WINDOW AIR-CONDITIONER USING LPG (original) (raw)
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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...
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.
IRJET- LPG REFRIGERATION SYSTEM WITH ZERO OPERATING COST
IRJET, 2021
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 refrigerators. In this project a new concept for airconditioning systems by using Liquefied Petroleum Gas (LPG) is proposed. In this work we have investigated the performance of a refrigerator by using LPG as refrigerant as LPG is locally available and is easy to transport anywhere. LPG is a byproduct in petroleum refineries and comprises 24.4% propane, 56.4% butane and 17.2% isobutene which have very low boiling point (lower than 0°C). The purpose of using LPG for refrigeration is because it is environment friendly, since it has no ozone depletion potential (ODP =0) and the combustion products of LPG are CO2 and H2O. In this project we have designed and analysed a car ac using LPG as refrigerant. LPG is available in cylinders at high pressure. When this high pressure LPG is passed through a small internal diameter of the capillary tube, the pressure of LPG gets dropped due to expansion and phase change of LPG occurs in an isenthalpic 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.
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.
IRJET- LPG REFRIGERATION SYSTEM
IRJET, 2020
This paper researches the world today is concerned about saving the environment, everywhere measures have been taken up to reduce pollution. Investigates the result of an experimental study carried out to determine the LPG is locally available which comprises of 24.4% propane, 56.4% butane, and 17.2% isobutane which is varied from company. The LPG is cheaper and possesses an environment friendly nature with no Ozone Depletion Potential (ODP) and no Global Warming Potential (GDP). We have design and analyzed a refrigerator using LPG as refrigerant. As the high-pressure LPG stored in cylinder. Pressurized LPG is passed through the small internal diameter of capillary tube. The result is decreasing the pressure of LPG due to expansion and phase of LPG occurs in an isenthalpic process. The latent heat of evaporation gained by the liquid refrigerant in evaporator and temperature decrease of surrounding. That is the way the LPG can produce refrigerating effect. Performance parameters investigated is the refrigeration effect in certain time. The refrigerator worked efficiently when LPG was used as a refrigerant instead of any other refrigerant. 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 and the evaporator temperature goes down to the 0.5 ˚C. In the final result we have found that the COP of a LPG Refrigerator is higher than a domestic refrigerator.
Journal of Scientific and Engineering Research (JSAER), 3(4); 350-357, 2016
The design and construction of a refrigerator as a test rig, in investigating the performance of Liquefied Petroleum Gas (LPG), which has zero ozone depleting potential and very low global warming potential, as working fluid in vapour compression refrigerating system as a possible alternative. The design was made with these assumptions:(a) steady state operation; (b) no pressure loss through pipelines,; (c) heat losses or heat gains from or to the system are neglected and of 75% isentropic efficiency. The following heat sources are considered: transmission load,q t = (A)(U)(∆T), infiltration load, q a = m a (h o – h i), product load, q pa = (m)(c)(∆T), specific heat given off by the product in freezing, q f = mL f, , quantity of heat given off by the product in cooling from its freezing temperature to the final storage temperature, q pb = (m)(c)(∆T), light Load, q L = Light rating(W) x Time(S). The total cooling load capacity of the refrigerator was obtained summing the various sources of heat into the refrigerated space, q TCL = q t + q a + q pa + q f + q pb + q L. The total cooling load (Q TCL) in watt is obtained to be 0.27302 kW. Considering 10% of safety factor, = 0.027302 kW approximately =0.300322 kW. This average load is referred to as Required Equipment Capacity (REC), which is used as a basis for component selection. The required equipment capacity obtained was 0.451 kW. The desired running time is 16 hours/day. The joints were properly welded. The major bought out components are: the evaporator, the compressor, the condenser and the expansion device.
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 ...
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 of LPG used refrigeration system using Nozzle expansion
International Research Journal on Advanced Science Hub, 2020
The major reason for the depletion of the ozone layer is refrigerants from to refrigeration system, instead of that to hydrocarbons(HC) like liquefied petroleum gas(LPG) is proposed as working fluid in refrigeration system .The hydrocarbons while used as a refrigerant posses many good characteristics such as:-very low cost, nontoxic, zero ozone layer depletion potential, strong compact ability. To safeguard the depleting ozone layer LPG is the perfect option. This system works by the expansion of LPG from its form to gaseous form resulting in decrease of pressure and increase in volume of the LPG. By this the temperature drop occurs and makes a refrigerant effect. This cooling effect can be utilized for refrigeration work. For heating purposes the same gas is again utilized after the cooling cycle.