FRNC-5PC

FRNC-5PC is a rating program for general purpose fired heaters. Based on user-supplied heater geometry, combustion data, and process information, the program calculates operating parameters such as firing rate, heater efficiency, tube skin temperatures and required tube thicknesses, gas-side temperatures and draft, process temperatures, pressure drop and flow regimes, heat duties and fluxes, and much more.

FRNC-5PC simulates entire radiant sections of most heater types, coil configurations, tube and fin types, ducting, stacks, and external transfer lines. FRNC-5PC can simulate the heat recovery sections of all types of furnaces, boilers and turbines.

FRNC-5PC has a user-friendly graphical input system and multiple, user-controlled output options, such as heater data sheets, graphical output, spreadsheet output and tabular output. The input system contains on-line help and input limit and error checking.

Following are some of the many uses of FRNC-5PC:

• Reduce Heater Operating Costs
  • Lower heater fuel consumption
  • Evaluate air leakage, air preheaters and heat recovery coils
• Increase Heater Capacity
  • Identify thermal, hydraulic and draft limits
  • Model process controls
  • Minimize excess air for NOx control
• Evaluate Process Changes
  • Stream rates, temperatures and compositions
  • Steam injection
  • Process stream flow regimes and vaporization
  • HAZOPS and Process Safety Management reviews
• Check New Heater Designs
  • Optimize capital expenditures
  • Determine firebox and overall heater efficiencies
  • Evaluate most boiler types
• Minimize Unplanned Shutdowns
  • Provide detailed tube skin temperature and tubewall thickness profiles
  • Evaluate fouling and coking effects
  • Train engineers to troubleshoot heaters

User Interface

Firebox Data

Coil Section Data

Steam/Water Injection

Hydrocarbon Mixture

Firing Conditions

Schematics

Output Spreadsheets

Plots

Plots