what happens to CO2 as aeration rates increase?
CO2 percentage decreases
what range of CO2 values should you attain
5-8%
How does excess air affect CO
if the mix is rich (negative excess air), CO will be high and CO will decrease as excess air is added into the system
How does O2 change as excess air increases
O2 increases with more excess air
what are the no-“FLY” zones
separate zones where Flashback, Lifting, and Yellow Tipping are likely to occur (3 different areas on a primary air versus port loading zone)
How to solve flashback problems
- increase port loading
2. reduce aeration rate
How to solve lifting problems
- reducing aeration rate
2. decrease port loading
how to solve yellow tipping problems
- increase aeration
2. decrease port loading
the ____ the port loading, the higher the primary aeration
the lower the port loading, the higher the primary aeration
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Chapter 1 - Gaseous Fuels: Their Physical Properties and Characteristics26
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Gas fuel properties11
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Chapter 2 - Operational Safety, Fuel Handling and Product Liability13
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Chapter 3 - Ethics, Standards, and Certification5
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Chapter 4 - Combustion Chemistry20
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Chapter 5 - Normal and Abnormal Combustion and Combustion Parameters34
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Chapter 6 - Combustion Air Criteria48
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Chapter 7 - Combustion Stability30
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Chapter 8 CO2 Versus Efficiency7
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Chapter 9 Mechanical Devices Used in Gas Appliances14
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Chapter 10 Flue and Vent Criteria9
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Chapter 11 Environmental Considerations13
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Chapter 12 Four Most Common Combustion Problems10
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Chapter 13 NOx Considerations7
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Chapter 14 Thermodynamics, Heat Transfer, Thermal Conductivity and Thermometry10
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Chapter 15 Ignition and Transient Considerations11
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Chapter 16 Curves9
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Chapter 17 Combustion System Trouble Shooting4
