R 717 Pressure Enthalpy Diagram. These charts were provided courtesy of danfoss using their free coolselector 2 software. A simplified pressure enthalpy diagram is shown below describing this information.
Its origins as a refrigerant can be traced all the way back to the 1800s and it was one of the first refrigerants used in a variety of applications. R 12 or freon 12 ccl 22. An ammonia phase diagram are included.
Figure 1 3 saturated properties for r 22 10 to 64.
Figure 3 shows the basic cycle. R 12 or freon 12 ccl 22. R717 ammonia enthalpy diagram. Point to 0 c the pressure must be increased to 43043 kpa.