대학기계학회 2004년도 춘계학술대회 논문집
T
ST
iT
ot
1t
2t T
대학기계학회 2004년도 춘계학술대회 논문집
Slidacs
-+
Coolant out
Coolant in Water jacket
Adiabatic layer
Power meter
Data logger
θ
g
1.E-13 1.E-12 1.E-11 1.E-10 1.E-09 1.E-08 1.E-07
0.2 0.3 0.4 0.5 0.6
Porosity, ε
Permeability, K [m^2]
Exp. Blake-Kozeny equ.
tw=0.7 mm : D_s=100 μm - - - , D_s=50.3 μm - - - - - tw=0.8 mm : D_s=180 μm --- , D_s=165.5 μm ---
0 10 20 30 40 50 60 70 80 90 100
0 10 20 30 40 50 60 70 80 90 100
Inclination Angle, Θ[deg.]
Maximum Heat Transport Rate, Q [W]
Qc,max, pred.(D_s=100 μm) Qc,max, pred.(D_s=50.3 μm) Measured tw=700 μm : - - - - -
tw=800 μm : - - - - - tw=900 μm : - - - - -
1.E+03 1.E+04 1.E+05 1.E+06 1.E+07
θ=10˚ θ=20˚
θ=45˚ θ=90˚
U_hp,p Pred.
Tv=40˚C D_s,i=50.3 μm Pred.(U_hp,p)=4.3*10^4 [w/m^2K]
tw=900 μm
Overall heat transfer coefficient, U_hp,p [W/m^2K]
0 20 40 60 80 100 120 140 160 180
0 10 20 30 40 50 60 70 80 90 100
Inclination Angle, θ [deg.]
Maximum Heat Transport Rate, Q [W]
Qc,max, pred.(D_s=180 μm) Qc,max, pred.(D_s=165.5 μm) Measured tw=800 μm : - - - - -
tw=900 μm : - - - - -
대학기계학회 2004년도 춘계학술대회 논문집
1.E+03 1.E+04 1.E+05
0 20 40 60 80 100 120
Heat road, Q [W]
Overall heat transfer coefficient, U_hp,p [W/m
