Milton CAT G35LG 35 kW Performance Data: LG Natural Gas Properties - Manual

Material Specification
GMS 9000
OLYMPIAN POWER SYSTEMS OWNS THE COPYRIGHT OF THIS SPECIFICATION WHICH IS SUPPLIED IN CONFIDENCE AND MUST NOT BE
COPIED OR TRANSMITTED TO OTHERS WITHOUT THE EXPRESS WRITTEN CONSENT OF OLYMPIAN POWER SYSTEMS
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REV DATE NUMBER
A
NATURAL GAS
11/17/11 GMS 9000
1. DESCRIPTION:
NATURAL GAS
2. SCOPE:
This material specification provides the properties of natural gas used in performance and reliability
testing of Olympian products.
3. APPLICATION:
Olympian products designed to run on natural gas are tested for performance and reliability with clean,
dry, pipeline quality natural gas. The properties presented in this standard represent the natural gas
used in product testing. The performance and reliability of Olympian products using non-conforming
fuels are unknown and cannot be guaranteed.
4. BACKGROUND:
Natural gas is, by definition, any gas that occurs organically, but this standard focuses on natural gas
that is intended for use as fuel in reciprocating internal combustion engines. This natural gas is
generally assumed to have specific properties, but compositional differences and contaminants greatly
influence the fuel’s effectiveness. This variation can lead to lower power output, pre-ignition, detonation,
and corrosion if the fuel does not meet this standard. This standard identifies an acceptable fuel
composition for use in Olympian products.
5. FUEL SPECIFICATIONS:
The fuel used by Olympian is clean, dry, pipeline quality natural gas adhering to the following:
Component / Property Unit Range
Methane % Vol. 80 Min.
Ethane % Vol. 0-10
Propane % Vol. 0-5
Butanes % Vol. 0-2
Pentanes and heavier % Vol. 0-0.5
Nitrogen and other inerts % Vol. 0-3
Carbon dioxide % Vol. 0-3
Total diluents gases % Vol. 0-5
Hydrogen sulfide g/100scf (mg/m 3 ) 0.25-0.3 (6-7)
Total sulfur g/100scf (mg/m 3 ) 5-20 (115-460)
Water vapor lb/MMscf (mg/m 3 ) 4-7 (60-110)
High Heating value Btu/scf (kJ/m 3 ) 950-1150 (35400-42800)