Aspen FLARENET™

Software for the design, rating, and debottlenecking of flare and vent systems

Aspen FLARENET enables engineers to perform steady-state design, rating, or debottlenecking of single or multiple flare and vent systems. The program can calculate minimum sizes for new flare systems or evaluate alternatives to remove bottlenecks in existing relief networks. Aspen FLARENET can also be used to identify potentially dangerous relief scenarios during design phase or current operational scenarios. Aspen FLARENET is a core element of AspenTech’s aspenONE™ Process Engineering applications.

Features

  • Enhanced PFD-style graphical user interface displays network drawing, key process variables, and annotations displaying pressure, mass flow, mach number, and noise
  • Ability to import stream data input directly from Aspen HYSYS® or Aspen Plus®
  • Modeling of flare or vent systems, including convergent, divergent, and complex looped systems; modeling of single and multiphase systems; and support of rating, design, and debottlenecking calculation modes
  • Detailed unit operations for modeling sources, pressure drop elements, and sinks
  • Design constraints on any combination of allowable back pressure, mach number, phase velocity, RhoV2, or noise
  • Optional use of rated flow for pressure drops in tail pipes for calculations in accordance with API RP 521
  • Heat transfer calculator for pipes (external heat transfer from the surroundings calculated from ambient conditions with or without insulation)
  • PSV sizing to API standards, including Leung Omega (DIERS) method for multiphase systems
  • User-defined pressure drop curves for flare tips
  • A wide selection of reports (including Design Violation Report, summarizing all cases where the design constraints have been exceeded)
  • Enhanced thermodynamic engine using the same three-phase flash algorithm as Aspen HYSYS for a fast and robust solution
  • Multiple fluid flow/pressure drop methods supported, including isothermal and adiabatic gas, Beggs & Brill, Dukler, and Lockheart Martinelli
  • Rigorous multiphase choking calculations formation
  • Extensive pipe fittings database

Benefits

Engineers may use Aspen FLARENET to efficiently model complete process plant protection systems designed to handle the complete range of pressurized fluids from the process. The intuitive and graphically orientated layout enables entire systems to be modeled in minimum project time, allowing:

  • Verification of the engineering specifications for all system devices
  • Confirmation of current configuration and pipe sizes
  • Management of all relief scenarios
  • Checking of piping for all relief scenarios
  • Total system performance checking
  • Sizing new flare system to API standards
  • Production of detailed operating and performance package of the plant flare system
  • Regulatory compliance to API recommended practices
  • Reduction in engineering man-hours on flare system design by up to 65%

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