However, first let’s understand air conditioning theory, the basic principle, types of heat, how heat transfers and we’ll discuss how the basic refrigeration cycle diagram works. Chapter 01 - Refrigeration Principles.ppt - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. 1. 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. Basic Concepts of Air Conditioning Prepared exclusively for COACH LEATHERWARE. AIR –CONDITIONING. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Intensive properties do not depend on the size of the system e.g. On completion of this course, students should be able to 1. Snapshots. To understand just how an air conditioning system works, we must first understand the nature of heat. 114 hvac interview questions and answers pdf ebook, Poland : Alternative sources of Energy and Recycling, No public clipboards found for this slide. Chiller. 1.2 Objectives of the Refrigeration air conditioning. Sign In Join.  The control of these conditions may be desirable to maintain the health and comfort of the occupants. 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. A thermal distribution system is required to circulate the media between the conditioned space and the A/C plant. The working principle of air conditioning is Vapor Compression Cycle. Automotive HVAC Market in the Americas 2015-2019 - HVAC is a technology used to provide heating, ventilation, and air conditioning to maintain good air quality and deliver thermal comfort through adequate ventilation inside vehicles. The outside air flows through a damper and mixes with the recirculated air. In a 3-phase AC induction motor, the stator of the … 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. Heat is transferred from a low-temperature region to high-temperature … Air conditioning theory. AC Induction Motor. When you work around the refrigeration system - or any part of the HVAC system - remember these principles: • You are dealing with electricity, heat, pressures, and possibly toxic gases. You can change your ad preferences anytime. INTRODUCTION  Definition - Air conditioning is the process of altering the properties of air (primarily temperature and humidity) to more favorable conditions. | PowerPoint PPT presentation | free to … The water cooled condenser is used as a function to reject the heat that was absorbed by the refrigerant in the evaporator. Compression of refrigerant produces heat. Air conditioning also plays an important role in industry, agriculture and research. There have been four main refrigerants used in air conditioners over the years. One has blades or vanes that rotate … You can change your ad preferences anytime. The text emphasizes the application of theory to both designing new systems and troubleshooting existing ones. Ventilation, Heating, Air-Conditioning, And Commercial Refrigeration Equipment Market Business Growth Strategies 2020 - A recent report published by The Business Research Company on Ventilation, Heating, Air-Conditioning, And Commercial Refrigeration Equipment Market provides in-depth analysis of segments and sub-segments in the global as well as regional. This is essentially how all air conditioners work. For an air conditioning system to operate with economy, the refrigerant must be used repeatedly. This chilled-water is then circulated through the entire building by the use of a pump. The winter air conditioning uses a heat pump (refrigeration system operated in the reverse direction) and a humidifier. Air, water or refrigerant are used as media for transferring energy from the air conditioning plant to the conditioned space. Gases give off heat when changed from gas to liquid. Search Search. See our Privacy Policy and User Agreement for details. Air conditioning is the process whereby the condition of Air, as defined by its temperature and moisture content, is changed. 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. There are different types of air conditioners available in the market, like a reverse cycle air conditioner, ducted air conditioner, split system air conditioner etc., some of it can also work in cold days for the cozy feeling inside the premises. 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. Upload . Title: Subject: Principles of Refrigeration and Air Conditioning Author: Waheed Created Date: 3/19/2009 10:35:37 PM Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The air moving inside the room and the front part of the air conditioner where the cooling coil is located is considered to be the cool air. To know more contact team@octavesim.com The following procedure is used to design a duct system by this method: … First of all understand basic geometry. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.  Air conditioning may be defined as simultaneous control of temperature, humidity, motion of air and purity of air within the enclosed space. 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. See our User Agreement and Privacy Policy. This refrigerant is then sprayed into the heat exchanger using some sort of expansion valve. Now customize the name of a clipboard to store your clips. … If you continue browsing the site, you agree to the use of cookies on this website. The water leaves the chilled water evaporator at 45°F or 7°C. The … Now customize the name of a clipboard to store your clips. Don‘t start or stop equipment, touch tubing, adjust valves, or open lines unless you really know what you are doing. 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. See our Privacy Policy and User Agreement for details. There are two laws that are significant to understand the basic refrigeration cycle and air conditioning. Heat is a form of energy. Schematic for the system is arranged. This can be understand easily from following image. Combustion (fire) gives off heat. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 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. Looks like you’ve clipped this slide to already. Introduction and Basic Concepts of Refrigeration and Air Conditioning: First, let's understand a few things. Air humidity Humid air contains water in a vaporous state. A difference is made between absolute humidity and relative humidity. Absolute humidity is measured in gH 2O / k g dry air. HISTORY In 1902, the first modern electrical air conditioning unit was invented by Willis Carrier in Buffalo, New York. … This section highlights some of the basic principles of air conditioning for those who would benefit from additional knowledge in this area. Liquids absorb heat when changed from liquid to gas . For air conditioning the relative humidity is more impor-tant. The book begins by developing the fundamental principles of air conditioning, followed by a description of equipment and systems. Thermodynamics’ first law explains that energy cannot be neither created nor destroyed, but can be … The meshing of gears, the turning of wheels cause friction which results in heat. You want to go back to later give off heat when changed from gas to liquid evaporator at 45°F 7°C... Works to compress and pump the refrigerant must be used repeatedly … this describes... 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