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HEAT REJECTION

Page 5 of 6

3

HEAT REJECTION AND OPERATING DATA

MODEL P9390GSI

54.5° C (130° F) AUX. WATER TEMPERATURE

82° C (180° F) JACKET WATER TEMPERATURE

EN: 124073DATE: 7/99

Ref.

S

6124-69

—METRIC—HEAT REJECTION AND OPERATING DATA

MODEL P9390GSI8:1 COMPRESSION RATIO – 21° and 15° BTDC

54.5°C (130°F) AUXILIARY WATER TEMPERATURE82°C (180°F) JACKET WATER TEMPERATURE

ENGINE SPEED - RPML.S. TURBO H.S. TURBO

BMEP(bar)

TMG(5)

700 800 900 1000 1000 120011.86 15 191 200 212 225 228 248

10.48 15 188 199 211 222 227 250

9.52 15 186 194 209 217 226 251

10.48 21 178 191 202 216 216 237

9.52 21 173 188 199 210 215 239

8.62 21 166 183 194 203 215 241

HEAT TO

RADIATION

(kW)

6.90 21 152 169 178 186 214 244

11.86 15 774 907 1076 1246 1248 1661

10.48 15 712 834 981 1130 1145 1526

9.52 15 658 778 911 1058 1072 1442

10.48 21 668 791 922 1073 1055 1369

9.52 21 619 725 843 992 976 1260

8.62 21 570 665 771 912 908 1171

TOTAL ENERGY

IN EXHAUST(kW)

6.90 21 455 554 645 738 788 1031

11.86 15 593 604 622 633 644 677

10.48 15 589 603 619 626 644 680

9.52 15 581 597 616 617 642 683

10.48 21 555 573 589 607 607 633

9.52 21 546 568 584 598 606 636

8.62 21 534 560 576 588 606 638

EXHAUST TEMP

AFTER TURBINE

(+/- 30 °C)

6.90 21 508 537 551 563 604 641

11.86 15 2884 3336 3781 4367 4222 5384

10.48 15 2604 3000 3405 3884 3790 4819

9.52 15 2410 2770 3163 3575 3526 4467

10.48 21 2550 3023 3463 3746 3795 4768

9.52 21 2369 2758 3159 3480 3468 4321

8.62 21 2209 2532 2897 3240 3189 3955

INDUCTION

AIR FLOW

(nm3 /h)

6.90 21 1877 2158 2456 2751 2725 3368

11.86 15 3965 4589 5202 6003 5810 7403

10.48 15 3583 4130 4688 5346 5219 6631

9.52 15 3318 3813 4354 4924 4855 6148

10.48 21 3511 4157 4758 5157 5218 6550

9.52 21 3262 3794 4345 4792 4772 5944

8.62 21 3041 3487 3988 4459 4392 5444

EXHAUST

GAS FLOW

(kg/h)

6.90 21 2584 2971 3383 3787 3752 4637

7/30/2019 Heat Rejection 9390GSI

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HEAT REJECTION

Page 6 of 6

3

HEAT REJECTION AND OPERATING DATA

MODEL P9390GSI

54.5° C (130° F) AUX. WATER TEMPERATURE

82° C (180° F) JACKET WATER TEMPERATURE

EN: 124073DATE: 7/99

Ref.

S

6124-69

NOTES: 

1.  All data are based on ISO standard conditions of 100 kPa (29.54 inches Hg.) barometric pressure, 25 ° C 

(77 ° F) ambient and induction air temperature, 30% relative humidity (1 kPa / 0.3 inches Hg. water 

vapor pressure), 82 ° C (180 ° F) engine jacket water outlet temperature, and standard ignition timing  per Note 5 for 8:1 compression ratio.

2.  All data are average values at the standard conditions and will vary for individual engines and withoperating and ambient conditions and with changes to ignition timing or air/fuel ratio. An adequate

reserve should be used for cooling system or heat recovery calculations. See also Cooling SystemGuidelines, S-6699-7, latest version.

3. ISO Standard (continuous) power ratings conform to ISO 3046/1, latest version, with a mechanical 

efficiency of 90% and auxiliary water temperature, Tcra, of 54.5 ° C (130 ° F) limited to ± 5.5 ° C ( ± 10 ° F).

4. Fuel standard: dry natural gas, 35.38 MJ/m3

[25, V (0; 101.325)] (900 BTU/scf) saturated lower heating 

value (SLHV), with a minimum Waukesha Knock Index ™ of 91. Refer to S-7884-6, latest version, for thefull fuel specification.

5. Standard spark timing for loads up to the ISO Standard (continuous) rating, including the allowable

10% overload, is 21° BTDC. Standard spark timing for loads above the ISO Standard rating up to the

intermittent duty rating is 15 ° BTDC.

6. For heat rejection changes due to engine jacket water outlet temperature higher than standard (Note1), refer to S-7613-3, latest version.

7. Total Exhaust Energy includes both recoverable and non-recoverable heat. For a procedure tocalculate recoverable heat refer to S-8117-1, latest version.

8. Exhaust carbon monoxide (CO) concentration set to 0.38% (with exhaust oxygen concentration of 0.30%) for stoichiometric operation at rated speed and load at standard ignition timing. This CO level ismeasured at the port located in the exhaust manifold upstream of the turbocharger.

9.  ABB RR151 turbochargers; 211249-V low speed match for 700 – 1000 rpm211249-U high speed match for 1001 – 1200 rpm.

10. Reference Engine Ratings and Fuel Consumption curve sheet C-984-12.

11. Exhaust flow at nominal 100 kPa (29.54 inches Hg.) atmospheric pressure:

Flow rate (metric): m3 /h = (Exh. flow, kg/h) x (Exh. temp.

 °C + 273° )

332.96