PRDesign™ is a Windows-based system that performs emergency pressure relief system design. Based upon user-input specifications, PRDesign™ rigorously designs or rates pressure relief valves, rupture disks and the associated inlet and outlet piping.

PRDesign™ uses API RP 520, 521 and DIERS methods. It calculates two-phase relief flow as well as single-phase relief flow using a rigorous integration of the Bernoulli Equation. The package uses the homogeneous equilibrium model (HEM) for two-phase fluid flow.

We have included ASPENPCD and DIPPR databanks for pure component data in PRDesign™. Mixtures are handled with the rigorous methods available in the PRO Aspen/PC physical property system.

Since PRDesign™ is completely Windows based, it has a very user-friendly point and click front end. It runs quickly and is specific to the pressure relief design and rating problem.

TECHNICAL CAPABILITIES

• Design of new relief system
• Rating of existing relief systems
• Accounts for relief system inlet and outlet piping pressure loss
• Single-phase relieving fluid capability - API Methods
• Two-phase relieving fluid capability - DIERS Methods
• Rigorous integration of Bernoulli's Equation
• Follows API RP 520 and 521
• Rigorous thermodynamic and physical-property calculation methods
• Equations of State
• Activity coefficient models
• DIPPR and ASPENPCD databanks for pure component properties
• Allows user specification of physical property parameters
• Multiple relief cases in a single file
• Rupture disk, relief valve and combination (rupture disk + relief valve)

GRAPHICAL USER INTERFACE

• Intuitive visual navigator user interface
• Comprehensive online context-sensitive Help system
• Full-featured Windows input and results dialogs
• Supports proprietary piping components databases
• Easy user specification of fluids and thermodynamic methods
• Results available in database format
• Print preview for all reports

SYSTEM REQUIREMENTS

ThermoFlash™ is a PC Windows-based system that performs phase equilibrium and physical property calculations. Based on user-input specifications, ThermoFlash™ performs thermodynamic equilibrium calculations and determines thermal and transport property values. The calculations are applicable to pure components and mixtures.

We have included ASPENPCD and AIChE DIPPR 11.0 databanks for pure component physical property data in ThermoFlash™. Mixtures and phase equilibrium calculations are handled with the rigorous methods available in the PRO Aspen/PC™ physical property system. These methods include the Peng-Robinson and Soave-Redlich-Kwong equations of state and the Wilson and UNIQUAC activity coefficient correlations. Users can easily add any proprietary physical property parameters as needed or rely on the built-in data bank parameter values.

Since ThermoFlash™ is Windows based, it has a very user-friendly point and click graphical user interface. Help is available on line in ThermoFlash™. The program runs quickly and provides an easy to use rigorous physical property calculation method.

TECHNICAL CAPABILITIES

• Rigorous thermodynamic and physical property calculation methods
• Peng-Robinson and Soave Redlich-Kwong Equations of State
• UNIQUAC and Wilson Activity Coefficient Models
• Several transport property correlations are available
• Computation of physical property values as functions of temperature, pressure and composition
• Results available in tables and graphs
• Robust industry standard flash algorithm
• Pure component and mixture equilibrium, thermal properties and transport properties are computed
• DIPPR and ASPENPCD databanks for pure component properties (more than 1500 compounds) are available and automatically retrieved
• Allows user override of physical property parameters if proprietary information is available
• Phase diagrams, property tables and graphs

GRAPHICAL USER INTERFACE

• Intuitive visual navigator user interface
• Comprehensive online context-sensitive Help system
• Full-featured Windows input and results dialogs
• Supports interfaces to proprietary physical property data banks
• Easy user specification of fluids and thermodynamic methods
• Results available in database format to allow interface with proprietary corporate database systems
• Print preview for all reports

SYSTEM REQUIREMENTS

• Windows XP operating system. (Also Windows 2000, 98, and 95)
• 32 MByte RAM minimum (or higher recommended for faster calculations)
• 10 MByte hard drive space required

2-ø Flow™ is PC Windows-based software that performs process plant piping calculations for two-phase flow conditions. Based on user-input specifications, 2-ø Flow™ performs flow pattern calculations and determines pressure drop or line diameter.

The calculations are applicable to design of new lines and rating of existing lines. Several flow patterns and pressure drop correlations are available. The software is applicable to horizontal, inclined, or vertical upflow piping.

2-ø Flow™ is Windows based and has a user-friendly point and click graphical user interface. Help is available on line in 2-ø Flow™. The program runs quickly and provides an easy to use and systematic approach to two-phase flow calculations for industrial applications.

TECHNICAL CAPABILITIES

• Several general flow pattern correlation methods
• Several general pressure drop methods
• Applicable to horizontal line calculations
• Applicable to inclined and vertical upflow line calculations
• Built-in fittings data
• Allows user specified losses - velocity heads and equivalent lengths

GRAPHICAL USER INTERFACE

• Intuitive user interface
• Comprehensive online context-sensitive Help system
• Full-featured Windows input and results dialogs
• Variety of detailed reports

SYSTEM REQUIREMENTS

• Windows XP operating system. (Also Windows 2000, 98, and 95)
• 32 MByte RAM minimum (or higher, recommended for faster calculations)
• 10 MByte hard drive space required

Services Available