Vapour pressure table for refrigerant R134a |
The vapour pressure table for each refrigerant is published in the literature for refrigeration engineers. This table shows the vapour pressure exerted on the liquid column in the container for a given temperature of the container. |
Since a characteristic vapour pressure table is known for every refrigerant, one can determine what refrigerant is present by measuring pressure and temperature. |
Note Absolute pressure means that 0 bar corresponds to an absolute vacuum. The normal ambient pressure (positive pressure) corresponds to 1 bar absolute pressure. In general, most manometer scales represent atmospheric pressure as 0 bar, meaning an absolute pressure of 1 bar (this can be recognized if there is a -1 on the scale). |
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