Calculation Of Corrected Power - Mitsubishi L Series Service Manual

ADJUSTMENT AND OPERATION
3.4.2

Calculation of corrected power

Multiply the measured brake power or torque by the
calculated diesel engine correction factor to obtain a
corrected value.
If the applicable range of the correction formula is
exceeded, indicate the corrected values and record the test
conditions on the test record.
Colculation output = Correction factor
Atmospheric conditions during test
Temperature(T ):
Dry atmospheric pressure(P
f m
=( f a ) f a :Atmospheric factor
c
Range of correction equation use
0.9 1.1.
c
Calculation of correction factor(
Natural aspiration engine and engine with
mechanically driven air charger
T
99
f a
P 298
d
Turbocharged engine without air cooler
or with air-to-air cooler
T
99
f a
P 298
d
Turbocharged engine with air-to-liquid
cooler
T
99
f a
P 298
d
13-12
Measured brake power
c
T
P
):
d d
f
Engine factor
m
c
f a
)
Calculation of engine factor f
f
0.036q 1.14
m c
q
c
q
q
c
r
z
q =
l
z=120000 4
r
r=1
Applicable range of engine factor f
q l
37.2 65mg
c
q l
37.2mg
c
f
l q
65mg
c m
m
g/s
-1
min
m
f
m