andreeeea
Industrial
- Apr 21, 2017
- 3
Hello,
I'm having some trouble with this problem. Does anybody can help me, please?
Request:
Calculate Kv (range) of a valve that has to be used to have a constant depressurization of a vessel with supercritical Co2 inside. The vent is in atmosphere.
Hypothesis:
Initial Pressure: 120 bar
Temperature: 40 °C constant (heater)
Volume vessel: 10 liters = 0.01 m^3
- What Kv formula should I use for supercritical fluid?
- If I would obtain a constant depressurization (e.g. 4 bar/min), is volumetric flow constant in all the process, right?
depressurization time = 120 bar/(4bar/min) = 30 min = 0.5 h
volumetric flow = volume (constant)/time = 0.01/0.5 = 0.02 m^3/h
- Does mass flow change because pressure change so density change, isn't it?
I'm having some trouble with this problem. Does anybody can help me, please?
Request:
Calculate Kv (range) of a valve that has to be used to have a constant depressurization of a vessel with supercritical Co2 inside. The vent is in atmosphere.
Hypothesis:
Initial Pressure: 120 bar
Temperature: 40 °C constant (heater)
Volume vessel: 10 liters = 0.01 m^3
- What Kv formula should I use for supercritical fluid?
- If I would obtain a constant depressurization (e.g. 4 bar/min), is volumetric flow constant in all the process, right?
depressurization time = 120 bar/(4bar/min) = 30 min = 0.5 h
volumetric flow = volume (constant)/time = 0.01/0.5 = 0.02 m^3/h
- Does mass flow change because pressure change so density change, isn't it?