fin solver
TRANSCRIPT
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Rectangular Fins
(from Incopera and DeWitt, Introduction to Heat Transfer, 3rd edition)
Width, w
(m)
Length, L
(m)
Thickness, t
(m)
Heat
Transfer
Coefficient
(W/m2K)
Base
Temperature
(C)
Fluid
Temperature
(C)
Thermal
Conductivity
(W/mK)
Density
(kg/m3)
Tip Heat
Transfer
Coefficient
(W/m2K)
Distance at
which
temperature
is desired
(m)
0.3 0.05 5.00E-03 10 400 30 400 8940 1.00E+01 0.05
Perimeter
(m)
Cross
Sectional
Area (m2)
Surface Area
(m2)
m
(m-1
) (x=0)
0.6100 0.0015 0.0320 3.1885 370.0000
Cases
Temperature at
Specified
Distance (C)
Heat Transfer
Rate (W)Efficiency
Thermal
Resistance
(K/W)
Convective Tip 394.9 117.3 0.991 3.154
Adiabatic Tip 395.3 111.9 0.945 3.306p at u
Temperature 30.0 4477.6 37.817 0.083
Input Input Output Output
Inputs
Outputs
Design Analysis
Picture of Rectangular Fin ArrayDrawing of Rectangular Fin
0
50
100
150
200
250
300
350
400
450
Tempertatre(C)
Distance (m)
Con
Adia
Fl ui
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Cylindrical or Pin Fins
(from Incopera and DeWitt, Introduction to Heat Transfer, 3rd edition)
Diameter, D
(m)
Length, L
(m)
Heat Transfer
Coefficient
(W/m2K)
Base
Temperature
(C)
Fluid
Temperature
(C)
Thermal
Conductivity
(W/mK)
Density
(kg/m3)
0 0 0 0 0 0 0
Perimeter
(m)
Cross
Sectional
Area (m2)
Surface Area
(m2)
m (m-
1)
(x=0)
0.0000 0.0000 0.0000 #DIV/0! 0.0000
Cases
Temperature at
Specified
Distance (C)
Heat Transfer
Rate (W)Efficiency
Thermal
Resistance
(K/W)
Convective Tip #DIV/0! #DIV/0! #DIV/0! #DIV/0!
Adiabatic Tip #DIV/0! #DIV/0! #DIV/0! #DIV/0!T p at F u
Temperature #DIV/0! #DIV/0! #DIV/0! #DIV/0!
Input Input Output Output
Required Heat
Transfer
(W)
Bare SurfaceArea
(m2)
Number of FinsMass of Fin
Array (kg)
400 1 #DIV/0! #DIV/0! #DIV/0!
Inputs
Outputs
Design Analysis
Drawing of Cylindrical Fin
0
0
0
0
0
1
1
1
1
1
1
Tempertatre(C)
Do No
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Tip HeatTransfer
Coefficient
(W/m2K)
Distance atwhich
temperature is
desired
(m)
0 0
#DIV/0!
#DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0! #DIV/0!
Picture of Cylindrical Fin Array
Distance (m)
ConvectiveT ip
Adiabatic Tip
Fluid Temperature Tip
t Use this Area
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#DIV/0! #DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0! #DIV/0!
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Density
(kg/m3)
Distance atwhich
temperature is
desired
(m)
0 0
###### #DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
Picture of Triangular Fin Array
Distance (m)
Use this Area
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#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
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Annular Fins
(from Incopera and DeWitt, Introduction to Heat Transfer, 3rd edition)
Inner Radius, r1(m)
Outer Radius,
r2(m)Thickness, t
(m)
HeatTransfer
Coefficient
(W/m2K)
Base
Temperature
(C)
Fluid
Temperature
(C)
Thermal
Conductivity
(W/mK)
0 0 0 0 0 0 0
Perimeter at
Base (m)
Cross
Sectional
Area at Base
(m2)
Surface Area
(m2)
m
(m-1
) (x=0)
0.0000 0.000E+00 0.0000 #DIV/0! 0.0
CasesHeat Transfer
Rate (W)Efficiency
Thermal
Resistance
(K/W)
Temperature
at Specified
Distance (C)
Convective Tip #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!
Adiabatic Tip #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!T p at F u
Temperature #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!
Input Input Output OutputRequired Heat
Transfer
(W)
Bare Surface
Area
(m2)
Number of Fins
Mass of Fin
Array
(kg)
50 0.05 #DIV/0! #DIV/0! #DIV/0!
Outputs
Design Analysis
Drawing of Annular Fin
Inputs
20
30
40
50
6070
80
90
100
0.0100
Temperature(C)
Do N
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Density
(kg/m3)
Distance atwhich
temperature is
desired
(m)
Tip HeatTransfer
Coefficient
(W/m2K)
0 0 0
#DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0!
Picture of Annular Fin Array
.0150 0.0200 0.0250
adial Position (m)
Convective TipAdiabtic Tip
Fluid Temperature Tip
t Use this Area
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#DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0!
#DIV/0! #DIV/0! #DIV/0!
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Parabolic Fins
(from Incopera and DeWitt, Introduction to Heat Transfer, 3rd edition)
Width, w (m)Length, L
(m)
Thickness at
Base, t
(m)
HeatTransfer
Coefficient
(W/m2K)
Base
Temperature
(C)
Fluid
Temperature
(C)
Thermal
Conductivity
(W/mK)
0 0 0 0 0 0 0
Perimeter at
Base (m)
Cross
Sectional
Area at Base
(m2)
Surface Area
(m2)
m
(m-1
) (x=0)
0.0000 0.0000 #DIV/0! #DIV/0! 0.0000
Temperature at
Specified Distance
(C)
Heat Transfer
Rate (W)Efficiency
Thermal
Resistance
(K/W)
#DIV/0! #DIV/0! #DIV/0! #DIV/0!
Input Input Output Output
Required Heat
Transfer
(W)
Bare Surface
Area
(m2
)
Number of Fins
Mass of Fin
Array
(kg)400 0.1 #DIV/0! #DIV/0! #DIV/0!
Inputs
Outputs
Design Analysis
Drawing of Parabolic Fin
0
0
0
0
0
11
1
1
1
1
Tempertatre(C)
Do Not
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Density
(kg/m3)
Distance atwhich
temperature is
desired
(m)
0 0
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
Distance (m)
Use this Area
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#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!