La menor densidad del líquido del refrigerante R600a hace que su capacidad de carga sea del 45% del R-134a. R600a no tiene efecto invernadero. In R290 compressors the displaced volume is always smaller, reaching up to a 40% reduction when compared to R134a models. Isobutane’s total GWP is 3. investigated and compared with the performance of refrigerator when R134a, R12, R22, R290, R600a is used as ffect, condenser duty, work of compression and Heat Rejection Ratio where investigated. Pressure R600a 1.2 Capacity R600a The first remarkably large difference between R600a and R134a or R12, is found in the pressure level, which is much lower, e.g. La presión de evaporación, la presión de condensación y la temperatura de escape del R600a son todas más bajas que las del R-134a. Sticking with the environmental side of things, R-600a also has a very low Global Warming Potential (GWP) when compared to other synthetic refrigerants such as R-134a or R-404A. Comparative Analysis of Cop Using R134a & R600a Refrigerant in Domestic Refrigerator at Steady State Condition Author: M.Abuzar Qureshi, Shikha Bhatt Subject: Comparative Analysis of Cop Using R134a & R600a Refrigerant in Domestic Refrigerator at Steady State Condition Keywords Then, R134a was replaced by 60 g of R600a, compressor was changed to a HC type one and exergy analysis was applied to the refrigerator to improve its performance. For R134a, 25ºC and 32ºC results are far enough to … R600a also claims better energy efficiency. Propane operates with higher pressures compared to R600a or R134a. Figure 1. lnP-h diagram of ideal vapor compression cycle Table 2 Refrigerants enthalpy value Refrigerants Enthalpy R600a R134a R290 R1270 R32 R22 R152a R134a, R32, R152a, R290, R1270 and R600a to be analyzed have been taken from the Refprop 7.0 software. at -25 °C evaporation roughly 55 % of R134a or 45 % of R12. In connection with this, the normal boiling point is at 15 K resp. The energy consumption and COP of hydrocarbons and there blends shows that hydrocarbons can be used as refrigerant in the domestic There are also no venting regulations to worry about when dealing with R-600a. 18 K higher. 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. While in the case of propane, the situation is different. Moreover, EEI values are absolutely different.Another important point is comparing the results for the same refrigerant at different temperatures. 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. Greenhouse gases (GHGs) warm the Earth by absorbing energy and slowing the rate at which the energy escapes to space; they act like a blanket insulating the Earth. According to the results, R600a charge amount, compressor COP and condenser fan rotational velocity were selected for Taguchi design. The labels for R134a and R600a are "D" and "C", respectively. Our conversations with manufacturers regarding this changeover come with assurances that both the design of the fridges have improved to cope with this change. This leads to operating R-32 vs R-410A vs R-134A vs R-290 vs R-22 vs R-600A (AC Refrigerants) Vs Chaitanya. R600a also has lower vapor pressures than R12 or R134a, in all temperature ranges.