature … Learn the basics about Air Conditioning from this detailed presentation. The liquid refrigerant absorbs the latent heat of vaporization, making the air cooler. If you continue browsing the site, you agree to the use of cookies on this website. A difference is made between absolute humidity and relative humidity. Rotary. INTRODUCTION  Air conditioning is the process of altering the properties of air to more favorable conditions.  Air conditioning may be defined as simultaneous control of temperature, humidity, motion of air and purity of air within the enclosed space. How Chilled Water Air Conditioning Works. If you continue browsing the site, you agree to the use of cookies on this website. Air, water or refrigerant are used as media for transferring energy from the air conditioning plant to the conditioned space. In practice other factors must also be taken into account especially cleanliness; odor; velocity & distribution pattern. Air Conditioning Principles and Systems 4th edition by Edward G. Pita. Search Search. Combustion (fire) gives off heat. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. AC Induction Motor. In recent years, DC inverter air conditioner is becoming more popular compared to the conventional air conditioner due to its many advantages. 1. Bestsellers. Heat is a form of energy. If you continue browsing the site, you agree to the use of cookies on this website. There have been four main refrigerants used in air conditioners over the years. For air conditioning the relative humidity is more impor-tant. See our Privacy Policy and User Agreement for details. You can change your ad preferences anytime. | PowerPoint PPT presentation | free to view You don’t have to be an air-conditioning expert to use Spot Coolers, but understanding the basics of air conditioning will help you understand how Spot Coolers work. The static pressure is then the same before each terminal and at each branch. Principles and Concepts. Chapter 01 - Refrigeration Principles.ppt - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. The chiller is the section of the system where an exchange of heat occurred between the water that goes to the building and the evaporator. Saved. Basic Principles of Air Conditioning. en Change Language. What is HVAC -Basic Of Heating ,ventilation and Air Conditioning HVAC Meaning : HVAC stands for Heating Ventilation and Air-Conditioning, is commonly associated with heating and cooling industry. Close suggestions. As the compressor takes the most power in any air conditioning system, the change in the compressor technology has enabled better and more efficient air conditioner or heatpump to be deployed. As with all air conditioning systems the principle remains the same whereby the heat is removed from one area and replaced with chilled dry air and the hot air is expelled, normally to the outside atmosphere. Depending upon the comfort of the human beings and the control of environment for the industrial products and processes, air conditioning can also be classified as comfort air conditioning and industrial air conditioning. 52. It is perceive d by humans. Air conditioner (AC) working principle An air conditioner collects hot air from a given space, processes it within itself with the help of a refrigerant and a bunch of coils and then releases cool air into the same space where the hot air had originally been collected. Chiller. This process also made the air more humid, which can be beneficial in a dry desert climate. Clipping is a handy way to collect important slides you want to go back to later. This section highlights some of the basic principles of air conditioning for those who would benefit from additional knowledge in this area. Sign In Join. There are two laws that are significant to understand the basic refrigeration cycle and air conditioning. This is essentially how all air conditioners work. When this refrigerant is compressed, it becomes quite cold. 2-Static Regain Method The basic principle of the static regain method is to size a duct run so that the increase in static pressure (regain due to reduction in velocity) at each branch or air terminal just offsets the friction loss in the succeeding section of duct. AIR –CONDITIONING. INTRODUCTION  Definition - Air conditioning is the process of altering the properties of air (primarily temperature and humidity) to more favorable conditions. Looks like you’ve clipped this slide to already. You can change your ad preferences anytime. Intensive properties do not depend on the size of the system e.g. The text emphasizes the application of theory to both designing new systems and troubleshooting existing ones. Gases give off heat when changed from gas to liquid. To understand just how an air conditioning system works, we must first understand the nature of heat. Air conditioner working principle In winter air conditioning system, the air is burnt and heated, which is generally followed by humidification. Now customize the name of a clipboard to store your clips. Relative humidity is meas - ured in % of the maximum … The working of window air conditioner can be explained by separately considering the two cycles of air: room air cycle and the hot air cycle. As you can see from this typical example of a air conditioning system, the ambient air is drawn over the condensor that can best described as a ‘radiator’ as seen on motor vehicles but instead of water … Schematic for the system is arranged. This chilled-water is then circulated through the entire building by the use of a pump. In compression chiller, compressors are used to compress the … Clipping is a handy way to collect important slides you want to go back to later. Here, our teams of extremely knowledgeable professionals offer all kinds of installation, maintenance, cleaning and repairing services, making our clients to enjoy the flawless performance of … 1.2 Objectives of the Refrigeration air conditioning. The cooler air is then blown into the passenger compartment. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Scribd is the world's largest social reading and publishing site. Air conditioning   Air conditioning is the science which deals with the supply and maintaining desirable internal atmospheric condition irrespective of external condition. The basic concept behind air conditioning is said to have been applied in ancient Egypt, where reeds were hung in windows and were moistened with trickling water. The compartments of the room and hot air are separated by an insulated partition inside the body of the air conditioner. The meshing of gears, the turning of wheels cause friction which results in heat. Latent heat is important in the operation of an air- conditioning system because the cooling effect is derived from changing the state of liquid refrigerant to vapor. 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