Summary Table - Kohler SFGLD480 Operation & Maintenance Manual

3. SUMMARY TABLE

Symbol Parameter
LHV Lower heat value
LHV
LHV variation
LHV
LHV gradient
MN Methane number
Supplied gas pressure and
P & T
temperature

Gas humidity
WetDewT Wet gas dew point
O Oxygen in gas
2
O Oxygen in gas
2
H Hydrogen in gas
2
C4+ Higher hydrocarbons
DryDewT Dry gas dew point
H S hydrogen sulfide equivalent
2
-
Cl Chlorine equivalent
Si Silicon and siloxanes
NH Ammonia
3
Tar Oils and tar
Dust Solid particles
Summary table of natural gas fuel specifications for Kohler engines
PRODUCT INFORMATION
IC-G-D-30-021e
FUEL SPECIFICATIONS – US NATURAL GAS
Limit value Engine/application
3
37.5 – 42 MJ/m All Natural gas engines
n
<±5% Mechanical carburetion
<±10% Electronic carburetion
Electronic carburetion
>±10%
Continuous gas analyzer
<1%PCI/min All Natural gas engines
>75 All Natural gas engines
IC-G-D-30-007e Electronic carburetion
IC-G-D-30-040e Electronic carburetion
IC-G-D-30-008e Mechanical carburetion
IC-G-D-30-015e Electronic carburetion
IT-G-A-00-011e All Natural gas engines
<80% All Natural gas engines
>15º less than Tgas All Natural gas engines
<2% vol.
Mechanical carburetion
<±1% carb. point
>2% vol.
Electronic carburetion
>±1% carb. point
<12% vol. All Natural gas engines
<2% vol. All Natural gas engines
>15º less than Tamb All Natural gas engines
<300 ppm W/o catalytic converter
<100 ppm W/ catalytic converter
<80 ppm W/o catalytic converter
<6.5 ppm W/ catalytic converter
3
<7 mg/m W/o catalytic converter
n
Nil W/ catalytic converter
<60 ppm All Natural gas engines
Condensations not
All Natural gas engines
allowed
<5 m
All Natural gas engines
3
<10 mg/m (1-5m) All Natural gas engines
n
4.1.23
INDEX DATE
B
May 2014
O&M_2.002211.810_A_10_2016
Comments
Natural gas
Readjust carburetion
Continuous gas analyzer required
TECJET 50+
TECJET 52
Zero pressure regulator and screw
ELEKTRA 50
Minimum room temperature
No condensation
Recommended
Readjust carburetion
Continuous methane meter for automatic
setting of carburetion
@ max. supplied gas P. Recommended
Total sulfur: H S equivalent
2
F, Cl, Br, I organic and inorganic
Analyze: TMOH,TMS,L2,L3,L4,D3,D4,D5
Besides, <75ppm of Si in engine oil
Condensable oil vapors
Larger size not allowed.
Dep. 8
5/5