02_Anagnostopoulos
-
Upload
fabrizzio-valer -
Category
Documents
-
view
214 -
download
0
description
Transcript of 02_Anagnostopoulos
-
Development and laboratory testing of Development and laboratory testing of
improved Action and Matrix hydro improved Action and Matrix hydro
turbines designed by advanced analysis turbines designed by advanced analysis turbines designed by advanced analysis turbines designed by advanced analysis
and optimization toolsand optimization tools
77thth Framework Programme: ENERGYFramework Programme: ENERGY
ESHA Hydroaction Seminar, Brussels, April 13, 2011ESHA Hydroaction Seminar, Brussels, April 13, 2011
-
Participants and Key topics
Development of innovative design methodologythat can be easily customized at affordablemanufacturing costs for SME manufacturers
Identify current needs of SHP manufacturesfor the new design methodology
National Technical University of Athens, Greece (Coordinator)
Institut Polytechnique de Grenoble, France
ANDRITZ Hydro GmbH, AustriaANDRITZ Hydro GmbH, Switzerland
for the new design methodology
Application in three different turbine types:Pelton, Turgo and Matrix.
Assessment of economic and environmentalimpacts - Market penetration strategy
Training for engineers and workshops to informSMEs about possibilities of new design approachcole Centrale de
Lyon, France
Techniques Hydro Electriques, France
European Small Hydropower Association (ESHA), Belgium
WIP Renewable Energies GmbH, Germany
-
Research Platform
Advanced and new parameterization and Advanced and new parameterization and Advanced and new parameterization and Advanced and new parameterization and flow analysis methods (CFD Eulerian and flow analysis methods (CFD Eulerian and flow analysis methods (CFD Eulerian and flow analysis methods (CFD Eulerian and Lagrangian)Lagrangian)Lagrangian)Lagrangian)
Modern optimization framework (parallel, Modern optimization framework (parallel, Modern optimization framework (parallel, Modern optimization framework (parallel, multilevel evolutionary algorithms multilevel evolutionary algorithms multilevel evolutionary algorithms multilevel evolutionary algorithms ---- EASY, EASY, EASY, EASY, metamodels, artificial intelligence ).metamodels, artificial intelligence ).metamodels, artificial intelligence ).metamodels, artificial intelligence ).
Turgo runner Turgo runner
designdesignPelton buckets Pelton buckets
optimizationoptimization
metamodels, artificial intelligence ).metamodels, artificial intelligence ).metamodels, artificial intelligence ).metamodels, artificial intelligence ).
Exploitation of experience accumulated Exploitation of experience accumulated Exploitation of experience accumulated Exploitation of experience accumulated during years of small hydraulic turbines during years of small hydraulic turbines during years of small hydraulic turbines during years of small hydraulic turbines production.production.production.production.
Manufacturing of prototype turbine models Manufacturing of prototype turbine models Manufacturing of prototype turbine models Manufacturing of prototype turbine models and experimental analysis/verification of optimal and experimental analysis/verification of optimal and experimental analysis/verification of optimal and experimental analysis/verification of optimal designsdesignsdesignsdesigns
Matrix Matrix
runner runner
designdesign
Distribution Distribution
section and section and
injector injector
designdesign
-
Mapping the small-hydro sector in the EU
Main objectivesMain objectives
-
Mapping the small-hydro sector in the EU
-
Parallel CFD & Optimization Unit, NTUA
-
The EASY Platform
EASY: Evolutionary Algorithms SYstem
Enriched & customized for the
needs of the Hydroaction Project
-
The EASY Platform
Three-layer middleware:
1. Local resource management S/W: CONDOR.
Grid Computing or Robots-based Optimization
Metamodel-assisted EasThe Inexact Pre-Evaluation (IPE) Scheme
2. Grid deployment: GLOBUS Toolkit 4. Discovery and monitoring of resources: GANGLIA.
3. Exploitation of resources: GRIDWAY.
-
Multilevel optimization
-
EASY Applications
A. Hydraulic turbomachinery
B. B. Other areas
-
Water tank of 320 mWater tank of 320 m33
Lab. of Hydraulic Turbomachines, NTUA
-
Control board with real time Control board with real time monitoring and analysis of monitoring and analysis of measurements (LabView)measurements (LabView)
Lab. of Hydraulic Turbomachines
-
LHT - Software
0 0.01 0.02 0.03 0.04 0.05
Flow rate parameter,
0.4
0.5
0.6
0.7
0.8
0.9
T
u
r
b
i
n
e
e
f
f
i
c
i
e
n
c
y
FLS / Measurements
6 mm nozzle
12 mm
20 mm
32 mm
40 mm
6 mm nozzle
12 mm
20 mm
32 mm
40 mm
Fast Lagrangian Solver, FLSFast Lagrangian Solver, FLSSmoothed Particle Smoothed Particle
Hydrodynamics, SPHHydrodynamics, SPH
AArtificialrtificial compressibilitycompressibility &&Free surface adaptationFree surface adaptation
Commercial Software (Fluent, CFX)Commercial Software (Fluent, CFX)
Open source softwareOpen source software
-
Turgo turbine design
-
New methodology: Prototype model
-
New methodology: Parameterization
Parametric design
Quadratic variation of the blade angle along meridian stream lines Use of Bezier polynomials and interpolation techniques. Introduction of 12 free variables for wide shape modifications Addition of hub and shroud axisymmetric surfaces .
-
JetJet--bucket interaction analysis: FLS model (left); SPH model (right)bucket interaction analysis: FLS model (left); SPH model (right)
New methodology: Flow simulation and Design optimization
Initial design Optimum design
Design optimization (EASY) resultsDesign optimization (EASY) resultsValidation Validation comparison with comparison with Eulerian model results (Fluent)Eulerian model results (Fluent)
-
Jet-runner interaction analysis
Flow pictures obtained by the Flow pictures obtained by the SPH modelSPH model
-
Piping and injectors system design
-
Piping and injectors system design
Surface Ptot (Pa) Losses (Pa)
Max helicity
Area (m2)
Welding Length (m)
pressure_outlet.18 1438.934 720.7506
pressure_outlet.19 1438.731 720.953 90 (reference)
velocity_inlet.17 2159.684
126 3.719709 8.090476
pressure_outlet.18 1448.735 511.4458
pressure_outlet.19 1449.423 510.7574 70
velocity_inlet.17 1960.18
72.85 4.296013 8.146408
pressure_outlet.18 1441.313 379.2711
pressure_outlet.19 1438.368 382.2162 90o Curve 3
velocity_inlet.17 1820.584
79.35 3.725127 9.141367
-
Piping and injectors system design
-
72
76
80
84
88
E
f
f
i
c
i
e
n
c
y
(
%
)
'Conventional' design
Optimum design
Improved runner performance
Real turbineReal turbine Improved Improved designsdesigns
0 0.4 0.8 1.2 1.6 2
Load (Q / Qdesign)
68
72
76
80
84
E
f
f
i
c
i
e
n
c
y
(
%
)
Lower injector
Upper injector
FLS results
0 0.4 0.8 1.2 1.6
Load (Q / Qdesign)
68
72 Optimum design
Optimum - Turgo adjusted
74 74767
880
81
82
8383
Flow rate (lt/sec)
N
e
t
h
e
a
d
(
m
)
20 40 60 80 100 120 14030
35
40
45
50
55
60
84,2
FLS resultsFLS results
-
Model turbine construction drawings
-
Model turbine computer views
Design of the casing and of the injectors of the model of Turgo turbine
-
Separate fabrication of runner parts (blades, hub and shroud)Separate fabrication of runner parts (blades, hub and shroud)
Hub and Shroud with precision machining. Proper slots for blades fitting. Prototype blade constructed by composites using 3D-printing Use of plastic prototype to produce aluminium prototype Blades fabrication by bronze casting Internal blade surface polishing
Runner fabrication
Internal blade surface polishing Final blade assembly with bronze welding Runner balancing
FeaturesFeaturesMore complex but more accurate construction methodologyEnhanced axial symmetry of the runnerCapability for particular mechanical manufacturing of the hydrodynamic profile of each separate blade if necessary
-
Test rig construction / adaptation
-
Closure
HYDROACTION develops a methodology for optimizing the design of hydro turbines up to 5 MW, with regard to productivity and cost.
The standardisation and application of the methodology will contribute to the development of cost-efficient,
Thank you!Thank you!
www.hydroaction.orgwww.hydroaction.org
will contribute to the development of cost-efficient, tailor-made turbines for small hydro plants with optimum performance.