PF strip-fin geometry
The procedure:
CHX_geom_pf_strip_fin(TypeHX$: S_T, c, th_f, th_s, b, b_f, D_h, theta, beta, A_fin\A)
Provides the geometric data associated with a plate finned - strip-fin type compact heat exchanger surface. These data are from Kays and London (1994).
Inputs:
The only input is the string identifying the geometry TypeHX$
1/8-15.2: 'PF_strip-fin_18_152'
1/8-13.95: 'PF_strip-fin_18_1395'
1/8-15.61: 'PF_strip-fin_18_1561'
1/8-19.86: 'PF_strip-fin_18_1986'
1/9-22.68: 'PF_strip-fin_19-2268'
1/9-25.01: 'PF_strip-fin_19-2501'
1/9-24.12: 'PF_strip-fin_19_2412'
1/10-27.03: 'PF_strip-fin_110_2703'
1/10-19.35: 'PF_strip-fin_110_1935'
1/10-19.74: 'PF_strip-fin_110_1974'
3/32-12.22: 'PF_strip-fin_332_1222'
1/2-11.94(D): 'PF_strip-fin_12_1194D'
1/4-15.4(D): 'PF_strip-fin_14_154D'
1/6-12.18(D): 'PF_strip-fin_16_11218D'
1/7-15.75(D): 'PF_strip-fin_17_1575D'
1/8-16.00(D): 'PF_strip-fin_18_1600D'
1/8-16.12(D): 'PF_strip-fin_18_1612D'
1/8-19.82(D): 'PF_strip-fin_18_1982D'
1/8-20.06(D): 'PF_strip-fin_18_2006D'
1/8-16.12(T): 'PF_strip-fin_18_1612T'
Outputs:
S_T = transverse fin spacing (m or ft)
c = fin length in flow direction (m or ft)
th_f = thickness of fin material (m or ft)
th_s = thickness of splitter plate material (m or ft) (=0 for fins with no splitter)
b = plate gap (m or ft)
b_f = fin spacing (m or ft) (=b for fins with no splitter)
D_h = hydraulic diameter defined as 4 x minimum flow area x length/heat transfer area (m or ft)
theta = minimum flow area/frontal area for finned surface side only
beta = heat transfer area/volume (m^2/m^3 or ft^2/ft^3) for finned surface side only
A_fin\A = heat transfer area on fins/heat transfer area for finned surface side only
Example
$UnitSystem SI Mass J K Pa
$VarInfo a units=m
$VarInfo b units=m
$VarInfo b_f units=m
$VarInfo beta units=1/m
$VarInfo D_h units=m
TypeHX$= 'PF_strip-fin_18_152'
Call chx_geom_pf_strip_fin(TypeHX$: S_T, a, th_f, th_s, b, b_f, D_h, theta, beta, A_fin\A)
{Solution:
S_T = 0.001676 [m]
c = 0.00318 [m]
th_f = 0.000152 [m]
th_s = 0
b = 0.0105 [m]
b_f = 0.0105 [m]
D_h = 0.002647 [m]
theta = 0.9053 [-]
beta = 1368 [m^2/m^3]
A_fin\A = 0.873}
Related procedures include: