Joshi 1 department of mechanical engineering, walchand college of engineering, sangli 416415, maharashtra, india abstract refrigeration is the process of reducing and maintaining the temperature of a space or material below the. In the transient case the temperature at node 9 is reduced from 30. Vapor compression refrigeration system basic, working, parts of system introduction. Introduction the vapour absorption refrigeration system is one of the method of producing refrigerating effect. Some features of this site may not work without it.
Layout of the r22 vapourcompression refrigeration system. Mathematical modeling is done on the test section of an. Test rig vapour compression and refrigeration cycle study. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Compact heat exchangers, heat transfer coefficient, serrated fins, condenser, vacuum brazing, cfd analysis. The vapour compression refrigeration system is now days used for allpurpose refrigeration. Fault diagnosis and refrigerant leak detection in vapour.
The vapor compression refrigeration cycle is a common method for transferring heat from a low temperature to a high temperature. Vapour absorption refrigeration system authorstream. This case study demonstrates the modeling of a vapour compression refrigeration system using r22 as refrigerant. The vapour compression cycle which is used in vapour compression refrigeration system is nowadays used for all purpose refrigeration. Refrigeration test rig instruction manual objective. Refrigeration test rig,domestic refrigeration test rig. Vapour compression refrigeration system slideshare. The vapour compression refrigeration cycle is based on the following factor. College of engineering and technology, pollachi 642002, india. Navarroesbri 6, have analyzed the performance of a vapour compression refrigeration system.
The set up demonstrates the students about the basic principal of a refrigeration cycle. Trial on vapour compression test rig to find out actual and theoretical. Performance analysis of a refrigeration system using nano. Vapourcompression refrigeration systems sciencedirect. The above figure shows the objectives of refrigerators and heat pumps. Vaporcompression refrigeration is a refrigeration system that uses a circulating liquid refrigerant to absorb and remove heat from a space that needs cooling. It is also used in domestic and commercial refrigerators, largescale warehouses for chilled or frozen storage of foods and meats. All vapor compression systems consist of the following four basic components alongwith the interconnecting piping. To study the analysis of simple vapour compression cycle and explain the types of vapour compression cycle with ts and ph diagram. Schematic of a vapour compression refrigeration cycle is shown in fig. Find here online price details of companies selling vapor compression refrigeration test rig.
In the vapour absorption system the compressor is replaced by an absorber,a pump,a generator,and a pressure reducing valve. The model of testing hermetically sealed reciprocating compressor, aqaw77x thermally protected. The refrigeration lab was conducted to gain a better understanding of the vapourcompression refrigeration cycle, and to compare the ideal cycle with the real cycle. Vapour compression refrigeration test rig free download as word doc. A working fluid often called the refrigerant is pushed through the system and undergoes state changes from liquid to gas and back. Uses heat energy instead of mechanical energy as in vapour compression system. The testrig consists of a hermetic compressor, an air. Design of two stage vapour compression refrigeration.
Vapour compression refrigeration is the primary method to provide mechanical cooling. Vapor compression 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. A compressor which compresses the vaporous working fluid. The test rig is designed for the study of thermodynamics of vapour compression refrigeration cycle by way of demonstration and experimentation. Performance analysis of vapour compression refrigeration system. Memorandum epub ebook grade 11 maths controlled test no 4 september 2016 memorandum file name grade 11 maths controlled test no 4. R290 and r600a offer many desirable characteristics such. The test rig was then operated over a range of conditions and refrigerant charge levels, both above and below the design.
The purpose of a refrigerator is the removal of heat, called the cooling load, from a lowtemperature medium. Project report on vapour compression refrigeration system. Thermal analysis of any refrigeration or airconditioning cycle. Vapor compression refrigeration test rig at best price in. The evaporating temperature is 25 oc and condensing temperature 47 oc. How to build a vapour absorption refrigeration test rig. Multistage vapour compression refrigeration example1 two stage compression system with water intercooler uses r4a as shown in figure1. Performance analysis of vapour compression refrigeration system with r404a, r407c and r410a jyoti soni 1 and r c gupta corresponding author. Pdf the design and construction of a refrigerator as a test rig, in investigating the performance of liquefied petroleum gas lpg, which has.
Both a steadystate and a transient simulation will be considered. Design and construction of a vapour compression refrigeration. Vapour compression free download as powerpoint presentation. In the vapor compression refrigeration system the compr. The vapour compression refrigeration test rig has been designed to enables students to safety study in the cycle in details. It is used for all industrial purposes from a small domestic refrigerator to a big air conditioning plant.
It is used for all industrial purpose from a small domestic refrigerator to a big air conditioning plant. Refrigeration cycle test rig, manufacturer, exporter. System description the layout of the system is shown in figure 1. In vapour compression refrigerating system, the work is supplied by the compressor. Superb technologies offering white and blue mild steel vapor compression refrigeration test rig at rs 45000unit in ambala, haryana. Vapor compression refrigeration test rig indiamart. In this lab dichlorofluoroethane r141b was used as the refrigerant, and the mass flow rate of water coming into the evaporator and the condenser was varied. Window air conditioning cycle test rig water chilling plant evaporative cooler experimental bottle cooler heat pipe demonstrator natural cooling tower forced draught cooling tower waterwater heat pump test rig airwater heat pump test rig cascade refrigeration cycle test rig. Refrigeration test rig consists of a hermetically sealed compressor, aircooled condenser, capillary and an. Abstract the design and construction of a refrigerator as a test rig. To study refrigeration test rig and to study the vapour compression refrigeration cycle aim.
At the start of the transient simulation the boundary conditions are set such that the total mass of refrigerant in the system is kept constant. A vapour compression refrigeration system is an improved type of air refrigeration system in which a suitable working substance, termed as refrigerant, is used. Design and simulation of a vapor compression refrigeration cycle for a micro refrigerator submitted by seyfettin yildiz in partial fulfillment of the requirements for the degree of master of science in mechanical engineering department, middle east technical university by, prof. Vapourcompression units are the most widely used refrigeration systems. The refrigerant vapour is compressed by means of compressor to a pressure at which temperature obtained at the end of compression will be more then atmosphere so that. It has excellent compression facility and works on vapour compression cycle. One of the common refrigeration systems in use today is the vapor compression cycle. The vapor compression refrigeration cycle, step by step. Volume 2, issue 9, march 20 88 and air conditioning applications, whereas that with a single tube is suitable in the freezing applications. On this page you can read or download download refrigeration table in pdf format. To study works principle of steam jet refrigeration system. Refrigeration cycle and a conventional refrigeration cycle 2. Vapour compression refrigeration test rig consolidated.
While some people have viewed this method as environmentally harmful and inefficient, the cycle is still applicable in the industrial sphere. The refrigeration capacity is 8 tr and the compression is. In order to keep pace with requirements of our clients, we are offering vapour compression refrigeration test rig to them. These are the evaporator, condenser, compressor and the. Heat transfer coefficient for condensation of refrigerant r4a in compact heat exchangers with serrated fin is estimated using measured experimental data. The presentation will give you idea about the vapor compression refrigeration system. If you continue browsing the site, you agree to the use of cookies on this website. The latent heat of vaporization of the refrigerant is used to transfer large amounts of heat energy. An experiment on vapour compression refrigeration test rig has been conducted to calculate the refrigeration effect and coefficient of performance of the test rig to determine the potential places to enhance the refrigeration effect. If you want to know how refrigeration system works you can get it in brief here. Refrigeration cycles the vapor compression refrigeration cycle is a common method for transferring heat from a low temperature to a high temperature. Like share comment subscribe hey guys, i built this as my final year engineering project the refrigerant i used was librwater solution in the concentration of 55% libr and 45% water. The test rig for conducting a performance test is newly developed as per the refrigeration test rig standards. 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 used method for airconditioning of buildings and automobiles.
Design of two stage vapour compression refrigeration system with water intercooler 1pravin d. Refrigeration vcr system with different refrigerants. Flownex network of the vapour compression refrigeration system. Classification of refrigeration system types of refrigeration. Get info of suppliers, manufacturers, exporters, traders of vapor compression refrigeration test. Description of testing facifity and testing euqipments. One of the most important parts of any refrigeration cycle is the compression of the refrigerant since all the further operations depend on it. Heat pump, refrigerator, vapour compression refrigeration cycle. The experimental refrigeration test rig consist of a compressor unit, condenser, evaporator, cooling chamber, controlling devices and measuring instruments those are fitted on a stand and a control panel. Vapour compression refrigeration systems free download as powerpoint presentation.
Working principle of refrigeration and air conditioning pdf. Performance prediction of a vapor compression refrigeration system with fuzzy modeling. Interactive computer routines have been composed, in basic language, in order to permit the prediction of the performances of simple, multievaporator multistage compressor vapourcompression refrigerators when employing refrigerant r11, r12, r22 or r502. Pdf design and construction of a vapour compression. This lab manual provides a platform to the students for understanding the pressure test, leak detection and charging. The cop, power, refrigeration flow rate, etc of the cycle.
The experimental refrigeration cycle test rig consist of a compressor unit, condenser, evaporator, cooling chamber, controlling devices and measuring instruments those are fitted on a stand and a control panel. Out of all refrigeration system, the vapour compression system is the most important system from the view. Room air conditioner is based on vapour compression cycle. To study various controls used in refrigeration and airconditioning system. Refrigeration test rig gas compressor refrigeration scribd. Studies on vapour compression refrigeration testrig. In the present work an experimental setup is built up to test vapour compression. Vapour compression refrigeration test rig labbazaar. Refrigeration test rig consists of compressor rotary, air cooler condenser. The various components and thermo dynamic cycle involved in the test rig. In any refrigeration process, heat is transferred from one region to another with the aid of an external agent. Project report on vapour compression refrigeration system source.
This is a core subject to study and understand the basic concepts to select proper refrigeration cycle and design air conditioning system. Scribd is the worlds largest social reading and publishing site. To calculate coefficient of performance and draw ph diagram. Koshy mathews2 1 department of mechanical engineering, p. It is basically used for study of thermodynamics of vapour compression. It should be noted that heat pump and refrigeration cycles are the same, but in the. Design and construction of a vapour compression refrigeration system as test rig to investigate the performance of liquefied petroleum gas lpg as refrigerant article pdf available august. A performance comparison of vapour compression refrigeration system using eco friendly refrigerants of low global warming potential a.
69 620 1451 334 1142 933 662 563 105 115 441 417 526 1245 1087 543 1184 1167 377 302 416 769 770 764 749 1295 710 775 576 439 1369 689