39 how to read pressure enthalpy diagram
PDF Pressure-Enthalpy chart, R-134a (1,1,1,2-tetrafluoroethane) tecquipment.com. Pressure-Enthalpy chart, R-134a(1,1,1,2-tetrafluoroethane) Enthalpy (kJ/Kg) Pressure (Bar) Pressure (MPa) Produced by TecQuipment's VDAS®system. loo 10 loo 200 50 40 OC 30 oc 20 oc co 400 400 Craticû Point 90 oc 80"oc' o 009 0. Reading Pressure from ln P-H diagram Reading Pressure from ln P-H diagram. Since this is a ln Pressure-Enthalpy graph, the natural logarithm of pressure is marked on the y-axis. Then, any horizontal line is an isobaric (equal pressure) line. Previous: The Lever Rule ------- Next: Reading Enthalpy.
Pressure / Enthalpy Diagram Example - HVAC School On the right-hand side of the PE diagram, you have a specific volume, which is represented as curved dotted lines. As SST decreases, the specific volume increases and vapor density decreases. This fact alone is why refrigeration compressors need to be physically larger. As specific volume increases, the volumetric e...