The vapour absorption refrigeration system is one of the oldest method of producing refrigerating effect. The course is designed to give fundamental knowledge of types of refrigeration, refrigeration cycles, refrigerants and behavior under various conditions, different air. The principle of vapour absorption was first discovered by michael faraday in 1824 while performing a set of experiments to liquefy certain gases. Ignoring above requirement will result in system fault, shorten life span and void the warranty. Know later, that refrigeration is an integral component of airconditioning. The principle of vapour absorption was first discovered by michael faraday in 1824 while performing a. A refrigeration system is a combination of components and equipment connected in a sequential order to produce the refrigeration effect. A company called electrolux is selling these types of refrigerators. This effect is commonly used in camping and portable coolers and for cooling electronic components and small instruments.
A three fluid system employs a refrigerant, a solvent and an inert gas, and eliminate the aqua. Part 1 fundamentals of refrigeration part 2 refrigeration system components part 3 the refrigeration load part 4. Akshay mistri, rahul kumar tarun sharma, zubin rizwan section. Although each separate part covers a specific area of refrigeration theory and practice, each successive publication presumes a basic understanding of the material presented in the previous sections.
Refrigeration system selection question that was asked. Shows a schematic diagram of an electrolux refrigerator it is a domestic refrigerator. An introduction thermoelectric cooling uses the peltier effect to create a heat flux between the junctions of two different types of materials. The most common refrigeration system in use today involves the input of work from a compressor and uses the vapor compression cycle. Which is basically a large heat exchanger, by rejecting heat to a cooling. It is based on the second law of thermodynamics that the heat can made to flow from cold body to a hot body with the help of external source. This clinic will also discuss many of the common accessories used in a comfortcooling refrigeration system. In electrolux refrigeration system nh3 gas coming out from the boiler is passed through the rectifier or water separator and then to the condenser. The cascade refrigeration system is a freezing system that uses two kinds of refrigerants having different boiling points, which run through their own independent freezing cycle and are joined by a heat. Mechanical engineering refrigeration and air conditioning nptel. Unit 3 refrigeration equipment refrigeration equipment. The 6 main components of a refrigeration system bartlett. An example of this refrigerator is the electrolux, a kitchen refrigerator which was manufactured by servel, inc. Electrolux refrigeration service manual pdf download.
Nptel provides elearning through online web and video courses various streams. Refrigeration and airconditioning is the subject which deals with the. The refrigeration system comprises of various components like freon gas, compressor, condenser, evaporator, thermostat etc, which are all enclosed in a casing. Now i love to hear from you, in this guide of vcc, i showed allimportant point regarding vcc. The danfoss product range for the refrigeration and air. Properties of ideal refrigerantabsorbent combination advantages of absorption system over compression system domestic electrolux. If you continue browsing the site, you agree to the use of cookies on this website. You can also checkout vapour compression refrigeration system and electrolux refrigeration system written by me. Vapour absorption refrigeration system authorstream. Download ebooks for free from engineering study material site. A refrigerator compressor is the center of the refrigeration cycle. Vapour absorption refrigeration systems slideshare. Click on any course shown below to view the lecture videos list and syllabus of that course. Refrigeration and airconditioning is the subject which deals with the techniques to control the environments of the living and nonliving subjects and thus provide them comforts to enable them to perform better and have longer lives.
Since the boiling point temperature difference between. The compressor also draws vapor away from the evaporator to maintain a lower pressure and lower temperature before sending it to the condenser. The partial vacuum in the vessel causes some of the. Uses heat energy instead of mechanical energy as in vapour compression system. We would like to get a consultants perspective on the entire refrigeration system and design process. Electrolux refrigeration threefluid refrigeration system. Thermostatic expansion valve txv before the evaporator, this is located at the end of the liquid line. Arora from iit kharagpur made available by nptel elearning initiative.
Refrigeration and air conditioning notes free download as word doc. Refrigeration fundamentals heatcraft worldwide refrigeration. Three fluid refrigeration is an system which does not needs any mechanical work or. A presentation on vapour absorption refrigeration system. Unep 2 there are several heat transfer loops in a refrigeration system as shown in figure 2. The most popular type of refrigerator which employs vapor absorption system is the electrolux refrigerator. For a number of countries the implementation of the sisystem is still an ongoing process. The major components of a vaporcompression refrigeration system include the compressor, condenser, expansion device, and evaporator.
Refrigeration and airconditioning nptel online videos. Refrigerator electrolux end 32321 x user manual 76 pages. To study the vapour absorption domestic electrolux refrigerator system. Erc3214aow integrated refrigerator store food in whichever area of the fridge you choose. Electrolux refrigeration system overview with diagram.
Electrolux this article presents a brief explanation of how an absorptioncycle refrigerator functions. Refrigeration and air conditioning energy eff iciency guide for industry in a sia. View and download electrolux refrigeration service manual online. As mentioned earlier, in this system ammonia is used as refrigerant and water is used as absorbent. It works as a pump to control the circulation of the refrigerant, and it adds pressure to the refrigerant, heating it up. Vapour absorption refrigeration systems submitted to. In this article we will discuss about electrolux refrigeration. In the ammoniawater absorption refrigeration system, ammonia works as the refrigerant and water works as the absorbent.
In the vapour absorption system the compressor is replaced by an absorber,a pump,a generator,and a pressure reducing valve. Lecture 14 vapour absorption refrigeration systems youtube. Click on any video lecture link to view and download that video. On completion of this course, students should be able to 1. Steam and vapor jet refrigeration systems section 1. Browse and download air conditioning and refrigeration books of various titles, written by many authors and published by a number of publications for free in pdf format.
Mechanical engineering channel anuniverse 22 has started to stand on the shoulders of engineering giants and now, it is a place to hang out to learn the basics of mechanical engineering. Mechanical engineering channel anuniverse 22 has started to stand on the shoulders of engineering giants and now, it is a place. Describe various air cycle refrigeration systems section 9. Domestic electrolux refrigeration system three fluid vapour absorption system anuniverse 22 duration. Air conditioning and refrigeration books free download. When ammonia leaves the generator in the vaporized state some particles of water vapor are also carried with it, and these are removed in the analyzer and the rectifier. Vapour absorption refrigeration systems linkedin slideshare. Txv is a device that controls the amount of refrigerant that flows to the evaporator. If you as the refrigeration engineer had no criteria, constraints, direction, etc. Refrigeration fundamentals 2175 west park place blvd. Mechanical refrigeration and airconditioning youtube. This is used in the lowpressure side of the system. Air conditioning clinic refrigeration system components. The different stages in the refrigeration cycle are.
By adding a third fluid pump is removed, completely eliminating all moving parts. However, unlike vapour compression refrigeration systems, the required input to absorption systems is in the form of heat. Electrolux refrigerators feature a range of product options such as luxurydesign glass shelves and perfect set temperature controls, electrolux refrigeration and freezer products make it easy to store and organize your favorite foods and beverages. Refrigerator electrolux refrigerator installation manual 3 pages. Since refrigeration deals entirely with the removal or transfer of heat, it is important that you have a clear understanding of the. Vapour absorption refrigeration systems based on waterlithium bromide pair. Ramgopal department of mechanical engineering iit kharagpur. Steam is passed through a vacuum ejector of high efficiency to exhaust a separate, closed vessel which forms part of a cooling water circuit. Nptel mechanical engineering refrigeration and air. The latter three will be discussed in this clinicthe compressor is discussed in a separate clinic. Cylinder and piston mechanism and pv diagram of a reciprocating compressor where d is the bore or diameter and l is the stroke, i. Mechanical refrigeration works by changing the the majority of heat is removed from the the majority of the works by removedchanging the absorbed heat is state of the refrigerant.
Domestic electrolux refrigeration system three fluid vapour. The most commonly used refrigeration machines are the household refrigerator and deep freezer. Electrolux refrigeration or three fluid refrigeration systemlec3u3rac duration. The water is used as a solvent because it has the ability to absorb ammonia readily. Introduction the vapour absorption refrigeration system is one of the method of producing refrigerating effect. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
Based on the results with this prototype, two new prototypes were developed, where the adsorber wall thickness was reduced. The components like absorber, and generator perform the regular functions. At us appliance get electrolux refrigerators for the best price and take advantage of free nationwide shipping this month. Product information refrigeration cascade refrigeration system ammoniaalcohol refrigeration system. The liquid of refrigerant gravitates to ushape trap filled with liquid nh3 to prevent the entry of h2 to the condenser and then enters the evaporator. Vapour absorption refrigeration system learn mechanical. When switch is turned on, power is provided to the temperature control, compressor.
Iit kharagpur nptel courses video courses and lectures. Twofluid absorption cooling system unable to replace a compressor, which requires a large amount of work shaft pump liquid with insignificant energy demand compared to the refrigeration effect. There you will find the floodback that is essential to maximise the productivity of the evaporator, while. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. Both power generation and refrigeration are usually accomplished by a system that. Electrolux refrigeration is also called as threefluid refrigeration, the name is followed by three fluids called ammonia, water, and hydrogen which is mainly used in this process. About electrolux refrigeration, three fluid refrigeration system.