Low temperature burners - INDITHERM®
Specifications of INDITHERM® burners
1 - 2.3 - 6 E - m - 7/08
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| Fuel: natural gas at 15° C with 10.9 kWh/Nm³ HHV - sg = 0.6 | [1] |
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| Combustion air: 15° C - 21 % O2 - 50 % humidity - sg = 1.0 [1] |
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Stated pressures are indicative. Actual pressures are a function of air humidity, altitude, type of fuel, and gas quality. | |||||||||
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Burner size & type | 100 | 300 | 550 | 700 |
| 850 | 1100 | 1500 | 1800 |
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back pressure
[2]mbar
Max. capacity [3] | kW (HHV) | 0 | 125 | 340 | 550 | 720 | 850 | 1050 | 1472 | 1800 | |
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1.5 | 110 | 285 | 500 | 675 | 775 | 880 | 1266 | 1693 | |||
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Min. capacity [4] | kW (HHV) | 0- 1.5 | 5.0 | 6.0 | 10 | 15 | 15 | 25 | 25 | 25 | |
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Pilot capacity [5] | kW (HHV) | 7.5 | 10.0 | 15 | 25 | 25 | 40 | 40 | 40 | ||
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Combustion air differential pres- | mbar | 0 | 6.5 | 4.5 | 6.4 | 7.9 | 9 | 5 | 6.4 | 13 | |
sure [6] | 1.5 | 5 | 3.2 | 5 | 7.3 | 7.5 | 3.5 | 4.7 | 11.5 | ||
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Combustion air flow | m3/h | 0 | 136 | 360 | 615 | 755 | 910 | 1100 | 1611 | 1850 | |
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1.5 | 119 | 304 | 545 | 728 | 831 | 920 | 1386 | 1740 | |||
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Gas differential pressure at inlet | mbar | 0 | 3.4 | 7.5 | 6.4 | 10.3 | 13.3 | 19.8 | 5.8 | 10 | |
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Gas differential pressure at test | mbar | 0 | 2.7 | 6.7 | 5.4 | 7.1 | 12 | 17.7 | 5.5 | 9.3 | |
connection [8] | 1.5 | 2.1 | 4.7 | 4.5 | 6.3 | 10 | 12.4 | 4 | 8.2 | ||
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Flame length [9] | m | 1 | 1.2 | 2 | 2.1 | 2 | 2.3 | 2.6 | |||
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[1]sg (specific gravity) = relative density to air (density air = 1.293 kg/Nm3.
[2]Back pressure = static pressure in the combustion chamber where the flame develops. Data in this table are given for 0 and 1.5 mbar back pressure.Combustion air flow valid for all listed maximum capacities.
[3]Maximum capacity when firing at 3% vol. O2 level in the flue gas.
[4]Minimum capacity without pilot gas. If lower minimum capacities are required, refer to chapter ‘minimum capacities’ in this section.
[5]With direct ignition (no pilot), start capacity should be equal or higher than the stated pilot capacity.
[6]Differential pressure measured between burner test connection and combustion chamber.
[7]Gas differential pressures for natural gas at burner inlet. This pressure should be available at burner inlet throughout the entire capacity range.
[8]Differential pressure to be measured between burner test connection and combustion chamber.
[9]Flame lengths are derived from measured lab data. Actual flame lengths can differ slightly.
w w w . m a x o n c o r p . c o m
combustion systems for industry
MAXON reserves the right to alter specifications and data without prior notice. © 2008 Copyright Maxon Corporation. All rights reserved.
