A study on effect of alternative refrigerant on the. The domestic refrigerator consists of an evaporator, wire mesh aircooled condenser and hermetically sealed reciprocating compressor. There are only few studies reported in the literature on the study of. Among the smallest is a 4 l peltier refrigerator advertised as being able to hold 6 cans of beer. Study and fabrication of thermoelectric air cooling and. In one study on these types of refrigerators 22, a variation of about 5c. All temperature and pressure data were recorded manually in steadystate operation. Smart refrigerator using internet of things prapulla s b dept. You will know details about the principal parts of any domestic refrigerator, namely evaporator, compressor, condenser and capillary tube. Pdf experimental study of performance evaluation of. Thanuja t c vlsi design and embedded systems, vtu, belgaum abstractintelligent appliances with multimedia capability have been emerging into our daily life. He proposes a method to store the excess cooling capacity in a phase change material. In many developing countries like india, most of the vapor compression based refrigeration, air conditioning and heat pump systems continue to run on halogenated refrigerants due to its excellent thermodynamic and thermophysical properties apart. Study of behavior of refrigerant mixtures in domestic.
This article describes the important parts of a refrigerator and also their working. As indicated in table 1, refrigerator operating temperatures ranged from 0. Heat transfer enhancement in domestic refrigerator using r600amineral oilnanoal 2 o 3 as working fluid 1,r. Mixed method insights into impact and support needs research report led by dr rae kaspiew and published by anrows. Investigation of defrost system in domestic refrigerator by using refrigerant deepak dixit, dr. Study the effect of variable condenser length on the performance of domestic refrigerator roshan s. Patil5 1,2,3,4be student mechanical, snjbs kbj coe chadnwad, maharashtra, india 5 prof. Pdf performance study of a domestic refrigerator powered by. The heat of the air, of the lining of the refrigerator, and of the food to be preserved is transferred to a colder substance, called the refrigerant. In many ways, the refrigerator works in a similar manner to how a home air conditioning unit works. Performance enhancement of domestic refrigerators with thermal storage was proposed by marques et al.
Pdf a small refrigerator, 110 w operated by photo voltaic generator was used for this study. The 165 liters domestic refrigerator of tropical class originally designed to work with hfc4a was taken for this study. Study of household domestic refrigerator description. The vcr system was initially designed to operate with r4a. This is the first study to estimate the numbers of children who are exposed to domestic violence globally. An experimental performance study on a vcr system with lpg as refrigerant was conducted and compared with r4a. Pdf experimental study of a domestic refrigerator with.
A large domestic refrigerator stands as tall as a person and may. Household refrigerators and freezers are intended for keeping small volumes of many different foods and drinks simultaneously at low temperatures, as can be found in any household. In this particular configuration, cold side of the module is inside the cooler compartment of refrigerator and hot side is exposed to atmosphere. Study of domestic refrigerator temperature and analysis of. The small energy supply is by means of a heater which may be electric or gas. In this work aircooled conventional condenser is replaced by another heat. Shows a schematic diagram of an electrolux refrigerator it is a domestic refrigerator and is the best known absorption type of refrigerator. Fortythree domestic refrigerators in consumer home kitchens were included in the study. Presents results of a study collecting data on children exposed to domestic violence across an entire municipality for 1 year. The domestic refrigerator is one found in almost all homes for storing food, vegetables, fruits, beverages, and much more. Basic cryogenic processes joulethomoson process, brayton process as well as claude process are described and compared. Study is performed by considering domestic refrigerator and its working conditions. Typically the thermodynamic system in a refrigerator analysis will be a working fluid, a refrigerant, that circulates around a loop, as shown in figure 3.
Investigation of defrost system in domestic refrigerator. The main objective in this study was to obtain performance of the refrigeration system in term of coefficient of performance cop by determining three important. Comparative study of domestic refrigerator by using parallel coil and. This chapter gives an overview of the principles of low temperature refrigeration and the thermodynamics behind it. This work investigates the result of an experimental study carried out to determine the coefficient of performance of domestic refrigerator when a propanebutane mixture is liquefied petroleum gas lpg which is available and comprises 56. A normalization method proposed by international energy agency was used as bench mark to compare indias programmes with other countries in this connection. This article explains the construction and working of a domestic home refrigerator.
In refrigerators compressor consume more power than any other device. Haiers survival strategy to compete with world giants. How does a domestic refrigerator work india study channel. In this paper, a detailed study of hydrocarbon refrigerants r4a and r161 is performed. A vapour compression cycle is used in most household refrigerators, refrigeratorfreezers and. In this study performance analysis of the domestic refrigerator carried out by using. Study the effect of variable condenser length on the. Many studies are being carried out which are concentrating on the application of environmentally friendly refrigerants in refrigeration systems. Pdf household refrigerators and freezers researchgate.
The internal energy and temperature of the refrigerant is alternately raised and lowered by the devices in the loop. Performance analysis of domestic refrigerator with forced imedpub. Isobutane r600a is a refrigerant that is well suited for household applications, with good energy. Our aim is have refrigerator and heating oven side by side without spending additional energy. Study and fabrication of thermoelectric air cooling and heating system. Jawaharlal nehru college of engineering department of mechanical engineering refrigeration and air conditioning lab manual following are the experiments include in the syllabus of refrigeration and air conditioning. Haiers survival strategy to compete with world giants abstract. Pdf household refrigerators and freezers are intended for keeping. No modification has been made by me in the basic design of any component or capillary length of refrigerator.
Energy conservation in domestic refrigerators by cooling. The refrigerator s main function is to use electricity to cool food to approximately 4 deg c. Pdf experimental study of a domestic refrigerator with poeal2o3. This work presents an study on the application of hfc4a to replace r600a in a domestic refrigerator. Study of domestic refrigerator temperature and analysis of factors affecting temperature. This paper focuses on using a case study methodology to analyze haiers survival strategy to compete with world giants. In this study i used liquefied petroleum gas lpg as refrigerant in domestic refrigerator of 165 liter, basically designed for r4a as refrigerant. The age of domestic refrigerators in kitchens ranged from 4 months up to 30 years, the majority 70% of refrigerators were freestanding nonintegrated. A case study of the impacts of domestic and family violence on women and their children this case study is drawn from one of the interview participants in the domestic and family violence and parenting. Other names for special types of refrigerators are freezers, chillers, cryocoolers, as well as the informal word fridge. Pdf this paper presents the performance of a minibar domestic refrigerator operating with and without nanoparticles of alumina oxide, al2o 3. Perspectives on consumer habits with domestic refrigerators and its consequences for energy consumption. Lagrange, in 46761 2194632191 technical services department 509 s. Experimental study of a domestic refrigeratorfreezer.
This project is devoted to feasibility study of substitution of lpg 60% propane and 40 % commercial butane as refrigerant instead of r4a in a domestic refrigerator. Manual refrigerator diagnostic service manual the dometic corporation corporate office warranty department 2320 industrial parkway elkhart, in 46515 2192955228 205 e. Mechanical, snjbs kbj coe chanwad, maharashtra, india. The mixture after the theoretical study at specified temperature range in a domestic refrigerator is proposed as an alternative refrigerant to r4a. Study of performance of binary mixture of r4a and r161. The household refrigerator works on vapour compression refrigeration cycle. One hundred and fortythree domestic refrigerators were surveyed, but due to various technical problems, only 119 sets of recorded temperatures were exploitable.
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 at this high temperature it will reject heat. The aim of this paper is to analyze the internationalization of chinese companies. Experimental study of a domestic refrigerator with poeal2o3 nanolubricant article pdf available in international journal of automotive and mechanical engineering 111. Behind closed doors the impact of domestic violence on. Performance analysis of a domestic refrigerator 584 are three main parameter that were considered in this study. The main component of a refrigerator is its compressor using up to 80% of power.
The studies are made on a twodoor upright freezer with a volume of 435 liters, and which has an automatic defrost feature. Superefficient refrigerator final report mecheng 589. A domestic refrigerator works on vapor compression refrigeration cycle. Heat transfer enhancement in domestic refrigerator using. The global household refrigerators and freezers market size was estimated at usd 72. I first of all tested the coefficient of performance, by charging 90g r. Domestic refrigerators and freezers for food storage are made in a range of sizes. In this study use advanced condenser design to improve condensation of refrigerant and. Arakerimath department of mechanical engineering, ghrcem engineering college, wagholi, pune, india abstract efficient energy and its conservation is a great challenge for engineers. The refrigerant r600a has been used in the past in refrigerators up to the 1940s, and has today a wide range of uses in domestic refrigerators and freezers again in europe where most refrigerators are manufactured using r600a as refrigerant. The temperatures of the surveyed refrigerators were. Experimental study of a domestic refrigerator with poeal 2 o 3 nanolubricant 2246 of the thermocouple reader is shown in table 2. In addition to the pioneering studies by burstein 1960, 1961, both dhrymes 1971 and triplett and mcdonald 1977 have published hedonic regression studies of appliance prices, with a heavy emphasis on refrigerators.
Rising disposable income, availability of smart and energy efficient refrigerator units, and widening base of nuclear families are leading to upsurge in demand for refrigerators. Experimental study of a domestic refrigeratorfreezer using variable. Yalcin tanes, 7 the transient behavior of a domestic refrigerator is investigated by the use of an xray system. In many developing countries like india, most of the vapor compression based refrigeration, air conditioning and heat pump systems continue to run on. Comparative study of domestic refrigerator by using. The following resources provide national, state, and local statistics on the prevalence of domestic violence in the general population, as well as for those involved with the child welfare system. Comparative study of domestic refrigerator by using parallel. Temperature to be maintained for the object that is to be cooled. Narasimha 1,2,3,lecturer, school of mechanical and industrial engineering bahirdar university, bahirdar, ethiopia list of symbols symbol description unit nomenclature a cross sectional area m2 c p. The refrigerator was instrumented with one pressure gauge at the. A study on effect of alternative refrigerant on the performance of a domestic refrigerator. The paper reports the studies on evaluation of energy indices of domestic refrigerators of 165 l capacity in india.
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