Category Archives for Burners and Plenums

Burner Testing – Acceptance Criteria

Combustion – General. Flame dimensions must fit into the heater design under all test conditions, with no possibility of impingement on heater tubes. Mixing of fuel and air should be uniform across the burner tile. With the excess air rates … Continue reading

25. April 2018 by sam
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Burner Testing – Miscellaneous Tests

If the heater design includes air preheat, some of these tests should be carried out with and without preheated air. The same goes for forced draft. If pilot burners are a part of the design (usually not), all tests should … Continue reading

25. April 2018 by sam
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Burner Testing – Oil Burner Operation

If a pilot is provided (usually one is not), run these tests with the gas burner off. If a pilot is not provided, as is usually the case, run these tests with the gas at the minimum gas bypass pressure. … Continue reading

25. April 2018 by sam
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Burner Testing – Gas Burner Operation

The following tests should be carried out on several test gases blended to simulate the normal and extreme ranges of expected fuel gas quality. Generally a three-component mixture of natural gas, propane and hydrogen is used to duplicate the expected … Continue reading

25. April 2018 by sam
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Burner Testing – Test Conditions

The burner should be mounted in the same position as it will be in the plant heater (vertical or horizontal), firing along a wall or floor if it will be so in the plant. Viewing ports should be provided so … Continue reading

25. April 2018 by sam
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Burner Testing – Where and When

Burner demonstration tests should be conducted at the burner supplier’s facility for all new burners or any change in burner design. The burner test should be omitted only for simple “replacements in kind.” Gas should be blended to the design … Continue reading

25. April 2018 by sam
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Burner Design Review on New Installations

The operating representative, design representative, design contractor, heater designer, and burner designer should meet together to review and agree on all aspects of the burner design. For future maintenance work, it is essential that good drawings clearly showing all essential … Continue reading

25. April 2018 by sam
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Burner Design Requirements

Sliding-can type air registers should be cast iron or steel plate of 10-gage minimum thickness. This is to provide resistance to warping and to improve long term operability. Roller bearings should be provided for easy register movement, and a positive … Continue reading

25. April 2018 by sam
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Plenums for Noise Control

Intense noise accompanies the high rates of heat release inside fired heaters. Combustion roar escapes from the firebox mainly through the burner air registers. Inherent in today’s burners, combustion roar can be effectively suppressed by acoustically absorbent air intake plenums. … Continue reading

25. April 2018 by sam
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Excess Air Effects

Burners are one source of excess air in heaters. All plants watch excess air because too much means wasted fuel. The wasted fuel is that required to heat the excess air from ambient temperature to flue-gas temperature leaving the stack. … Continue reading

25. April 2018 by sam
Categories: Burners and Plenums | Leave a comment

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