In simple vapour compression refrigeration system pressure ration up to specific limit can be achieved. Introduction a single stage vapour compression refrigeration system has one low side pressure evaporator pressure and one high side pressure condenser pressure. Cycle analysis with liquidsuction subcooler basically there are three methods of subcooling in vapor. In the vaporcompression refrigeration system, which is widely used, the external. Vapour compression refrigeration systems free download as powerpoint presentation. The vapour in this cycle is circulated through the various components of the system, where it undergoes a number of changes in its state or condition. Vapor compression refrigeration transports large quantities of heat with a small mass of circulating fluid. So refrigeration cycle should be known to understand the refrigeration system. In the ideal refrigeration cycle, the refrigerant leaves the evaporator as wet vapour. Design a vaporcompression refrigeration system that. Vapor compression cooling for high performance applications. Vapour compression refrigeration cycle the vapor compression refrigeration cycle is nearly 200 years old, but it does not seem ready to leave the scene any time soon.
Cycle analysis with liquidsuction subcooler basically there are three methods of subcooling in vapor compression refrigeration system, i. One ton of refrigeration means amount of heat required to remove from one short ton of water at 00c to produce ice at 00c at 24 hours. Refrigeration cycle is the basis of all refrigeration systems. Vapor compression systems can reject heat far from the source by separating the evaporator and condenser in a socalled split system. Introduction principle of operation working fluid for vapor absorption refrigeration system vars some experimental results for different fluid various designs of vars cost analysis conclusions 2. Simple vapour compression refrigeration system slideshare. These all four components run a simple vapour compression refrigeration system. Multistage vapour compression refrigeration systems departmen of mechanical engineerin lecture17 multistage vapour compression refrigeration systems 1. Example of how the cop of a watertowater heat pump varies with the distributionreturn temperature.
Winner of the standing ovation award for best powerpoint templates from presentations magazine. Both a steadystate and a transient simulation will be considered. This case study demonstrates the modeling of a vapour compression refrigeration system using r22 as refrigerant. Ppt refrigeration cycles powerpoint presentation free to download id. Simple vapour compression refrigeration system consists of mainly four parts compressor, condenser, expansion valve and evaporator. In a refrigeration system, the rate at which the heat is absorbed in a cycle from the. Jul 22, 2016 vapour compression refrigeration system bobin saji george.
Download vapor absorption refrigeration system presentation transcript. Vapour compression refrigeration systems ppt video online. Apparatus figure 1 shows the experimental setup in details. Modern refrigeration and airconditioning equipment is dominated by vapour compression refrigeration technology built upon. Vapour compression refrigeration or vapor compression refrigeration system vcrs, in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for airconditioning of buildings and automobiles. It can be used whenever a refrigeration or airconditioning requirement occurs. The vapour compression cycle is used in most of the modern refrigeration systems in large industrial plants. Ppt vapour compression cycle powerpoint presentation free. Layout of the r22 vapour compression refrigeration system. Ueeneej103a establish the basic operating conditions of.
There are innumerable applications of such systems and they are the major consumer of electricity around the world. Raja kumar gond1, ravindra pratap chaudhary2, mohammad amir khan 3, gaurav jain4. Design and simulation of a vapor compression refrigeration cycle for a micro refrigerator submitted by seyfettin yildiz in partial fulfillment of the. Classification of refrigeration system types of refrigeration. The exergetic balance equation for a control volume is. We want to design a vapor compression refrigeration cycle to absorb heat from a cool environment and reject it to a warm environment. Vapor compression refrigeration system basic, working.
Absorption of refrigerant vapour by a suitable absorbent or adsorbent, forming a strong or rich solution of the refrigerant in the absorbent adsorbent. Exergy flow destroyed in each of the components is evaluated as follows 3, 9. The ph diagram of the vapor compression refrigeration cycle is presented in figure 2. Any type of vapour compression refrigeration system has. In some cases the refrigerant leaves the evaporator as either saturated vapour or superheated vapour. The system i should design must be able to handle the followings. There are no appreciable pressure drops as the refrigerant flows through the condenser and evaporator.
Vapor compression refrigeration cycle ppt xpowerpoint. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. The first working vaporcompression refrigeration system was built in 1834 by another american who was living in the uk, jacob jenkins. Exergy analysis of vapour compression refrigeration system. Lecture18 vapour absorption refrigeration system the vapour absorption refrigeration system consists of. A block diagram of a vapour compression refrigeration system is shown in fig. View and download powerpoint presentations on vapor compression refrigeration cycle ppt. How vaporcompression cooling works electronics cooling. Find powerpoint presentations and slides using the power of, find free presentations research about vapor compression refrigeration cycle ppt.
Hello friends in this video i will tell you about vapour compression refrigeration system in hindi vcrs, its components and working of. How can i design a vapor compression refrigeration cycle. Gandhinagar institute of technology subject applied thermal and hydraulic engineering2140907 branch electrical topic refrigeration. In this lesson, one will learn how to solve the problems on vapour compression cycle. In this paper, performance of the fabricated system is. Thermoacoustic refrigeration seminar report pdf, ppt. Mechanism of simple vapor compression refrigeration system. Cycle diagram of vapour compressor refrigeration is illustrated in fig. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. Ppt vapour compression cycle powerpoint presentation. Ppt refrigeration refrigeration refrigerator free 30.
While the employment of natural refrigerants continues to this day, the development of mechanical refrigeration had to await progress in the physical sciences. For a decade, due to the tendency of miniaturization in technology, an effort to produce this. Development of the vapour compression system in mid 19th century. There occurs pressure losses on both evaporator and condenser side. In this way all these processes go on continuously and as long as the compressor runs, the system produces cooling around the evaporator.
Unit 5 refrigeration systems refrigeration systems structure 5. For purposes of illustration, we will assume that a refrigeration system used to cool air for an office environment. Some basic refrigeration cycles are discussed here through. Vapour compression refrigeration systems presentation transcript. Absorption of refrigerant vapour by a suitable absorbent or adsorbent. The design is to be based upon the ideal vapor compression refrigeration cycle, with four components.
What are the advantages of vapour compression refrigeration. Vaporcompression refrigeration, in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for airconditioning of buildings and automobiles. Download scientific diagram ph diagram of vapor compression refrigeration cycle. Vapour compression refrigeration cycle video lectures. Technology and applications evaporation technology using mechanical vapour recompression engineering for a better world. Ppt refrigeration cycles powerpoint presentation free. Vapour compression cycle energy management handbook sixth edition, chapter 8 refrigerator air conditioning plant heat pump refrigerator electricmotordriven. Other systems employed are gas refrigeration, vapor absorption refrigeration, and vortex refrigeration. Refrigeration systems vapour compression refrigeration system vapour absorption refrigeration system thermo electric refrigeration system vapour compression refrigeration this is the most important. Apr 02, 2016 vapour compression refrigeration system 1. Vapor compression refrigeration system basic, working, parts of system, advantages, and disadvantages introduction. Ppt refrigeration systems powerpoint presentation free.
Some basic refrigeration cycles are discussed here through different diagrams. Liquidsuction subcooler is using a heat exchanger, the heat. The system is designed and tested for various operating. These all four components run a simple vapour compression. The coefficient of performance of a refrigeration system is. If you want to know how refrigeration system works you can get it in brief here. Purpose of refrigeration examples and applications choice of coolant and refrigerants phase diagram of water and co 2 vapor compression refrigeration system pressureenthalpy diagram for refrigerants refrigerator, air conditioner, thermoelectric cooler, heat pump designation, choice, criteria for selection, and. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. Vapour compression units are the most widely used refrigeration systems. Experimental analysis of a vapour compression refrigeration system. Interactive computer routines have been composed, in basic language, in order to permit the prediction of the performances of. Vapourcompression refrigeration or vaporcompression refrigeration system vcrs, in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely. Revision of carnot refrigeration cycle by using dry compression. Apr 23, 2020 in any refrigeration process, heat is transferred from one region to another with the aid of an external agent.
Interactive computer routines have been composed, in basic language, in order to permit the prediction of the performances of simple, multievaporator multistage compressor vapour compression refrigerators when employing refrigerant r11, r12, r22 or r502. Ph diagram of vapor compression refrigeration cycle generally, the. Fig 2 shows system representations on ph chart for ideal and actual vapour compression refrigeration cycle. The cycle depicted in figure 1 offers several advantages for electronic cooling applications. Key components in the refrigeration system are a compressor, a condenser, an evaporator and an expansion valve. Develop and analyze thermodynamic models of vaporcompression systems and their modifications, including. Performance and exergy analysis of vapour compression refrigeration system using various alternative of r4a. Technology and applications gea engineering for a better. Vapourcompression refrigeration or vaporcompression refrigeration system vcrs, in which the refrigerant undergoes phase changes, is one of the many. Releases of r22 is a greenhouse gas contribute to ozone depletion. Although the initial cost of an absorption system is higher than that of a compression system, operational costs are much lower if waste heat is used. While the employment of natural refrigerants continues to this day, the development of mechanical refrigeration had to await progress. Gas refrigeration cycle a schematic diagram b ts diagram. Vapor compression refrigeration system pressureenthalpy diagram for refrigerants refrigerator, air conditioner, thermoelectric cooler, heat pump designation, choice, criteria for selection, and.
System description the layout of the system is shown in figure 1. Design of two stage vapour compression refrigeration. Seminar presentation on vapour compression refrigeration. Hello friends in this video i will tell you about vapour compression refrigeration system in hindi vcrs, its components and working of vapour. Vapor compression refrigeration system on ph diagram.
Pumping of the rich solution and raising its pressure to the pressure of the condenser. Download this books into available format unlimited. Thus, experimental readings are taken on refrigeration tutor for actual cycle considering pressure losses and observations are tabulated as shown below in table 2. As energy crisis is big problem in the world there is a need of decreasing power consumption of electricity. Feb 10, 2017 the presentation will give you idea about the vapor compression refrigeration system.
It is also used in domestic and commercial refrigerators, largescale warehouses for. Calc vapor compression refrigeration cycle r4a duration. First, evaporation is simply the process of vaporization. Unit of refrigeration the unit of refrigeration is ton of refrigeration or simply ton denoted by tr. Here harshit solves some sample questions which will help one to recollect and remember all the topics and equations. For the given vaporcompression refrigeration system with refrigerant4a as the working fluid, the pressure, temperature, specific enthalpy, and specific entropy at the state are, and respectively.
The system is designed and tested for various operating conditions using hot water as heat source. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. This blog post will explain how this vaporcompression. Ts diagram for a vapour compression refrigeration cycle when the refrigerant leaves the evaporator as a saturated vapour b superheated vapour. Vocabulary background in the thermodynamics and refrigeration literature, several words are used interchangeably that can cause confusion. Performance and exergy analysis of vapour compression.
Based on the working principle, refrigeration systems can be classified as vapour compression systems, vapour absorption systems, gas cycle systems etc. Design of two stage vapour compression refrigeration system. The vapor compression refrigeration cycle is a common method for. One of the most important parts of any refrigeration cycle is the compression of the refrigerant since all the further operations depend on it. Vapour compression refrigeration system bobin saji george. Since jacob perkins ice machine built in 1834, vapor compression refrigeration cycle vcrc has been in service of human beings. International journal of students research in technology. Gandhinagar institute of technology subject applied thermal and hydraulic engineering2140907 branch electrical topic refrigeration vapour compression refrigeration system 2. Conclusion vapour refrigeration system requires large amount of energyto operate. Vapourcompression units are the most widely used refrigeration systems. Vapourcompression refrigeration systems sciencedirect. Figure 2proposed vapour compression refrigeration system using matrix heat exchanger v. Vapor compression refrigeration cycle objective determining the coefficient of performance of a vapour compression refrigeration cycle. One ton of refrigeration means amount of heat required to remove from one short ton.
Dec 03, 2016 vapour compression refrigeration system in hindi. Uses heat energy instead of mechanical energy as in vapour. Introduction the vapour absorption refrigeration system is one of the method of producing refrigerating effect. Jan 08, 2017 1 method of compression of the refrigerant. Intro refrigeration cycle, vapor compression duration. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Exw the exergy loss for the each component of cycle is given by. Thank you very much for your quick response to my questions. Use saturated refrigerant4a temperature table, to find, and of refrigerant4a at. It is also used in domestic and commercial refrigerators, largescale.
I understand what you want to do if you use the minimum temperature difference in the condenser to design a refrigeration system. The refrigeration system is an enclosed gas tight system of tubes and equipments as shown below. Vapour absorption refrigeration system authorstream. In the vapor compression refrigeration system, which is widely used, the external agent is a compressor. The vapour absorption refrigeration system consists of. Vapor compression systems can reject heat far from the source by separating the evaporator and condenser. Ppt vapour compression cycle powerpoint presentation, free. The vapor compression refrigeration cycle consists of four processes. Uses heat energy instead of mechanical energy as in vapour compression system. Download this books into available format 2019 update. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant. Ppt refrigeration cycles powerpoint presentation free to. If you continue browsing the site, you agree to the use of cookies on this website. The ordinary household refrigerator is a good example of the application of this cycle.
Here harshit solves some sample questions which will help one to recollect and remember all the topics and equations which were discussed in the previous lesson. In any refrigeration process, heat is transferred from one region to another with the aid of an external agent. In the vapour absorption system the compressor is replaced by an absorber,a pump,a generator,and a pressure reducing valve. The presentation will give you idea about the vapor compression refrigeration system.
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