Global Power Technologies
PRODUCT INFORMATION
302842 Rev0 | Sentinel
Page 9 of 61
2.3
FUEL SUPPLY
The Sentinel Thermoelectric Generator is designed for natural gas only. This fuel type is listed on the
data plate. Do not use any other type of fuel.
When supplying fuel to the Sentinel TEG:
1.
Ensure the fuel pressure is at least 5 psig [34.5 kPag] and will not exceed 25 psig [172.4 kPag].
If the supply fuel pressure is expected to vary significantly, use an additional primary
regulator to ensure that the input pressure stays relatively constant.
2.
Ensure that the fuel used to operate the Sentinel TEG is clean and dry.
3.
Use fuel filters in accordance with the product recommendations.
4.
Replace the fuel filter cartridges as outlined Section 5.2.1 of this manual to ensure long life of the
heater cartridge and prevent premature poisoning of the catalyst.
CAUTION!
Use only natural gas to fuel the Sentinel Thermoelectric Generator.
CAUTION!
Using the Sentinel without fuel filter will void product warranty.
2.4
SPECIFICATIONS FOR GASEOUS FUEL
Gaseous fuels provided to the Sentinel:
(1)
1.
Shall not contain any particulates larger than 30 µmm diameter, including but not limited to
sand, dust, gums, crude oil, and impurities.
2.
Shall not have a hydrocarbon dew point in excess of 0°C [32°F] at 25 psig [172.4 kPag].
3.
Shall not contain more than 2.7 mg/Sm
3 (2)
(approx. 4 ppm) of H
2
S.
4.
Shall not contain more than 2.7 mg/Sm
3 (2)
(approx. 4 ppm) of Mercaptan Sulphur.
5.
Shall not contain more than 2.7 mg/Sm
3
(2)
(approx. 4 ppm) of Total Sulphur.
6.
Shall not contain more than 5% [CO
2
] and/or [N
2
] by volume, nor vary by more than ± 1% [CO
2
]
and/or [N
2
] during operation.
7.
Shall not contain more than 11 mg/Sm
3
(2)
of water vapour.
8.
Shall not contain more than 1% by volume of free oxygen.
9.
Shall have a nominal heating value (HHV) of 37 MJ/m³ [1000 BTU/ cu.ft.]
(1)
10.
Shall not exceed 60°C [140°F] in temperature.
NOTES:
(1)
For gaseous fuels outside of these specifications, please contact GPT.
(2)
At 1 atm and 15°C [59°F].
Summary of Contents for Sentinel
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