The document discusses the utilities in Aspen HYSYS, describing them as tools that provide information or analysis of processes and become a part of the flowsheet. It outlines methods for adding utilities and presents a case study involving the calculation of critical properties and the plotting of a pressure-enthalpy envelope for a mixture of hydrocarbons. Specific stream composition and conditions are provided for the analysis.

1. Supported by:
Aspen HYSYS Training
Module 5: Utilities
Tutor:
M. Ersharry Yunashtanto
Zayyanatun Zulfa
Ikha Muliawati
Mada Harahap

2. • The utilities are a set of tools, which interact with a process by
providing additional information or analysis of streams or operations.
• In HYSYS, utilities become a permanent part of the flowsheet and are
calculated automatically when appropriate.
• Utilities can also be used as target objects for “Adjust” operations.
Utilities in Aspen HYSYS

3. How to Add Utility? (1st Method)

4. How to Add Utility? (2nd Method)

5. Critical Properties

6. Envelope Utility

7. • Find the critical properties and plot the PH (pressure-enthalpy) envelope
phase of a stream with condition as below:
Study Case
Components Composition
(Mole Fractions)
Methane 0.05
Ethane 0.08
Propane 0.11
i-Butane 0.12
n-Butane 0.14
i-Pentane 0.15
n-Pentane 0.17
n-Hexane 0.18
Conditions Value
Temperature (C) 27
Pressure (atm) 1
Fluid Package Peng-Robinson

8. Thank You
M. Ersharry Yunashtanto
Zayyanatun Zulfa
Ikha Muliawati
Mada Harahap