L5794GSI

VHP Series Four Gas Engine Extender Series®

® ®

920 - 1380 BHP (686 - 1029 kWb)

Specifications
Cylinders: V12
Piston Displacement: 5788 cu. in. (95 L)
Bore & Stroke: 8.5” x 8.5” (216 x 216 mm)
Compression Ratio: 8.25:1
Jacket Water System Capacity: 107 gal. (405 L)
Lube Oil Capacity: 190 gal. (719 L)
Starting System: 125 - 150 psi air/gas 24V electric
Dry Weight: 21,000 lb. (9,525 kg)

Standard Equipment
AIR CLEANER – Two, 3" dry type filter with hinged rain shield and service indicator. ENGINE ROTATION – Counterclockwise when facing flywheel.
AIR FUEL RATIO CONTROL (AFR) – Integrated ESM® - AFR catalyst rich-burn control, EXHAUST OUTLET – Single vertical at rear. Flexible stainless steel connection with 8" (203
main fuel gas regulator actuators, exhaust O2 sensor(s), and post turbocharger exhaust mm) pipe flange.
thermocouple. Factory mounted and tested. AFR maintains emissions through load and FLYWHEEL – Approx. WR2 = 155000 lb-in2; with ring gear (208 teeth), machined to accept
speed changes. The ESM AFR meets Canadian Standards Association Class 1, Division 2, two drive adapters: 31.88" (810 mm) pilot bore, 30.25" (768 mm) bolt circle, (12) 0.75" -
Group A, B, C & D (Canada & US) hazardous location requirements. Note: For dual fuel 10 tapped holes; or 28.88" (734 mm) pilot bore, 27.25" (692 mm) bolt circle, (12)
applications, ESM AFR system will control the primary fuel source only. 0.625"-11 tapped holes and (12) 0.75"-10 tapped holes.
BARRING DEVICE – Manual. FLYWHEEL HOUSING – No. 00 SAE.
BATTERY BOX – Ship loose battery box designed to accommodate two Series 31 12 VDC FUEL SYSTEM – Single 3" ANSI flange fuel inlet connection. Two natural gas, 4" (102 mm)
batteries. Includes power disconnect switch and 20 foot (6.1 m) cable for connection to updraft carburetors and two mounted Fisher 99, 2" (51 mm) gas regulators. 30-60 psi
ESM® Power Distribution Box. (207-414 kPa) fuel inlet pressure required. 10 foot (3 m) harness provided for ESM control of
BEARINGS – Heavy duty, replaceable, precision type. customer supplied fuel shutoff valve.
BREATHER – Self regulating, closed system. GOVERNOR – Electric throttle actuator controlled by ESM with throttle position feedback.
CONNECTING RODS – Drop forged steel, rifle drilled. Governor tuning is performed using ESP. ESM includes option of a load-coming feature to
improve engine response to step loads.
CONTROL SYSTEM – Waukesha Engine System Manager (ESM®) integrates spark timing
control, speed governing, detonation detection, start-stop control, diagnostic tools, fault IGNITION SYSTEM – Ignition Power Module (IPM) controlled by ESM, with spark timing
logging and engine safeties. Engine Control Unit (ECU) is central brain of the control system optimized for any speed-load condition. Dual voltage energy levels automatically controlled by
and main customer interface. Interface with ESM is through 25 foot (7.6 m) harness to local ESM to maximize spark plug life. Shielded ignition components meet Canadian Standard
panel, through MODBUS RTU slave connection RS-485 multidrop hardware, and through the Association Class 1, Division 2, Group A, B, C & D (Canada & US) hazardous location
Electronic Service Program (ESP). Customer connections are only required to the local panel, requirements.
fuel valve, and 24V DC power supply. Compatible with Woodward load sharing module. ESM INTERCOOLER – Air-to-water.
meets Canadian Standards Association Class I, Division 2, Group A, B, C & D (Canada & US), LEVELING BOLTS
hazardous location requirements. LIFTING EYES – Requires 9.5 ton Working Load Limit (W.L.L.) anchor shackles.
CRANKCASE – Integral crankcase and cylinder frame. Main bearing caps drilled and tapped LUBRICATION – Full pressure, gear type pump. Engine mounted full flow lube oil micro-
for temperature sensors. Does not include sensors. fiberglass filters with mounted differential pressure gauge. MICROSPIN® bypass filter, engine
CRANKSHAFT – Forged steel, seven main bearings, counterweighted and dynamically mounted. Air/gas motor driven prelube pump, requires final piping.
balanced. MANIFOLDS – Exhaust, (2) water cooled.
CYLINDERS – Removable wet type cylinder liners. OIL COOLER – Shell and tube type, with thermostatic temperature controller and pressure
CYLINDER HEADS – Twelve interchangeable. Four valves per cylinder, with water cooled regulating valve. Factory mounted.
exhaust valve seats. Roller valve lifters and hydraulic push rods. Flange mounted ignition OIL PAN – Deep sump type. 190 gallon (719 L) capacity, including filter and cooler.
coils.
PAINT – Oilfield orange primer.
ELECTRONIC SERVICE PROGRAM (ESP) – Microsoft® Windows-based program provided
PISTONS – Aluminum with floating pin. Oil cooled. 8.2:1 compression ratio.
on CD-ROM for programming and interface to ESM. Includes E-Help for troubleshooting any
ESM faults. Serial harness is provided for connection of a customer supplied laptop to the SHIPPING SKID – For domestic truck or rail.
ECU RS-232 port. TURBOCHARGERS – (2) with water-cooled bearing housing and differential wastegates.
ENGINE MONITORING DEVICES – Factory mounted and wired sensors for lube oil pressure VIBRATION DAMPER – Viscous type.
and temperature; intake manifold temperature and pressure; overspeed; and jacket water WATER CIRCULATING SYSTEM, AUXILIARY CIRCUIT – Belt driven water circulating high
temperature; all accessible through ESM®. ESM continually monitors combustion capacity pump for intercooler and lube oil cooler. See S6543-36 performance curve for use
performance through accelerometers to provide detonation protection. Dual magnetic pick- with standard 10" diameter crankshaft pulley.
ups are used for accurate engine speed monitoring. ESM provides predictive spark plug WATER CIRCULATING SYSTEM, ENGINE JACKET – Belt driven water circulating pump.
diagnostics as well as advanced diagnostics of engine and all ESM sensors and logs any Cluster type thermostatic temperature regulating valve, full flow bypass type with 165°-170°
faults into non-volatile flash memory. Sensors meet Canadian Standards Association Class 1, F (74°-77°C) start to open thermostats. Flange connections and mating flanges for (2)
Division 2, Group A, B, C, & D (Canada & US) hazardous location requirements. 4" (102 mm) inlets and (1) 5" (127 mm) outlet.

Diesel&Gas Service
111524, Россия, г. Москва,
Проезд Фрезер, д.2, стр.107
Телефон: +7 (495) 775 01 27
E-mail: info@dieselgass.ru Страница 1 из 2
POWER RATINGS: L5794GSI VHP Series Four Gas Engines
Brake Horsepower (kWb Output) 130°F
(54°C) I.C. Water Temperature
1200 RPM 1000 RPM 900 RPM 800 RPM
Displ. cu.
Model C.R. Bore & Stroke in. (mm) in. (litres) C I C I C I C I
L5794GSI 8.25:1 8.5’’ x 8.5’’ (216 x 216) 5788 (95) 1380 1380 1150 1150 1035 1035 920 920
(1029) (1029) (858) (858) (772) (772) (686) (686)

1200 rpm 1000 rpm

Power bhp (kWb) 1380 (1029) 1150 (858)
BSFC (LHV) Btu/bhp-hr (kJ/kWh) 7532 (10657) 7366 (10418)
Fuel Consumption Btu/hr x 1000 (kW) 10394 (3046) 8471 (2483)
NOx g/bhp-hr (mg/nm3 @ 5% O2) 13.50 (5011) 14.90 (5508)
Emissions

CO g/bhp-hr (mg/nm3 @ 5% O2) 10.50 (3770) 10.10 (3734)

THC g/bhp-hr (mg/nm3 @ 5% O2) 1.80 (682) 2.00 (733)
NMHC g/bhp-hr (mg/nm3 @ 5% O2) 0.28 (105) 0.30 (110)
Heat to Jacket Water Btu/hr x 1000 (kW) 3037 (890) 2512 (736)
Heat to Lube Oil Btu/hr x 1000 (kW) 470 (138) 372 (109)
Balance
Heat

Heat to Intercooler Btu/hr x 1000 (kW) 132 (39) 74 (22)

Heat to Radiation Btu/hr x 1000 (kW) 674 (198) 605 (177)
Total Exhaust Heat Btu/hr x 1000 (kW) 2959 (867) 2298 (674)
Induction Air Flow scfm (Nm3/hr) 2001 (3014) 1638 (2467)
Exhaust
System
Intake/

Exhaust Flow lb/hr (kg/hr) 8984 (4075) 7355 (3336)

Exhaust Temperature °F (°C) 1136 (613) 1077 (581)
Typical heat data is shown, however no guarantee is expressed or implied. Consult your Dresser Waukesha Application Engineering Department for
system
application assistance.
All natural gas engine ratings are based on a fuel of 900 Btu/ft3 (35.3 MJ/nm3) SLHV, with a 91 WKI®. For conditions or fuels other than standard,
consult the
Dresser Waukesha Application Engineering Department.
Data based on standard conditions of 77°F (25°C) ambient temperature, 29.53 inches Hg (100kPa) barometric pressure, 30% relative humidity (0.3 inches
HG / 1
kPa water vapor pressure).
Fuel consumption based on ISO3046/1-1995 with a tolerance of +5% for commercial quality natural gas having a 900 BTU/ft3 (35.3 MJ/nm3) SLHV.
Heat data based on fuel consumption +2%.
Heat rejection based on cooling exhaust temperature to 77°F (25°C).
Rating Standard: All models - Ratings are based on ISO 3046/1-1986 with mechanical efficiency of 90% and Tcra (clause 10.1) as specified above
limited to
± 10° F (5° C). Ratings are also valid for SAE J1349, BS5514, DIN6271 and AP17B-11C standard atmospheric conditions.
C = ISO Standard Power/Continuous Power Rating: The highest load and speed which can be applied 24 hours per day, seven days per week, 365
days per year except for normal maintenance. It is permissible to operate the engine at up to 10% overload, or a maximum load indicated by the
intermittent rating, whichever is lower, for two hours in every 24 hour period.
I = Intermittent Service Rating: The highest load and speed that can be applied in variable speed mechanical system application only. Operation at this
rating is limited to a maximum of 3500 hours per year.

85" 147"
(2159 mm) (3734 mm)

97.83"
(2485 mm)

Diesel&Gas Service
111524, Россия, г. Москва,
Проезд Фрезер, д.2, стр.107
Телефон: +7 (495) 775 01 27
E-mail: info@dieselgass.ru Страница 2 из 2