a) Sample calculation for engine torque
Engine Torque, T = ( F1 + F2 )R
T1 = (1.0) (0.056)
= 0.056 Nm
T2 = (2.0) (0.056)
= 0.112 Nm
T3 = (3.0) (0.056)
= 0.168 Nm
T4 = (4.0) (0.056)
= 0.224 Nm
T5 = (5.0) (0.056)
= 0.28 Nm
b) Sample calculation for engine break power
Engine Break Power, Bp = 2πNT
60
Bp1 =
= 8.7965 KW
Bp2 =
= 17.5929 KW
Bp3 =
= 26.3894 KW
Bp4 =
= 35.1858 KW
Bp5 =
= 43.9823 KW
c) Sample calculation for steam flow rate
Steam Flow Rate (Steam Consumption Rate), mf = flow rate x r
mf1 = flow rate(condensation rate) x r
= 100 x 10-3 x (0.001 x 60) m3 x 1000 kg
h m3
= 6.0 kg/h
mf2 = 135 x 10-3 x (0.001 x 60) m3 x 1000 kg
h m3
= 8.1 kg/h
mf3 = 135 x 10-3 x (0.001 x 60) m3 x 1000 kg
h m3
= 8.1 kg/h
mf4 = 150 x 10-3 x (0.001 x 60) m3 x 1000 kg
h m3
= 9 kg/h
mf5 = 140 x 10-3 x (0.001 x 60) m3 x 1000 kg
h m3
= 8.4 kg/h
d) Sample calculation for specific steam consumption
Specific Steam Consumption, SSC = mf
Bp
SSC1 = mf1
Bp1
= 6.0
8.7965
= 0.682 Kg/KW.h
SSC2 = mf2
Bp2
= 8.1
17.5929
= 0.4604 Kg/KW.h
SSC3 = mf3
Bp3
= 8.1
26.3894
= 0.3069 Kg/KW.h
SSC4 = mf4
Bp4
= 9
35.1858
= 0.2558 Kg/KW.h
SSC5 = mf5
Bp5
= 8.4
43.9823
= 0.191 Kg/KW.h
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ReplyDeleteHow to get the steam flow rate? ����
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