gas turbine
FUEL FLEXIBLE COMBUSTION SYSTEM MODELLING WITH ZERO CARBON FUEL
This case study showcases an innovative approach to designing a fuel-flexible hydrogen combustion system…
CASE STUDIES
nuclear
COMPARISON BETWEEN FLOWNEX® SE AND EXPERIMENTAL DATA FOR A TRANSIENT WATER HAMMER EVENT
This case study will describe how Flownex® was used to model a water hammer event in a pipe…
hydrogen
ALKALINE WATER ELECTROLYSIS
McPhy Energy Germany GmbH designs, develops, manufactures and sells technical systems and components for energy…
hvac
AIR CONDITIONING DISTRIBUTION
This case study demonstrates the capability of Flownex® to balance air distribution systems by determining the orifice sizes or damper opening…
industrial process
INVESTIGATING STEAM BOILER FLOW CIRCULATION
Flownex® was used to investigate the flow distribution for a new generation John-Thomson MicroGen Boiler as steam circulation…
gas turbine
COMPARISON BETWEEN FLOWNEX® SE AND 3-D CFD FOR SECONDARY FLOW MODELLING IN TURBOMACHINERY
This case study demonstrates the capability of using Flownex® SE as a preliminary design tool for secondary flow analysis before using…
power generation
MAINTENANCE EFFECTIVENESS COMPARISON FOR A HALF STATION SHUTDOWN OUTAGE
This case study demonstrates how Flownex® can be used in evaluating the effectiveness of the maintenance work conducted during…
power generation
TURBINE PROTECTION – TWO PHASE FLOW REGIMES
The main challenge explored in this case study is root cause analysis of dynamically hazardous movements in the distillate lines to…
hvac
VAPOUR COMPRESSION REFRIGERATION SYSTEM
This case study demonstrates the modeling of a vapour compression refrigeration system using R22 as refrigerant. Both a steady-state…
power generation
USING FLOWNEX AS A TOOL TO DEVELOP NEW ENGINEERING METHODS AND CORRELATIONS FOR STEAM TURBINE PERFORMANCE PREDICTION
This case study demonstrates the ability of Flownex® to be used as a tool to develop, test and implement new correlations and methods…
power generation
RECOVERING GENERATION LOSSES DUE TO FAULTY AIR HEATER OPERATION
Faulty systems operation results in significant power generation losses. The purpose of this case study is to communicate a case where…
oil and gas
PRESSURE PIPING THICKNESS AND FLANGE RATING CALCULATION
This case study demonstrates the use of a script and a Generic 4D chart to enable Flownex® to calculate standards-compliant wall…
oil and gas
FIRED HEATER DESIGN
This case study demonstrates the implementation of an API 560 fired heater compound component in Flownex®. It also shows how…
oil and gas
NATURAL GAS COMBUSTION MODELLING
This case study demonstrates the use of Flownex® to model and analyse a natural gas combustion process. Several compound components…
oil and gas
COALESCING FILTER SIZING AND LIFE CYCLE ANALYSIS USING RATED AND SPECIFIED PRESSURE LOSS COMPONENTS
This case study discusses the sizing of a coalescer filter and demonstrates its fouling life cycle analysis using a Flownex® model…
oil and gas
BASIC IMMERSION FIRETUBE MODEL
This case study demonstrates the implementation of a basic immersion fire-tube model in Flownex and presents natural draft and forced draft examples.
oil and gas
ECONOMIC PIPE SIZING USING THE GENERAUX EQUATION
This case study investigates a pipe sizing method based on an implementation of the Generaux Equation. This method aims to…
oil and gas
A SIMPLE BARE TUBE CROSS FLOW RECUPERATOR FLOWNEX MODEL
This case study demonstrates the use of Flownex® to model simple recuperators using bare tubes in cross flow.
oil and gas
FOULING FACTORS IN FLOWNEX® HEAT TRANSFER MODELS
This case study demonstrates the implementation of two methods to account for thermal fouling factors in heat transfer piping and tubing in a…
oil and gas
EXTERNAL HEAT TRANSFER PIPE
This case study demonstrates the implementation of a compound element with external surface heat transfer to or from an external fluid…
oil and gas
THE SIZING OF PRESSURE CONTROL AND PRESSURE SAFETY VALVES INCLUDING REACTION FORCE CALCULATION
This case study demonstrates the use of Flownex® to size properly performing pressure control valves for typical plant operation and to size and…
oil and gas
FLOW MEASUREMENT ORIFICES PLATE SIZING AND UNCERTAINTY ANALYSIS
This case study demonstrates the use of some of Flownex’s power features – the Designer and the Sensitivity Analysis capability – during the design…
nuclear
HIGH TEMPERATURE GAS COOLED REACTOR STARTUP
The HTGR is one of the most promising reactor concepts of the Nuclear Renaissance, offering advantages such as improved safety and…
nuclear
A CLOSED THREE-SHAFT RECUPERATIVE BRAYTON CYCLE
The case study demonstrates a load following transient simulation of the Pebble Bed Micro model (PBMM). The PBMM…
general
SHELL & TUBE HEAT EXCHANGER – STEADY STATE
This case study demonstrates the steady-state thermal fluid simulation of a shell and tube heat exchanger. The shell and tube heat exchanger…
industrial process
CONTROL OF FLOWNEX® NETWORK USING SIMULINK (2016)
This case study demonstrates how Flownex® and Simulink are integrated to perform different parts of a simulation. Integration of…
nuclear
INSULATION FLOW BALANCING
This case study investigates the balancing of forced flow through a perforated flow distribution manifold situated between the thermal…
general
CAPILLARY TUBE
This case study demonstrates the modeling of a capillary tube. Capillary tubes are used as expansion devices on some vapor-compression…
nuclear
REACTOR CAVITY COOLING
This case study demonstrates the investigation into the operating characteristics of a Reactor Cavity Cooling System (RCCS) during…
nuclear
COMBINED CYCLE POWER PLANT
This case study demonstrates the modeling of a Combined Cycle (CC) power plant of a High Temperature Gas-Cooled Reactor (HTGR).
nuclear
HIGH TEMPERATURE GAS COOLED REACTOR POWER CYCLE
This case study demonstrates the steady-state simulation of a High Temperature Gas-Cooled Reactor (HTGC) nuclear power plant (NPP)…
industrial process
RESIDENTIAL WATER DISTRIBUTION
This case study demonstrates the steady-state simulation of the fresh water (drinking water) reticulation system in a small village.
mining
CHILLED WATER DISTRIBUTION
This case study demonstrates Flownex’s ability to predict the temperature rise in chilled water networks due to gravitational effects…
general
RADIATOR FLOW BALANCING
This case study demonstrates the capability of Flownex® to determine the orifice sizes required to ensure balanced flow in several parallel…
nuclear
FLOW BALANCING
The objective of the simulation is to model the flow rates through the respective distribution holes of the inlet manifold. This was required…
academic
NATURAL CONVECTION
This case study demonstrates the capability of Flownex® to simulate natural convection (buoyancy driven flow). This is done by demonstrating…
industrial process
WATER HAMMER
This case study demonstrates the capability of Flownex® to simulate the water hammer effect by simulating the sudden closure…
mining
MINE VENTILATION
This case study demonstrates the steady-state simulation of a compressed air network used in the mining industry.
oil and gas
NATURAL EXHAUST DRAFT STACK
This case study demonstrates the use of Flownex® to model a natural draft exhaust stack such as those typically used in natural gas…
mining
BLOW-OFF TEST VALVE ANALYSIS
A blow-off test to determine compressor performance during part load conditions is required at a newly built compressor plant…
nuclear
SAVANNAH RIVER REMEDIATION
Savannah River Remediation (SRR) is a consortium of companies led by URS Corporation. It holds the Liquid Waste Operations contract at…
power generation
GENERATOR SEAL OIL SYSTEM
Eskom power utility utilized Flownex® SE simulation capabilities to mitigate system shutdowns caused by Generator Hydrogen (H2) Seal ring failures…
gas turbine
GAS TURBINE COMBUSTOR DESIGN
Application of the network approach to the modeling of three combustor types, i.e. two annular- and a reverse flow combustor, is discussed in this…
mining
COMPRESSOR OPTIMISATION
This case study reviews an AngloGold Ashanti project which facilitated a saving of 2.5 MW by using Flownex® to optimize compressor and piping…
power generation
BOILER TUBE FAILURE THERMOHYDRAULIC ANALYSIS
The boiler hopper tubes at an Eskom Power Station suffer from continuous mechanical failures that lead to frequent unplanned maintenance…
power generation
BOILER HEADER CRACKING
As part of the repowering of a power station Steinmüller is tasked with the optimization of the boiler sub-system. This included a study to determine…
power generation
BOILER STEAM FLOW DISTRIBUTION
The evaporative platens gave many operational issues including header cracking causing unnecessary and costly down time due to…
mining
A LOCAL UNDERGROUND AIR-COOLING UNIT
Flownex® enabled M-Tech to penetrate the market by convincing clients of the economic benefit associated with the Air Cooling Units…
nuclear
THE INTERACTION BETWEEN GAS AND PARTICLES
In this case study the endless possibilities within Flownex® are highlighted by the application of user coding and the versatility it…
general
FINNED TUBE HEAT EXCHANGER – TRANSIENT
This case study demonstrates the transient thermal fluid simulation of a finned tube heat exchanger. The finned tube heat exchanger model…
gas turbine
MID-AIR REFUELING OF A MIRAGE F1 FIGHTER
Re-engining of a Mirage F1 Fighter required modification of the existing aircraft refueling system. Aerosud…
oil and gas
FIRED HEATER PROCESS GAS
A client in the petrochemical industry sought help with regards to a fired heater employed on a plant. The client wished to perform thermal…
general
LARGE RETICULATION NETWORK
The basic challenges faced by Midvaal Water Company were to determine the current status of the very old existing reticulation network…
power generation
FUEL OIL DISTRIBUTION
Steinmüller used Flownex® to simulate a fuel oil distribution network. The Flownex® models served as a comparison study between the current…
nuclear
FLOW & HEAT TRANSFER IN A PACKED BED – TRANSIENT
This case study demonstrates the transient simulation of the heat transfer through a packed bed with no forced convection. This case study…
nuclear
FLOW & HEAT TRANSFER IN A PACKED BED – STEADY STATE
This case study demonstrates the steady-state simulation of the heat transfer through a packed pebble bed. Of particular importance…
mining
CHILLER PLANT CONTROL
This case study demonstrates the control of a three stage chiller plant that cools water in a primary loop, which feeds into a secondary…
power generation
REGULATOR TEMPERATURE ANALYSIS
Pressure regulators are to be employed at a gas-fired power station to reduce upstream gas pressures from a maximum of 15 MPa to approximately…
general
GI-GABRIEL AUTOMOTIVE WASHING
During the manufacturing process, tubular parts are machined and welding is performed on these parts. Before these components can be…