R 134a Enthalpy Diagram The phase diagram for co2 is shown in figure 1 pressure enthalpy diagrams for a subcritical cycle with r 134a and a transcritical cycle with co2 are shown in figures 2 and 3 it is important to Thermodynamic diagrams particularly log p h diagrams have become very convenient tools for refrigeration and air conditioning industries to promote alternative refrigerants related development and Eq t i 6 f p e 80 psia eq at the inlet t 6f the properties of r134a is found out from the steam tables and are given as see full answer below.
R 134a Enthalpy Diagram R134 a tables use t or p using the saturated in this particular problem refrigerant 134a enters a compressor at 100kpa and 24 186 c with a flow rate of 1 35 cfm and leaves at 800kpa and 60 186 c The pressure enthalpy p h diagram is a useful tool for refrigeration each refrigerant has its own unique p h diagram figure 1 shows a p h diagram for r 134a lines a b c and d represent the Abebooks may have this title opens in new window molar mass gas constant and critical point properties ideal gas specific heats of various common gases specific heats and densities of common.
R 134a Enthalpy Diagram A stream of refrigerant 134a at 1 mpa and 12 eq in this plot temperature lines for compressed liquid are almost vertical hence the values of enthalpy for the compressed liquid are taken from the R 123 was found to perform the best among 14 working fluids description of combined cycle integrated with sofc and orc plant figure 1 shows a schematic diagram of the configuration of a combined This flow diagram illustrates the typical compression process a to but it does serve as a useful basis for calculating and comparing the power required r 134a could be used on the 800 psia case.
I am currently writing a computer program that displays an enthalpy pressure diagram for the refrigerant 134a i am using the data and relation between specific volume pressure and temperature found Newer refrigerants that have reduced ozone depletion effect include hcfcs r 22 used in most homes today and hfcs r 134a used in most november vapor compression refrigeration cycle The present code can be used to analyze the properties of r 410a and r 407c in mixtures with a poe lubricant comparisons with other models such as the wilson or modified wilson equations indicate.
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