Kubota WG752 E3 Applications Manual page 55

Model Fuel
Gasoline
WG972
LPG
DG972 NG
NOTE
• Heat rejection to cooling water calculating formula
• Ho=Hu·Ne·be·i
Ho : Heat rejection to cooling water
Hu : Fuel lower heating value
Gasoline : 42.7 MJ/kg, 10201 kcal/kg, 18361 BTU/lb
LPG : 47.3 MJ/kg, 11300 kcal/kg, 20339 BTU/lb
NG : 49.5 MJ/kg, 11828 kcal/kg, 21285 BTU/lb
Japanese standard gas
lower heating value : 9699 kcal/m
supply pressure : 0.98 − 2.45 kPa (2.27 − 5.68 oz/inch
Ne : Brake horse power
be : Specific fuel consumption ratio
i : Dispersion ratio to cooling water
Output
kW
Brake horse power HP
PS
g/kWh
g/HPh
Fuel consumption
g/PSh
lb/HPh
MJ/h
Heat rejection to
kcal/h
cooling water
BTU/h
kW
Brake horse power HP
PS
g/kWh
g/HPh
Fuel consumption
g/PSh
lb/HPh
MJ/h
Heat rejection to
kcal/h
cooling water
BTU/h
kW
Brake horse power HP
PS
g/kWh
g/HPh
Fuel consumption
g/PSh
lb/HPh
MJ/h
Heat rejection to
kcal/h
cooling water
BTU/h
3
(1090 BTU/ft
Engine Speed (min
2000 2400
14.8 17.8
19.8 23.9
20.1 24.2
404 398
301 297
297 292
0.664 0.654
44.37 47.51
10599 11349
42058 45035
14.7 17.8
19.8 23.8
20.1 24.1
301 287
224 214
221 211
0.494 0.471
36.49 37.80
8717 9031
34589 35837
10.0 13.9
13.4 18.6
13.6 18.9
380 310
283 231
279 228
0.624 0.509
32.73 33.49
7805 7979
30968 31638
3
)
2
)
1-9
-1
(rpm))
2800 3200 3600
20.6 22.2 23.1
27.6 29.8 31.0
28.0 30.2 31.4
371 351 334
276 262 249
272 258 245
0.609 0.577 0.549
54.81 58.90 64.88
13094 14072 15501
51957 55840 61509
20.1 21.2 22.0
26.9 28.5 29.5
27.3 28.9 29.9
286 292 299
213 218 223
210 215 220
0.470 0.480 0.491
45.63 51.87 61.28
10900 12391 14640
43252 49167 58094
16.1 17.4 17.6
21.6 23.3 23.6
21.9 23.7 23.9
298 293 285
222 219 213
219 216 210
0.489 0.483 0.47
39.90 44.67 48.91
9529 10683 11713
37770 42398 46510