Ordinary Vapor Compression (OVC) Cycle for Refrigerant R-134a
Ordinary Vapor Compression (OVC) Cycle for Refrigerant R-134a
Pressure-enthalpy (-) and temperature-entropy (-) diagrams for refrigerant R-134a are used to demonstrate the ordinary vapor compression (OVC) cycle. You can vary the condenser pressure (high pressure) and the evaporator pressure (low pressure); the coefficient of performance () is calculated for the cycle. The is the ratio of heat transferred from the cold reservoir to the work required to compress the gas in the compressor; a high value is desirable. Selecting "cycle" from the drop-down menu shows the components of the cycle, and moving the mouse over the circled numbers 1–4 on the cycle view displays the phases present at those points.
P
H
T
S
COP
COP
Q
C
W