Man B&W L35MC6-TII - Pressure Losses and Coefficients of Resistance in Exhaust Pipes

MAN B&W 15.05
Page 3 of 3
MAN Diesel
MAN B&W MC/MCC, ME/MEC/MEGI/ME-B engines 198 40 949.3
90
60
30
90
45
D
R
D
R
D
D
R
D
Changeover valves
Changeover valve
of type with con-
stant cross section
ζa = 0.6 to .2
ζb = .0 to .5
ζc = .5 to 2.0
Changeover valve
of type with volume
ζa = ζb = about 2.0
M: Measuring points
Fig. 15.05.01: Pressure losses and coefcients of resistance in exhaust pipes
178 32 091.0 178 06 853.0
R = D ζ = 0.28
R = .5D ζ = 0.20
R = 2D ζ = 0.7
R = D ζ = 0.6
R = .5D ζ = 0.2
R = 2D ζ = 0.
ζ = 0.05
R = D ζ = 0.45
R = .5D ζ = 0.35
R = 2D ζ = 0.30
ζ = 0.4
Outlet from ζ = .00
top of exhaust
gas uptake
Inlet (from
turbocharger) ζ = – .00
Pressure losses and coefcients of resistance in exhaust pipes
Spark
arrester
Silencer
Exhaust
gas boiler
M
M
M
M
M
T/C
M
tc
M
tc
p

p
2
p
tc
p
3
a
a
b
c
a
b
90
60
20