Refrigerant Ph Diagram (Part 2)

The pressure-enthalpy diagram is the most common graphical tool for analysis and calculation of the heat and work transfer and performance of a refrigeration cycle. The change in pressure can be clearly illustrated on the p-h diagram. Also, both heat and work transfer of various processes can be calculated as the change of enthalpy and at easily shown on the p-h diagram.

DOWNLOAD – P-h enthalpy diagram consist of following lines:

  1. Constant pressure lines
  2. Constant enthalpy lines
  3. Saturation line
  4. Isothermal lines
  5. Isentropic lines
  6. Constant volume lines

Enthalpy “h” is along x-axis and absolute pressure “p” is along the y-axis, both expressed in logarithmic scale. The saturated liquid line separates the sub-cooled liquid from the two-phase region in which vapor and liquid refrigerants coexist. The saturated vapor line separates this two-phase region from the superheated vapor. In the two-phase region, the constant-dryness-fraction quality line subdivides the mixture of vapor and liquid. The constant-temperature lines are nearly vertical in the sub-cooled liquid region. At higher temperatures, they are curves near the saturated liquid line. In two-phase region, the constant temperature lines are horizontal. Also in the superheated region, the constant-entropy lines incline sharply upward, and constant volume lines are flatter. Both are slightly curved.

This article is a continuation of our older article, which was well received by users, so we decided to update the P-H Diagram list and provide you with a more complete list of the world's commercial refrigerants.
You can easily access the high quality refrigerant chart by clicking on the refrigerants listed in the table.
Refrigerant name PH diagram Download Thumbnail
R113 View P-H Diagram Download R113 P-H Diagram
R114 View P-H Diagram Download R114 P-H Diagram
R1150 View P-H Diagram Download R1150 P-H Diagram
R1233ZD(E) View P-H Diagram Download R1233ZD(E) P-H Diagram
R1234YF View P-H Diagram Download R1234YF P-H Diagram
R1234ZE(E) View P-H Diagram Download R1234ZE(E) P-H Diagram
R125 View P-H Diagram Download R125 P-H Diagram
R1270 View P-H Diagram Download R1270 P-H Diagram
R134A View P-H Diagram Download R134A P-H Diagram
R152A View P-H Diagram Download R152A P-H Diagram
R170 (ETHANE) View P-H Diagram Download R170 (ETHANE) P-H Diagram
R22 View P-H Diagram Download R22 P-H Diagram
R227EA View P-H Diagram Download R227EA P-H Diagram
R23 View P-H Diagram Download R23 P-H Diagram
R236FA View P-H Diagram Download R236FA P-H Diagram
R245FA View P-H Diagram Download R245FA P-H Diagram
R290 (PROPANE) View P-H Diagram Download R290 (PROPANE) P-H Diagram
R32 View P-H Diagram Download R32 P-H Diagram
R404A View P-H Diagram Download R404A P-H Diagram
R407A View P-H Diagram Download R407A P-H Diagram
R407B View P-H Diagram Download R407B P-H Diagram
R407C View P-H Diagram Download R407C P-H Diagram
R407F View P-H Diagram Download R407F P-H Diagram
R407H View P-H Diagram Download R407H P-H Diagram
R410A View P-H Diagram Download R410A P-H Diagram
R417A View P-H Diagram Download R417A P-H Diagram
R422A View P-H Diagram Download R422A P-H Diagram
R422D View P-H Diagram Download R422D P-H Diagram
R427A View P-H Diagram Download R427A P-H Diagram
R438A View P-H Diagram Download R438A P-H Diagram
R442A View P-H Diagram Download R442A P-H Diagram
R448A View P-H Diagram Download R448A P-H Diagram
R449A View P-H Diagram Download R449A P-H Diagram
R449B View P-H Diagram Download R449B P-H Diagram
R450A View P-H Diagram Download R450A P-H Diagram
R452A View P-H Diagram Download R452A P-H Diagram
R452B View P-H Diagram Download R452B P-H Diagram
R452C View P-H Diagram Download R452C P-H Diagram
R454A View P-H Diagram Download R454A P-H Diagram
R454B View P-H Diagram Download R454B P-H Diagram
R454C View P-H Diagram Download R454C P-H Diagram
R455A View P-H Diagram Download R455A P-H Diagram
R463A View P-H Diagram Download R463A P-H Diagram
R469A View P-H Diagram Download R469A P-H Diagram
R502 View P-H Diagram Download R502 P-H Diagram
R503 View P-H Diagram Download R503 P-H Diagram
R507A View P-H Diagram Download R507A P-H Diagram
R513A View P-H Diagram Download R513A P-H Diagram
R513B View P-H Diagram Download R513B P-H Diagram
R515B View P-H Diagram Download R515B P-H Diagram
R516A View P-H Diagram Download R516A P-H Diagram
R600 (BUTANE) View P-H Diagram Download R600 (BUTANE) P-H Diagram
R600A View P-H Diagram Download R600A P-H Diagram
R717 (AMMONIA) View P-H Diagram Download R717 (AMMONIA) P-H Diagram
R718 (WATER) View P-H Diagram Download R718 (WATER) P-H Diagram
R744 (CO2) View P-H Diagram Download R744 (CO2) P-H Diagram
RE170 View P-H Diagram Download RE170 P-H Diagram