Steam_VPTL
- Last UpdatedJan 11, 2023
- 1 minute read
- PI System
- PI Server 2024 R2
- PI Server
Calculate the liquid specific volume as a function of pressure (P in kPa) and temperature (T in °C). For any T higher than the saturation temperature for P, the function returns an out-of-range error. The function accepts any T in the temperature range as long as P is greater than the critical pressure. By default, input arguments and returned values are in SI units. You can change the units of measure, for example, by using the Convert function.
Syntax
Steam_VPTL(P, T)
Arguments
-
P
Pressure of the steam. P can range from 0.611212678 to 100000 kPa.
-
T
Temperature of the steam. T can range from 0.0 to 800 °C.
Returns
Computed liquid specific volume in cm3/g
Example
-
Steam_VPTL(75000, 500)
[Returns 2.308 cm3/g]