CFD Engineering Services

Reticom Solutions
Measure, Monitor, Manage
2455 Wyandotte St West , Windsor, ON, Canada N9B0C1
Tel: (226) 344-7809 Fax: (519) 253-3000
www.reticom.ca mkarami@reticom.ca
COMPUTATIONAL FLUID DYNAMICS
ENGINEERING SERVICES FOR CFD PROJECTS

RETICOM SOLUTIONS www.reticom.ca mkarami@reticom.ca
INDUSTRIES
 Oil & Gas
 Power Plant
 Automotive
 Aerospace
 Renewable Energy
 Environmental
 Electronic Cooling
 Ventilation
 Biomedical
 Manufacturing
2

CFD AREAS
 Turbulence Modeling
 Large Eddy Simulations
 Heat Exchangers
 Combustion & Reacting Flows
 Multiphase Flows
 Compressible Flows
 Moving Mesh Applications
 Turbomachinery
 Mathematical Model Development
 User-Defined Functions (UDFs)
 Geometry Optimization
 Mesh Generation
 Advanced Post Processing
 Reverse Engineering
 Flow-Solid Interaction
 Aeroacoustics & Noise
3

PROJECT SAMPLES
 Duct burner design (for 20 different plants)
 Design of stand-alone HRSG (working with both gas turbine AND
fresh air)
 Burner modification for under-operation plants (7 different cases)
 High-fidelity heat transfer analysis
 Investigation of burner element performance (R&D and Reverse
Engineering)
 Conjugate heat transfer of boiler tubes
 Analysis of FAC (FlowAccelerated Corrosion) risk using CFD
simulations
 Flow distribution in headers and tubes
 Ventilation of urban traffic tunnels
 Temperature rise in human head due to cellphone
4

DUCT BURNER DESIGN
 Duct burner is installed at inlet duct of HRSG to increase the
temperature of flue gas before entering the heat exchangers.
 Challenges and Issues
 Flame stability
 Preventing reverse-flame
 Proper flame direction
 Protecting burner from hot gases
 Protecting boiler tubes from hot spots
 Limiting pressure loss if flue gas side
 Flow & temperature uniformity at the cross sections of heat
exchangers
5

DUCT BURNER DESIGN
 SAMPLE-1
 Gas turbine:SiemensV9.2
 Burner capacity: 10 MW
 # Burner Rows: 1
6

DUCT BURNER DESIGN
 SAMPLE-2
7

DUCT BURNER DESIGN
 SAMPLE-3
8

DUCT BURNER DESIGN
 SAMPLE-4
 Gas turbine:GE 9E
9

DUCT BURNER DESIGN
 SAMPLE-5
 Gas turbine:AnsaldoV94.2
 Challenges
 Heavy duty burner
 Limited space for boiler
 Need to shorten inlet duct
 Uniform temperature distribution
after burner is critical.
10

DESIGN OF STAND-ALONE HRSG
 Stand-alone HRSG is a special type of steam generator that
can produce steam either with turbine exhaust gas (TEG) or
fresh air.The design of burner and flow guide vanes is critical
due to complexity of geometry.
 Challenges and Issues (in addition to those of ordinary duct
burners)
 90-degree turning in flow direction
 Burner configuration should be robust and reliable for both TEG
and fresh air flows.
 Different design criteria for bothTEG and fresh-air firing
 More restricted limitation for gas-side pressure drop
 High capacity burner required for fresh air mode
11

 Gas turbine:Zorya UGT-25000
 Burner capacity in TEG mode: 4 MW
 Burner capacity in Fresh air mode: 44 MW
 HRSG application: Desalination
12

 Challenges
 Providing uniform flow over burners for both modes:
TEG mode and fresh air mode
13

 Challenges
 Providing uniform flow over burners for both modes:
TEG mode and fresh air mode
SideView
TopView
14

 Challenges
 Providing uniform temperature over superheater tubes
 Appropriate flame direction
15

BURNER MODIFICATION FOR UNDER-OPERATION PLANTS
 SAMPLE-1
 Detection and removing huge recirculation zone
around the highest row of a 4-row burner
Recirculation Zone
16

 SAMPLE-1
 Detection and removing huge recirculation zone
around the highest row of a 4-row burner
Reverse Flame Region
17

Before
Modification
After
Modification
Hot spot on burner
Recirculation Zone
 SAMPLE-2
 Detection and removing
partial reverse-flame region
on the top of burner
18

Before
Modification
After
Modification
 SAMPLE-3
 Detection and removing partial reverse-flame
region on the top of burner
 Modification of flow direction by easily-done
suggestion
19

HIGH-FIDELITY HEAT TRANSFER ANALYSIS
 An INOVATIVE approach to implement heat exchanger
concept in CFD solver to reach the EXACT distribution of
temperature for metal and water/steam with reasonable
computational cost
 Reduction of design risk
 Reduction of unnecessary margins
 Better estimation of metal temperature
 Detecting and removing local hot-spots
 Accuracy in computing thermal stresses
20

 It is impossible to model all finned tubes of
heat exchangers in CFD simulation due to
the limitations in computational sources. By
applying high-fidelity approach, the
distribution of temperature for fin and tubes
will be estimated accurately.
 Useful to study heat transfer behavior of
flow with high degree of non-uniformity in
velocity and temperature
 Applicable to estimate the thermal
performance of furnaces with complex tube
arrangement
Temperature Distribution of
Flue Gas at the Cross
Section
21

FinTipTemperatureTube MetalTemperatureSteamTemperature
22

INVESTIGATION OF BURNER ELEMENT PERFORMANCE
 An R&D project to evaluate different burners in
variety of operating conditions and estimate their
performance according to following terms:
 Flame Stability
 Burner capacity
 Aerodynamics
 Flame shape & length
 Protection of burner material
against flame temperature
23

24

 Aerodynamics of bluff-body
configurations
 Temperature distribution on
burner metal
 Flame stability
 Mixing performance
25

 Flame shape
 Flame length
 Temperature distribution
downstream the burner
26

CONJUGATE HEAT TRANSFER OF BOILER TUBES
 Combination of conduction/convection heat
transfer
 Transient heat transfer in tubes & headers
 Stress analysis of pressure parts
27

ANALYSIS OF FAC RISK USING CFD SIMULATIONS
 Investigation of FAC (Flow Accelerated Corrosion)
risk in tubes regarding the water chemistry,
temperature and flow
 Calculation of fluid velocity in all branches for all
operating conditions to be sure about meeting the
criteria
 Performing CFD to find out possible regions which
are locally susceptible to FAC
28

FLOW DISTRIBUTION IN HEADERS AND TUBES
 CFD simulation of water/steam distribution in
boiler headers and tubes
 Consideration of variable heat absorption in
different tubes
 Modification of tube arrangement to reach
required flow homogeneity
29

VENTILATION OF URBAN TRAFFIC TUNNELS
30
 CFD simulation of pollutant
dispersion in urban traffic
tunnel
 Design and Optimization of
ventilation system

VENTILATION OF URBAN TRAFFIC TUNNELS
 Evaluation of different ventilation system
design to reach the maximum efficiency
31

TEMPERATURE RISE IN HUMAN HEAD DUE TO CELLPHONE
 Simulation of cell-phone electromagnetic waves effects on the
temperature rise in brain
 Evaluation of SAR in human head
 Engaging Pennes’ bioheat transfer equation to calculate the
temperature distribution inside human head due to the electromagnetic
waves of cellphone
32

RETICOM SOLUTIONS www.reticom.ca info@reticom.ca
Reticom Solutions
Measure, Monitor, Manage
2455 Wyandotte St West , Windsor, ON, Canada N9B0C1
Tel: (226) 344-7809 Fax: (519) 253-3000

CFD Engineering Services

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Similar to CFD Engineering Services

Similar to CFD Engineering Services (20)

Recently uploaded

Recently uploaded (20)

CFD Engineering Services