TECHNOLOGY Design of LPG Refrigeration System and Comparative Energy Analysis with Domestic Refrigerator (original) (raw)

Design of LPG Refrigeration System and Comparative Energy Analysis with Domestic Refrigerator

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY, 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 oC). 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 small internal diameter, the pressure of LPG is dropped due to expansion and phase change of LPG occurs in an isoenthalpic process. Due to phase change from liquid to gas latent heat is gained by the liquid refrigerant and the temperature drops. In this way LPG can produce refrigerating effect for a confined space. From experimental investigations, we have found that the COP of a refrigerator which uses LPG is higher than a domestic refrigerator

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...

Review Paper on Performance Analysis of LPG Refrigerator

IRJET, 2023

Ozone depletion due to Chlorofluorocarbon (CFC) and Hydrofluorocarbon (HFC) refrigerants is one the major problem to our natural habitat. Also, availability of electricity is still not available in several areas of the world where one needed electricity and refrigeration of water, food, and medicine. The use of LPG for refrigeration purpose can be ecofriendly since it has no ozone depletion potential (ODP). LPG as a refrigerant for refrigeration can be a better alternative. (28) LPG is offered in high-pressure cylinders. When this highpressure LPG gas passes through a capillary tube with a tiny internal diameter, the pressure drops due to expansion, and the LPG phase shifts in an isoenthalpic process. The liquid refrigerant gains latent heat when its phase changes from liquid to gas, and the temperature drops. LPG can generate a cooling effect in this manner. (21))

Model of LPG Refrigerator: A Literature Review

— This work investigates the result of an experimental study carried out to determine the Coefficient of performance of domestic refrigerator when a propane-butane mixture is liquefied petroleum gas (LPG) which is available and comprises 56.4% butane, 24.4%propane, and 17.2% isobutene. This paper also presented an experimental investigation of COP by the effect of changing capillary tube length, capillary tube inner diameter and capillary coil diameter on the mass flow rate of refrigerant in an adiabatic helical capillary tube. Large amount of electricity supply is not available easily in large part of underdevelopment country like India. It will also prove to be an effective for remote area such as research sites, mines, & deserts where electricity is generally not available. The LPG is cheaper and possesses an environmental free in nature with no ozone depletion potential (ODP). Also LPG is available as a side product in local refineries. The results of the present work indicate the successful use of this propane-butane mixture as an alternative refrigerant to CFCs and HFCs in domestic refrigerator. It would include Experimental setup of working model and detailed observation of the LPG refrigerator and represents its application in refinery, hotel, chemical industries where requirement of LPG is more.

EXPERIMENTAL STUDY ON A DOMESTIC REFRIGERATOR USING LPG AS A REFRIGARANT

This project is devoted to feasibility study of substitution of LPG (60% Propane and 40 % commercial Butane) as refrigerant instead of R134a in a domestic refrigerator. An experimental performance study on a VCR system with LPG as refrigerant was conducted and compared with R134a.The VCR system was initially designed to operate with R134a. Experimental results showed that the LPG refrigerant with charge of 40g worked well at loaded condition as it took 30 min. to bring down the temperature of 500g of water from 30 degree Celsius to 6.8 degree Celsius. LPG charge of 60g worked well under unloaded condition. It took 5 minutes to bring down evaporator temperature from 30 degree Celsius to 0 degree Celsius. Power consumed by compressor while working with LPG as refrigerant is considerably low

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.

Thermodynamically Evolution of LPG Refrigerator in Mobile Refrigerator

The LPG is cheaper and possesses an environmental free in nature with no ozone depletion potential (ODP). Also LPG is available as a side product in local refineries. This work investigates the result of an experimental study carried out to determine the performance of domestic refrigerator when a propane-butane mixture is liquefied petroleum gas (LPG) which is available and comprises 56.4% butane, 24.4% propane, and 17.2% isobutene. An experimental investigation of Performance is carried out by the effect of changing capillary tube length, capillary tube inner diameter and capillary coil diameter on the mass flow rate of refrigerant in an adiabatic helical capillary tube. Large amount of electricity supply is not available easily in large part of under development country like India. It will also prove to be an effective for remote area such as research sites, mines, & deserts where electricity is generally not available. The results of the present work indicate the successful use of this propane-butane mixture as an alternative refrigerant to CFCs and HFCs in domestic refrigerator. It would include Experimental setup of working model and detailed observation of the LPG refrigerator and represents its application in refinery, hotel, chemical industries where requirement of LPG is more.

LPG REFRIGERATION SYSTEM

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.

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.

STUDY OF PERFORMANCE EVALUATION OF DOMESTIC REFRIGERATOR WORKING WITH MIXTURE OF PROPANE, BUTANE AND ISOBUTENE REFRIGERANT (LPG

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.