LPG as an Unconventional Refrigerant for Refrigeration (original) (raw)
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A Study Paper on LPG as an Alternative Refrigerant for Refrigeration
Domestic refrigerators consume approximately 17,500 metric tons of traditional refrigerants such as Chlorofluorocarbon (CFC) and Hydrofluorocarbon (HFC) every year which contribute to very high Ozone Depletion Potential (ODP) and Global Warming Potential (GWP). There are many remote areas in India where electricity is not available, hence LPG as a refrigerant for refrigeration can be a better alternative. LPG (Liquefied Petroleum Gas) is the combination of propane, isobutene and highest amount of butane with 56.4%. The use of LPG for refrigeration purpose can be eco-friendly since it has no ozone depletion potential (ODP). This paper deals with the study of Refrigeration with LPG as a refrigerant, the properties of LPG and its comparison with the other refrigerants
Experimental Investigation of LPG as Refrigerant
2015
Refrigeration has made the milestone in human life. Since from very long time the human being has developed so many ways of refrigeration for preserving food, cooling water etc. but yet the techniques are developing. The science of refrigeration hasdeveloped so many ways to improve our life style. The paper considers law of conservation of energy maximum utilization of the fossil fuel and saving energy. In this paper LPG is used as a refrigerant, instead of using closed cycle as it is used in normal practice (VCR), the open cycle has been used. Before burning the LPG in burner, it is passed through the expansion device and evaporator to produce the refrigeration effect without using electric energy. LPG is cheap and posses environmental friendly in nature with no ozone depletion potential.
Design Analysis and Performance of Low Cost Refrigeration System using LPG
2020
Supply of continuous electricity is still not available in several areas of the country and the world. At such places, this work will be helpful for refrigeration of food, medicines, etc... This paper investigates the result of an experimental study carried out to determine the performance of domestic refrigerator when a liquefied petroleum gas (LPG) which is locally available which comprises of 24.4% propane, 56.4% butane and 17.2% isobutene which is varied from company to company is used as a Refrigerant. The LPG is cheaper and possesses an environmental friendly nature with no Ozone Depletion Potential (ODP) and no Global Warming Potential (GDP). It is used in world for cooking purposes. In this project we have designed and analyzed a refrigerator using LPG as refrigerant. As the pressure of LPG is high this stored in cylinder. As this pressurized LPG is passed through the capillary tube of small internal diameter, the pressure of LPG is decreased due to expansion and phase chang...
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 thermo-physical properties apart from the low cost. However, the halogenated refrigerants have adverse environmental impacts such as ozone depletion potential (ODP) and global warming potential (GWP). This project is devoted to feasibility study of substitution of LPG which is locally available and comprises 24.4% propane, 56.4% butane and 17.2% isobutene. The LPG is cheap and possesses an environmentally friendly nature with no ozone depletion potential (ODP). It is used in Libya for cooking purposes .Experimental result showed that the LPG refrigerant with charge of 25g worked well under unloaded condition. It took 15 minutes to bring down evaporator temperature from 31 degree Celsiuse to 0 degree Celsius, in comparison to 90g R-134a which took 14 minutes for the same, under designed project set up. While LPG charge of 35g worked well under unload condition. It took 12 minutes to bring down the evaporator temperature from 31 degree Celsius to 0 degree Celsius in comparison to 90g R-134a which took 15 minutes for the same, under designed project. Ammeter continuously gave reading in the range of 0.6 A to 0.9 A and voltmeter as 210V while working with LPG as refrigerant in comparison to R134a in which ammeter gave reading of 1A and voltmeter as 220V. From here we can easily conclude that power consumed by compressor while working with LPG as refrigerant decreased considerably.
Refrigeration System by Using LPG (Liquefied Petroleum Gas
This paper investigates the result of an experimental study carried out to determine the performance of domestic refrigerator when a liquefied petroleum gas (LPG) which is locally available which comprises of 24.4% propane, 56.4% butane and 17.2% isobutene which is varied from company to company is used as a Refrigerant. The LPG is cheaper and possesses an environmental friendly nature with no Ozone Depletion Potential (ODP) and no Global Warming Potential (GDP). It is used in world for cooking purposes. The refrigerator used in the present study is designed to work on LPG. The performance parameters investigated is the refrigeration effect in certain time. The refrigerator worked efficiently when LPG was used as a refrigerant instead of R134a. The evaporator temperature reached 5ᵒC with an ambient temperature of 35ᵒC. Also from the experiment which done in atmospheric condition, we can predict the optimum value of cooling effect with the suitable operating condition of regulating valve and capillary tube of the system.
WINDOW AIR-CONDITIONER USING LPG
A few days ago refrigeration was regarded as luxurious branch of engineering in the whole world but it has become a part and parcel of present society. Absorption refrigeration cycle is one of the oldest known cycles used for producing refrigeration effect. Great strides had been made to use the heat energy instead of work energy for producing refrigeration as it can be available from the waste fuel and solar energy. The one disadvantage of the system is its low co-efficient of performance (C.O.P.) as compared to the vapor compression system, but it can be acceptable if we use heat energy which is going waste or solar energy; as it is available at no cost. This paper deals with the system which is designed and fabricated, using fuel of Liquefied Petroleum Gas (LPG) as a heating media to generator of vapor absorption system. It not only uses fuel of high calorific value and low cost but also to increase the C.O.P. of system on increased load of the room by regulating the flame temperature and pressure inside the generator such that the system can be affected. Capacity of system is 1.5 T.R.
This paper find out the result of an experimental study performed to determine the performance of domestic refrigerator when a liquefied petroleum gas (LPG) which is locally available which comprises of 24.2% propane, 57.6% butane and 17.2% isobutene which is change from company to company is used as a Refrigerant. The LPG is cheaper and possesses an environmental friendly nature with zero Ozone Depletion Potential (ODP) and no Global Warming Potential (GDP). It is used in world for cooking activity. The refrigerator is designed to work on LPG. The performance parameters investigated is the refrigeration effect in specific time. The refrigerator worked efficiently when LPG was used as a refrigerant in the place of R134a. The evaporator temperature reached 4ᵒC with an ambient temperature of 36ᵒC. Also from the experiment which done in atmospheric condition, we can determine the optimum value of cooling effect with the suitable operating condition of regulating valve and capillary tube of the system.
International Journal of Scientific and Engineering Research (IJSER), 2015
In this work, the performance of Liquefied Petroleum Gas (LPG), which has zero ozone depleting potential and very low global warming potential, was investigated as working fluid in the vapour compression refrigerating system as a possible alternative. The LPG used for the study consist the mixture of propane and butane in the ratio 60/40% by mass. An experimental refrigerator was developed as test rig and the rig was charged with 50g of LPG. Tests were carried out at various ambient temperatures, producing average ambient temperatures ranging from 27.5 to 33.5℃. A steady-state process design and operational analysis simulation software, SIMSCI/PROII, was used to determine the enthalpy values for LPG refrigerant. The values obtained were then used to calculate important performance parameters. The results showed that as the ambient temperature increases, the coefficient of performance (COP), and the refrigeration capacity decreases, but the compressor power input increases. The average compressor power consumption of LPG was 12.5% lower than that of R134a, while the average refrigeration capacity and COP of LPG were 4.2% and 11.16% higher, respectively, than those of R134a. Finally, the results showed that, the system performed better with LPG than R134a. Therefore, LPG refrigerant can be successfully adopted.
DOMESTIC REFRIGERATION USING LPG CYLINDER
IRJET, 2022
In this task we have designed and analyzed a fridge the use of LPG as refrigerant. As the strain of LPG is excessive this saved in cylinder. As this pressurised LPG is exceeded thru the capillary tube of small interior diameter, the strain of LPG is diminished due to enlargement and segment alternate of LPG takes place in an isenthalpic process. Due to segment alternate from liquid to fuel latent warmth of evaporation is won via the liquid refrigerant and the temperature decreased. In this way LPG can produce refrigerating impact in the surrounding. From experimental investigations, we have observed that the COP of a LPG Refrigerator is greater than a home refrigerator.
2014
Supply of continuous electricity is still not available in several areas of the country and the world. At such places, this work will be helpful for refrigreration of food, medicines, etc... In this work we have investigated the performance of a refrigerator based on liquefied petroleum gas (LPG) refrigerant since LPG is locally available and is easy to transport anywhere. LPG is a byproduct in petroleum refineries and comprises of 24.4% propane, 56.4% butane and 17.2% isobutene which have very low boiling point (lower than 0 o C). The use of LPG for refrigeration purpose can be environment friendly since it has no ozone depletion potential (ODP). Usually LPG is used as a fuel for cooking food in houses, restraurants, hotels, etc.. and the combustion products of LPG are CO2 and H2O. In this project we have designed and analysed a refrigerator using LPG as refrigerant. LPG is available in cylinders at high pressure. When this high pressure LPG is passed through the capillary tube of ...