INSIGHTS
Articles
Curated insights, case reviews, and industry trends, updated continuously.
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How do you calculate the air required for combustion?
1) Theoretical oxygen demand from elemental analysis (mass basis) Let elemental mass fractions (kg/kg fuel) be $C,H,O,S$…
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How are the composition and quantity of combustion products calculated?
1) Main products of theoretical complete combustion (trace species ignored) - $CO2$ from carbon - $H2O$ from hydrogen an…
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What is the combustion mechanism of fuels?
1) Controlling steps for the three fuel types
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What are the thermotechnical properties of fuels?
1) "Heat-related" properties - $Q{LHV}, Q{HHV}$ - Theoretical oxygen/air demand (determines flue gas volume and furnace…
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What are the composition and properties of fuels, and how are they expressed?
1) Two systems for "composition"
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What are the fuel requirements for refractory kilns?
1) Temperature and flame structure requirements
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What are a fuel's heating value (calorific value) and standard heating value, and what is a fuel's heat equivalent?
1) Heating value (calorific value) Heat released by complete combustion of a unit mass (or volume) of fuel.
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What are the advantages of liquid fuels
1) High energy density and easy metering Typical LHV: - Diesel/light oil: about $42\sim43\ \text{MJ/kg}$ (varies slightl…
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What thermal properties does heavy fuel oil have, and how many burner types are there?
1) Thermal properties of heavy fuel oil (engineering focus) - Lower heating value: typically in the $40\sim42\ \text{MJ/…
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