Embed Size (px)
Citation preview
Flownex®, a 1-Dimensional thermal fluid systems tool is the leading software for modeling Heat Recovery Steam Generators (HRSG's) and boilers, additionally utilized for rapid and precise
steady-state and transient simulations.
HEAT RECOVERY STEAM GENERATOR& BOILER APPLICATIONS
www.flownex.com [email protected]
www.flownex.com [email protected]
APPLICATIONS
HP steamto turbine
Superheater Natural boilercirculation
Economiser
HP steamdrum
Feed
water
Flue g
as st
ack
Gen HP LP
Hot gas
HRSG & BOILER SIMULATIONS
Evaluation of off-design or accident scenarios.Evaluation of temperature gradient during start-up.Evaluation of start-up, shut down and load changes.Flow stability analysis.Flow distribution.Balancing of flow in parallel paths.
Determine rates of change in material temperatures.Evaluate control philosophy.Determine plant power ramp rates.
TRANSIENT ANALYSIS
Analysis of natural circulation boiling sections.Modeling and design of the heat transfer between the gas and steam side of a heat exchanger.Modeling of the complete system, including super-heaters, economizers, evaporators, pumps, turbines, etc.Adaptable modeling approach accor- ding to the required level of detail.Assists in proper and economical design for the expected operational conditions.
Steady-state designDetection of unwanted operating conditions involving:Boiling oscillations.Departure of Nucleate Boiling (DNB).
HP steamto turbine
Superheater Naturalcirculation boiler
Economizer
HP steamdrum
Feed
water
Flue g
as st
ack
Hot gas
VOID FRACTION HEAT TRANSFER COEFFICIENT TOTAL TEMPERATURE
Natural circulationboiler section
T
M
P
GENERAL - WATERFLOW REGIME - VERTICAL PIPE
