Week 1 Challenge
Week 1 Challenge
Composition
- Propane – 0.3 mass%
- n-Pentane – 0.2%
- Hexane – 0.2%
- Heptane – 0.2%
- Octane – Determine the mass
1. Using the above composition generate phase envelope for the stream under following conditions
- Pressure – 5barg
- Temperature – 45°C
The resulted phase envelope at the mentioned conditions is given below.
2. Using the above composition determine the bubble (boiling point) temperature of the stream at 6 barg pressure. Determine the boiling pressure at 100°C
- The Bubble point temperature at the given conditions (6 barg P & vapour fraction of 0) is 45.65 °C
- The boiling pressure at 100°C and vapour fraction of 1 is 226.4 kPa.
3. If the required vapour standard gas flow rate is 3 MMSCFD (use stream conditions as in S. No -1) determine the corresponding mass flow rate of the stream.
- The mass flowrate of the stream at the standard gas flow rate of 3 MMSCFD is 1.034*104 kg/hr
4. If the required actual volumetric rate of vapour at 5 barg pressure and 50°C is 20 m3/hr (stream conditions as in S. No – 1), determine the corresponding mass flow rate.
- The mass flowrate of the at the specified conditions is 1757 kg/hr
5. Stream A has the following conditions
a. Composition
Methane – 0.1 mol %
Ethane – 0.2 mol %
Pentane – 0.5 mol %
Hexane – 0.2 mol%
b. Pressure – 5 barg
c. Temperature – 45°C
d. Flow rate – 5000 kg/hr
Stream B has the following conditions
a. Composition
Methane – 0.1 mol %
Pentane – 0.2 mol %
Hexane – 0.5 mol %
Nonane – 0.2 mol%
b. Pressure – 3 barg
c. Temperature – 80°C
Determine stream B flow rate such that the mixture stream actual volumetric rate is 125 m 3 /hr. Determine the mixture density and mixture viscosity.
i) Mass flow rate of stream B?
The mass flow rate of stream B is 8323 kg/h
ii) Mixture density and viscosity?
Mixture Density is 38.32 kg/m3 (vapour phase 6.413 kg/m3, liquid phase 617.8 kg/m3)
Mixture viscosity (vapour phase 1.053*10-2Pa.s, liquid phase 0.2154 Pa.s)