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Oil Combustion Temperature Facts

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Questions and Answers

What must be raised to its ignition temperature for oil to burn?

Vaporization temperature (correct)

Flash point

Boiling point

Combustion temperature

Why is it essential for the primary flame to not be overcooled?

To prevent fuel cracking

To maintain stability in the combustion process (correct)

To avoid carbon deposits on the quarl

To ensure proper ignition of heavier hydrocarbons

What is the purpose of utilizing the radiated heat from the furnace flame?

To increase the flash point of the fuel

To bring lighter hydrocarbons to the ignition temperature (correct)

To cool the hydrocarbon droplets

To vaporize the oil quickly

Why is it important for the primary flame to just fill the refractory quarl?

To radiate heat back to the flame Signup and view all the answers

What factor significantly influences the stability of the combustion process?

Correct proportion and velocity of combustion air Signup and view all the answers

What is the primary function of the swirl plate in a pressure jet burner?

To impart rotational energy to the oil stream Signup and view all the answers

Why is it essential that oxygen is supplied steadily and arranged to mix thoroughly with the burning fuel in the secondary flame?

To maintain the stability of the suspended secondary flame Signup and view all the answers

What is the purpose of the orifice plate in a pressure jet burner?

To atomize the oil into fine droplets Signup and view all the answers

What happens if the forward velocity of the air and oil exceeds the speed of flame propagation in the secondary flame?

The primary flame will burn outside the quarl, leading to overcooling Signup and view all the answers

What is the turndown ratio of a burner?

The ratio of the maximum to minimum oil throughput Signup and view all the answers