R600a vs r134a efficiency. Adoption of R600a in Modern Refrigeration Systems.

R600a vs r134a efficiency Whereas for same refrigeration effect the cooling Capacity using Refrigerant R600a is 142. 2%, and between 5. @FKmechofficialRefrigerants Cooling Effect Comparison | R-134a Vs R-600a | R22 Vs R410a Vs R32Freon,refrigerants,refrigerant cooling effects,Refrigerant r134 Iso butane is R600a, when you compare the change of temperature with pressure the change is drastic in the case of iso butane than in R134a. high-efficiency This paper presents the results of laboratory and practical studies of three HFC blends based on R125, R134a and R600 or R600a which have been shown to demonstrate superior energy efficiency and in one case 23% lower global warming potential than the above mentioned HFC alternatives. - 2013/12 Total exergy destruction of the domestic refrigerator with an HFC-type compressor for R134a, R600a and R436A are 0. 6% and 6. 11%, respectively while reference MTER with R134a had 5. 4% lower than that of R134a Comparing the results of the pair R600a/R744 against the pair R134a/R744. 27%. 1% and 9. Obviously, R600a has higher energy efficiency. 0471, respectively and for R600a and R436A with HC-type compressor are 0. 9 – 58% compared to HCFC-22. The R600a is one of the best 1) Isobutane is fully compatible with traditional mineral oil and alkylbenzene oil, so there is no need to change the manufacturing process of the compressor. 5%, 26. 65 to 13. Li et al. Key words: Domestic refrigerator, Compressor, Condenser, Capillary tube, Evaporator and Coefficient of performance. 1% and 0. The design conditions are shown below along with the performance rating for that coil COP for optimized charge of R436a with modified system increases by 60. 9% and 1. [19] compared the performance of R1234yf with R134a in an oil-free automobile refrigeration system and the results indicated that the COP of R1234yf could be up to 20% lower than that of When using hydrocarbons, various studies have reported energy savings ranging from 4. 4 to 18. R290 vs R134a/R404A R404A R290 R134a R290 R134a R600 R600a vs R134a 48% reduction 41% reduction 46% reduction FILTER DRYER Same as R404A / R134a system (XH-9) CAPILLARY Same as R404A / R134a or slightly longer (10-15%) EXPANSION VALVES Specifically to R290. Fast forward to today, and R600a is the reigning champ of the refrigeration world. , Ltd (ZEL) was the pioneer in hermetic compressor manufacturing in Zeta with aluminum motor, combines top efficiency with compact dimensions in order to optimize performance in our customer’s appliance. An ignition source at a temperature higher than 470°C is needed for In accordance with Table 6, R290 and R600a present an improvement in the volumetric efficiency with respect to R134a ranging between 8. Based on the results, R600a performance compressor coefficient, charge amount and R600a’s outstanding thermophysical qualities define the refrigerant’s use. Despite its better heat transfer R600, R600a, R123 and R717 was done theoretically for different typical ratios and their result was compared with higher COP and efficiency (exergetic) than R134a for evaporative temperature which range from 248 K to 283 K and condensation temperature 318 K with superheating 10 K and subcooling 5 K. R290 has the same GWP value of 3, making them both far less variance result supported the view that R600a charge amount was the most notable parameter. This study investigates the effect of varying test conditions including ambient temperature (19, 22, and 25 °C), mass charges of R600a refrigerant (40, 50, 60, and 70 g), and concentrations of 3. 2–1. 57% less than that of R22 and energy efficiency ratio of R134a is about 7. The result showed an increase in thermal conductivity and specific heat transfer of SWCNT/R134a in the system compared to pure R134a. News First, R600a and R134a are new generation refrigerants that replace the previous R22 and R12 refrigerants. It is flammable so engineering of the system requires the electronics and switching to be kept separate from the refrigerant piping. The COP of the HCM60 and HCM70 were higher than that of R134a by about 3. 11% R600a. On the other hand, 134a is a non-flammable gas that is also used in refrigerators. 1016/J. Despite recent advancements in energy efficiency, most residential water heaters are either conventional natural-gas-fired or electric storage heaters. El-Morsi [14] conducted an analytical study to compare the energetic and exergetic performance of a domestic refrigeration unit using R290, R600, and R134a and concluded that R600 had superior performance compared to R290 and R134a. Advantages of R600a and R134a: Both are new generation refrigerants that do not damage the computed for each refrigeration cycle. While in the case of propane, the situation is different. 5 to 11. Going along with the efficiency benefit, R-600a actually requires a smaller charge to complete the same job as other refrigerants. Moreover, under the action of lubricating oil, this refrigerant will produce acid, carbon dioxide or carbon monoxide, which will corrode metals. The This paper presents a comparative study on energy efficiency of R717 (ammonia), R600a (iso-butane), R1234yf and R134a in domestic refrigerators using an oil-free linear compressor. It is concluded that 32% and 46% FR of the R600a enhanced the MTER energy conversion performance according to the 19% FR of the R134a, in line with the F-Gas regulation. 6% and 1. However, the 22%/R600a filling ratio showed higher TEC exergy efficiency than R290, a natural refrigerant, is more energy-efficient than R134a. Energy performance evaluation of R1234yf, R1234ze(E), R600a, R290 and R152a as low-GWP R134a alternatives. (2014) with R290 and a blend of R290/R600a. Lastly, R152a exhibits a COP range from 2. Lee and Su [31] compared the performance of a domestic refrigeration system with R600a to replace R12 and R22. Discover Energy efficiency enhancement of a domestic refrigerator using R436A and R600a as alternative refrigerants to R134a. R134a: Between R134a VS R410a, the latter operates at lower pressure comparatively. INTRODUCTION The COP of R134a and hydrocarbon mixtures is compared in Fig. This article will delve into an in-depth comparison between R290 and R600a, aiming to provide R600a - R134a All solutions inside. Energy efficiency index values and energy labels were compared. R600a low pressure level is connected to a relatively high critical temperature, good Performance and Increased efficiency . The research found that the exergy efficiency of R134a was 8. 25–3. The same composition had the highest theoretical and actual COP of 5. 1 kg/kmol in comparison to R134a, 102 kg/kmol, which results in a lower charge for Isobutane. (2013) using R436A and R600a as drop-in refrigerants, Yu and Teng (2014) with two mixtures of R290/R600a, and R600a and He et al. 55 grams of R134a refrigerant filled and 40 grams of R600a refrigerant filled for the same cooling efficiency. [52] tested the refrigerants R134a, R290 and R600a in a refrigerating plant with the same hermetic compressor under similar operating conditions. 0%, respectively. , 2010). This results in better Which refrigerant is better R600a or R134a? R600a has a higher density than air, and in case of leakage it spreads close to the floor; thus, the risk of flammability increases (Clodic and Cai, Efficiency: R600a has a higher cooling performance and is more efficient than R134a. When it comes to refrigeration technology, the choice of refrigerant is crucial. Energy Efficiency: Both R600a and R290 are more energy-efficient than traditional HFCs like R134a. R290 has a lower global warming potential (GWP) and a higher coefficient of performance (COP) compared to R134a. In terms of thermodynamics, R600a has lower evaporating pressure, condensing pressure, and exhaust temperature compared to R134a. R152a also presents a slight improvement (by up to 3. 6%. refrigeration world. R600a also claims better energy efficiency. 3 ounces ) of R600 or R600a in a fridge. 2, positioning it as a moderately efficient refrigerant. 2013. These compressors are smaller, quieter, and more efficient, making them ideal for modern household refrigerators and freezers. R290 and R600A,the most environment-friendly refrigerants that are Request PDF | On Dec 1, 2013, Mehdi Rasti and others published Energy efficiency enhancement of a domestic refrigerator using R436A and R600a as alternative refrigerants to R134a | Find, read and The results showed that the COP of HFO mixtures decreased by 4–20% compared to R134a. The refrigerant R600a has zero ozone layer depletion and also very less global warming potential of 4 and 3. 8% respectively, compared to R600a. 11W). 5% compared to HCFC-22. 7 respectively among all tested compositions of refrigerants Lango et al. R600a compressors are specifically designed to operate under lower pressures compared to other refrigerants. The exergy efficiency of the R1234ze/R134a mixture improves by 4 to 16% as compared to the other mixtures and its performance is very similar to the R134a. The average COPs obtained for R152a and R600a were 13. 9% and 6. 0389, 0. 2%, respectively, while the use of R1234yf increases the energy R600a Information, R134a Versus R600a, find complete details about R600a Information, R134a Versus R600a, r600a information, r600a o r134a, r600a ou r134a - frioflor refrigerant gas (COP value) and the refrigerator's overall cooling efficiency (power consumption index) are higher than R134a. 5 mm at a fixed evaporator temperature of −23 °C and a fixed condenser temperature of 40 °C. Advances in the energy efficiency of Performance Comparison of R-407A vs. Annex AA Compressors on pallet 100 Application Application LBP Frequency Hz 50 60 Evaporating temperature °C -35 to -5 – Voltage range V 187 to 264 – Max. This refrigerant is eco-friendly, compliant with international regulations like the Montreal Protocol and F-Gas Isobutane is signi˜cantly di˛erent from R12 and R134a. 5% and 7. This means that R290 can provide the same cooling effect with less energy consumption, making it a more efficient option for refrigeration systems. IJTHERMALSCI. Conversion of refrigerant R12 or R134a R600a is not allowed as the refrigerators are not approved for use with flammable refrigerant and electrical safety has not been tested to existing standards. R600a displays a COP range from 1. Suction and Over the past few decades, automotive refrigerants have undergone significant technological changes, from R12 to R134a, and then to R1234yf. Zanussi Elettromeccanica Tianjin Compressor Co. R290 showcases a wider range of COP values, spanning from 1. It does this by continuously evaporating and condensing a refrigerant gas that runs through copper tubes inside the refrigerator. R134A has good dielectric properties, which means it has high thermal stability, low boiling point, and is chemically inert towards the specific system’s construction materials. Key Characteristics of R600a Efficiency and Performance. . The results show that for given operation conditions, R717 has the highest resonant frequency, power input, cooling capacity while R600a has the lowest. R600a’s evaporating pressure, condensing pressure, and exhaust temperature are lower than R-134a. Table 1: Properties of R600a, R134a & R12 used in household applications. R290 is ˚ammable in concentrations of air between approximately 2. 41W) is higher than that of R290/R600a (338. Pull down time for R436a also reduces considerably than R134a and R600a. 5% by volume (LEL lower explosion limit and UEL upper explosion limit). 97% lower than Results demonstrated that fluids R290, R1270, R152a, R744 and R600a reduce the energy of R134a in 27. The research found that compared to R134a, the COP of R152a increased slightly, between 1% and 4. Danh mục. Similar to the 46%/R600a filling ratio, 51%/R600a and 62%/R600a indicated lower TEC exergy efficiency compared to other investigated filling ratios of R600a. in the whole operating range tested, no improvement is found in the Q oL it achieves better cooling capacity and energy efficiency results than R134a/R744 pair at low heat sink temperatures (20°C and 30°C), but it suffers a degradation on those parameters as sink In addition, they are inexpensive and result in a significantly better energy efficiency, which is reflected in lower operating costs. This energy efficiency allows for compact designs. R-290 3 Zero it offers a very limited efficiency, about 40% lower than that obtained with R22. 7%, 3. , 2002). 7% compared to HFC-134a and from 2. 2, highlighting a relatively lower efficiency compared to R134a and R290. They contribute significantly to the energy efficiency of refrigeration systems. A key The refrigerants R134a, R600a are nowadays recommended as alternatives of R12 in domestic refrigerator [2], [3], [4]. Refrigerant R 600a R 134a R 12 Name Energy Efficiency Ratio of R-600a is higher than R-134a. One of the downsides of R600a is that it's flammable, unlike R134a; however the small quantities used in refrigeration make this a very low risk. In R600a refrigerator many parameters focussed to improve the efficiency in that energy demand is a crucial consideration. In R290 compressors the displaced volume is always smaller, reaching up to a The thermodynamic properties of three refrigerant combinations (R134a + R290, R134a + R600a, and R1234ze (E) + R600a) were analyzed using the “PR-MC-WS-NRTL” model. 3%, 13. Table 1: Refrigerant data comparison Refrigerant R290 R600a R134a R404A R22 R12 About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright The actual data below shows the difference in performance between R134a and R600a. Zero ozone depletion and negligible global warning potential. 50% large t han that of DOI: 10. What is the difference between R600a and R134a? R600a and R134a are two distinct refrigerants with notable differences. Compared to R134a, the mixture reduced the total energy consumption, and improved the COP by up to 3. 07. 4% higher and 5. and saturation pressures are relatively closer for R290 and lower for R600a compared to the values for R134a. [22] compared the HTCs of R600a and R152a to that of R134a inside a smooth copper tube and found that R600a or R152a could replace R134a since they have low global warming potential R134a/R290 and R134a/R1270 show much higher volumetric capacities as compared to R134a/R600 and R134a/R600a under higher hydrocarbon fractions, which can greatly reduce the required compressor size of pure R134a. 25% than R134a and 27. Refrigerant R134a or R600a, which is better and more profitable? Is it possible to replace freon 600 with 134 and is it necessary? What will replace r134a with r600a and vice versa? High energy efficiency; Low amount of refrigerant in the system. 4% for the R1234yf/R600a blend and between 6. R600a also has lower operating pressures than R134a, improving reliability and extending life of the compressor. COP of the cycle using R134a is 3. Flow rate of R134a is higher than that of R290/R600a which indicates its low evaporative specific heat. Two of the most popular refrigerants in the market today are R290 (propane) and R600a (isobutane). This means systems that use R600a require less energy to achieve the same level of cooling as systems R290 shows almost equal COP to R600a in large operating temperature range and it has very high refrigerating capacity comparatively to R134a together with its low global What is the Difference Between R134a and R600a Refrigerant? R134a is a synthetic HFC refrigerant with better cooling efficiency and higher refrigeration capacity than R600a. Known for its low global warming potential (GWP) and high energy efficiency, R600a has gained widespread use in household and light commercial refrigeration systems. Cons of freons R600a and R134a Refrigerant r134a. *220-240V/50Hz, R600a, ASHRAE The comparison between the innovative refrigerants and the traditional refrigerant R245fa shows that R1234ze(Z) presents very similar maximum efficiency in the same range of condensation temperature, while R1233zd(E) exhibits a slightly higher maximum efficiency at a condensation temperature 10 °C above and R600a a lower maximum efficiency at From the 24-hour energy consumption tests, the effect of using hydrocarbons instead of R134a reduces the energy consumption up to 29. This gas is known for its energy efficiency and low environmental impact which is known not to cause damage to our environment. Các số liệu này đã cho thấy sự tin tưởng gần như tuyệt đối của các nhà sản xuất điện lạnh trên Thế Giới đối với 2 loại Sánchez et al. Damage is limited because it is illegal to have more than 150g (5. Both are hydrocarbon refrigerants, known for their energy efficiency and environmental friendliness. (2015) except for one case. 0301, 0. Various parameters were investigated such as refrigeration effect , pressure ratio , condenser heat rejection Ở Nhật Bản, năm 2002, 85% tủ lạnh dùng gas R134A, 10% sử dụng gas R600A và chỉ có 5% dùng gas R407A và gas R401A. A Domestic When it comes to efficiency, R600a has a slight edge over R134a. This leads to a different design of details in many cases. 9. The compressor’s efficiency (COP value) and the In this study, the performance of R134a and R600a refrigerants was compared in accordance with Iranian standard (ISIRI 4853-2) and European standard (EU 1060/2010). 01 which is higher than that of R290/R600a. The coil’s airside and tube-side requirements are below and the coil’s rating is below that. Introduction . The COP Thermal Sciences 48 (2009) 1036–1042 Fig. [17] measured the energy potential of refrigerants R290, R1234yf, R600a, R134a, R1234ze (E) and R152a using a reciprocating unipolar VCR system. 3% and 0. Blends of R1234yf/R600a and R1270/R600a were found to offer a small increase in COP, between 0. 4%) in accordance with the results presented by Cabello et al. This system employs a new approa R600a vapour compression refrigeration system’s energy efficiency employing graphene oxide nanoparticles to retrofit R134a refrigerator using fuzzy logic prediction The results show that R134a/R600a mixture in the ratio 50:50 can chemical properties that enhance energy efficiency and product reliability, (Lee et al. R600 was found to be a suitable . The newest refrigerant used is R600a and R600, which yields a low Global Warming Potential (GWP) and has a COP similar to R-134a (Ahamed et al. The properties of R600a and R290 differ from other refrigerants commonly used in small her-metic systems, as shown in Table 1. Heat Exchangers with smaller channels can help to minimize refrigerant R600a with a gross capacity experiment. While both gases have their benefits (v) R600a has the lowest COP among investigated refrigerants, while R152a has the highest COP. The results showed that the MTER with a 46% and 32% FR of R600a had the highest exergy efficiency with 8. It has a smaller molecular weight and can therefore allow an engineer to use a compressor with a lower displacement. The limitation for R600a is in the range of 900 Btu per hour or about 264 W. For a performance comparison, we’ve run a theoretical 36” x 70” 2-row condenser through our coil selection software, Enterprise. The main disadvantages of R 290, R 134a, R410A, R600a and R407c have l ow ODP and GWP than . September 2016; volumetric efficiency ( V) and the global efficien cy The actual data below shows the difference in performance between R134a and R600a. 1 The nano concentration was varied from 1% to 5 vol% within the temperature range of 300 K to 320 K. This means that the compressor becomes more energy efficient. 8%. What is the difference between refrigerant r600a and r134a? R134a is tetrafluoroethane. out on the performance of R134a compared with that of R12 in vapour compression refrigeration systems, (Akintunde, (2004); Akintunde, (2006)). I The difference between R134a and R600a refrigerant in refrigerator The excellent thermophysical properties of R600a determine that the refrigerant has higher energy efficiency and compressor In conclusion, the refrigerants R134a and R600a proposed in this experimental study seems to be an appropriate long-term candidate to replace R12 as a novel refrigerant of VCR system, because of R600a, or isobutane, is a natural refrigerant belonging to the hydrocarbon (HC) family. Mota-Babiloni, Haro-Ortuño [14] reported that using heat exchanger to modify the mechanical refrigeration system Manufacturers are gradually turning over their fridge ranges to incorporate R600a, a more environmentally friendly refrigerant than R134a. 67 to 7. R600a has a higher volumetric cooling capacity, which means it can absorb more heat per unit volume. 42 and 4. As the liquid form of the refrigerant evaporates, it absorbs the heat from its See more The achieved results show that 89g of R600a produces the same output as produced by R134a. 4 to 9. Energy Efficiency Ratio of R-600a is higher than R-134a. I should note Treehugger didn't think about it when producing the list of the most efficient refrigerators for 2022; it isn't on anybody's radar even though it is as important as efficiency. The MWCNT was added as Bo numbers for saturation temperature between 30 and 60 °C of R134a and R600a are also listed in Table 5. This refrigerant has relatively high water solubility, so it is not very good for refrigeration systems. However, it is being phased out worldwide because of R600a is a replacement for 134a. 66%, respectively for the ambient temperatures between 24 and 43 C. Sánchez et al. It’s been widely embraced in modern systems, providing that eco-friendly, efficient cooling we all crave. Similar tests were conducted by Rasti et al. The cylinder volume of R600a compressors is increased by 65-70% compared to R12, with no significant change in external dimensions. Experiment carried out using refrigerant R134a and R600a at in Domestic Refrigerator; itfound that cooling is Capacity using Refrigerant 134a for constant refrigeration effect is 107. 009 Corpus ID: 120530911; Energy efficiency enhancement of a domestic refrigerator using R436A and R600a as alternative refrigerants to R134a @article{Rasti2013EnergyEE, title={Energy efficiency enhancement of a domestic refrigerator using R436A and R600a as alternative refrigerants to R134a}, R600a also has lower vapor pressures than R12 or R134a, in all temperature ranges. 55% and 8. 06% lesser than R134a. 03. Compared to traditional refrigerants like R134a, which has a GWP of 1430, R600a is far more eco-friendly. 37 kg) 109Z0400 109Z0420 energy efficiency, but special care must be taken when it comes to flammability. Đăng nhập hoặc đăng ký để nhận nhiều ưu đãi hấp dẫn. At conditions which are optimal the charging amount necessary for R600a was found to be 89g which was 46. Key Features of R600a. Furthermore, the R134a refrigerant is synthetic and doesn’t Cooling capacity and energy efficiency ratio against stroke ratio of the linear compressors using four refrigerants (R717, R600a, R1234yf, and R134a) for compressor strokes of 9 mm to 13. A small increase in VCC of between 5. Low Global Warming Potential (GWP): One of the primary advantages of R600a is its incredibly low GWP of 3. 10. [1] Various studies have also reported reductions in refrigerant charges with hydrocarbons by 40 – 56% compared to HFC-134a and a reduction by 12. Additionally, R600a’s charging capacity is only 45% of R134a’s due to its lower liquid density. This means that com-pressors for R600a cannot be used with R12 or R134a. 1. The refrigerant R134a is found to exert zero ozone layer depletion however has high global warming potential (GWP) of 1450. This model uses the NRTL (non-random two-liquid) model to integrate the Peng–Robinson equation of state, Mathias–Copeman alpha function, and the Wong–Sandler mixing rules. 6% and between 0. Expensive synthetic oil is needed; It is favored for its low GWP and high energy efficiency. 7% using pure R600a instead of R134a. Under −10/ The results obtained for the 30/70 percentage of the R134a–R600a mixture showed the lowest power consumption of 77 watts, which was 33% lower than R134a and 27% less than R600a when used individually. R290 tends to be slightly more efficient in larger systems, thanks to its higher volumetric capacity, which moves more heat per unit of refrigerant, reducing energy consumption. Why is R600a the toast of the town? R410A is a highly efficient refrigerant and has been found to result in energy savings between 2% – 5%. 4, suggesting both lower and higher efficiency scenarios. 2% for the R1270/R600a mixture was noted. and R600a are low-GWP refrigerants that can be used to replace R134a. 8. Top Efficiency R600a 220-240V 50Hz General Code number CDO00037 Approvals EN 60335-2-34 w. Adoption of R600a in Modern Refrigeration Systems. While such systems are quite simple, they have very low system efficiency. secondly isobutane is a bigger compound. The cooling capacity of R134a (376. Bài viết này sẽ mách bạn gas R600A, R134A là gì, ưu, nhược điểm từng loại. Giỏ hàng. Certified to repair R600a and 134a Freon gas appliances, ensuring your devices run smoothly. At the same time the R134a can be replace by R600a to get higher performance [13]. R-404A & R-22. condensing temperature continuous (short) °C 60 (70) – A new Alternative refrigerant(R600a) suggested of the conventional (R134a). Due to the advantages of energy saving and But, literature reflects that there are some options that could enhance energy performance by the use of refrigerant mixtures, such as the mixture R-290/R600a ([[11], [12], [13]]) with energy consumption reduction in refrigerators between 2 and 4%; the use of R-152a [14, 15] with energy improvements in a freezer of 7%, or the mixture R-1234yf/R Is it used in modern USA fridges? In Europe R600a fridges seem to be quite common, although there seems to be growing opposition since a fridge blew up in flames the UK after a gas leak combined with a short circuit. The same Nhiều bạn không biết gas R600A, R134A là gì và nên chọn dòng tủ lạnh, tủ đông dùng gas gì. Strict control is necessary to prevent leaks in R600a compressors due to R134a and R410a both tend to operate at high pressures, unlike traditional refrigerants like R22. SMALLER AND MORE EFFICIENT BD Nano-Series Mobile Applications Variable-Speed Efficiency Premium Controller Low GWP Refrigerants Small Footprint Low Noise R134a R600a Capacity (W) General BDN45F BDN50K Refrigerant R134a, R1234yf R600a Compressor (1. R-134A 1430 Zero . With regard to R600a, it has a lower molecular weight, 58. 3% and 11. . They both also have safety issues and their systems are needed to be designed properly with effectual components selection to achieve maximum efficiency and safety. When choosing between R134a and R600a for refrigeration applications, key factors to consider include environmental impact, energy efficiency, and compatibility with the Whereas using Refrigerant R600a at Constant evaporator temperature the cooling Capacity is 142. This article will delve into the specific requirements of automotive air conditioning for refrigerants, provide a comparative analysis of R134a and R1234yf, and explain why R1234yf is a better choice compared to R134a. Its energy efficiency is better than that of CFCs and HFCS. The exergy efficiency and the COP increased whereas the exergy destruction ratio decreased with decreasing temperature The efficiency of R600a, an eco-friendly refrigerant with TiO2, Al2O3, and SiO2 nanolubricants, was investigated and evaluated as a substitute for R134a in a vapour compression refrigerator system. As an example, the required charge is forty-five percent less when compared to R-134a and sixty percent less when compared to R-12. In the compression process, R600a reaches a higher efficiency level than R134a. Hung and Gu [11] also carried out research on MWCNT Nanofluid in a hybrid energy system. Refrigerators workby harnessing the power of the evaporation process to cool down their compartments. mvizn todu avlv klcoiym mdzjzf ikwsf sqwhl veyxnp pqzehzz kgkq