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Rewriting result & discussion report - Coggle Diagram
Rewriting result & discussion report
Introduction
q-blade
wind turbine
open source software
to analyze blade
to design blade
Vertical & horizontal
key element
airfoil design
X-Foil
import foil & geometry design
360 extrapolate
blade design
rotor design
key connection
wind
foil
turbine control & type
power
burden bend
analysis tool
BEM theory
DMS theory
hydrokinetic turbine
change
Reynolds
by density
997kg/ms
by viscosity
1.647Pa.s
conclude
easy use
arrange key element
adaptable
Methodology
3D design
blade design
Design parameter
number blade
hub radius
table form
position
chord
twist angle
foil
optimize
optimum tsr value
optimum twist
optimum chord
simulation
involve BEM simulation
input parameter
density
viscosity
element
max iteration
relax factor
velocity
BEM Theory
momentum theory
axial & angular momentum
produce iteration of each section
thrust and torque
performance
blade element
divided into section
calculated each
chord
twist
lift & drag apply
produce thrust and torwue
2D design
airfoil design
import
.dat file
UIUC airfoil
Airfoil tool
dimensionless plot
s-series foil
shape the foil
image multiple airfoil
X-foil analysis
input parameter
Reynolds number
calculated
density water(997)
velocity(1.5)
Diameter rotor(1.50)
kinematic viscosity(0.001002)
Mach number
local flow velocity,v(1.5)
speed of sound in water,a(1481)
range of aoa
-5 to 20 degree
graph
cl vs alpa
highest s1223
at degree,cl value
cl/cd vs alpha
s1223 3rd high
required high lift
increase power
360 extrapolate
high inflow angle
for BEM simulation
to converge
graph
lift
drag
cl/cd(glider ratio)
Result & discussion
focus(small intro)
performance
power required
range 700-1000watt per house
continuous power
design
diameter<2m
average depth river
1.5m/s velocity
airfoil
S1223
BEM theory
behavior of blade
graph
Dimensional performance analysis
key indicator
thrust
torque
power
BEM performance anaysis
key indicator graph
thrust vs tsr
behavior of graph
torque vs tsr
behavior of graph
power vs tsr
behavior of graph
Power extraction
Power vs rpm
TSR 6& above
decreases lift
low torque
TSR 5 and below
increases lift
high torque
torque vs rpm
max power,TSR 5.0
max torque, TSR 4.0
power still increase
help of thrust force
thrust vs rpm
TSR 4
graph increase drastically
rotate the blade
result in max power, TSR 5.0
small conclusion
refer torque graph
max power, at 4.0
refer thrust graph
max power, TSR 5.0
conclusion
aim
range power 700-1000watt
rotor diameter less than 2m
S1223,3bladed
power 1020wattt
BEM theory
Q-blade software
rotor diameter,1.5m
velocity,1.5m/s