# How do you calculate burner flame length?

## How do you calculate burner flame length?

Flame length = 0.0059*Q^0.478 Where Q is duty of burner and A , B are constant.

## What is a turbulent diffusion flame?

Turbulent diffusion flames are excellent flows in which to study the effects of large density differences on turbulence because the density gradients remain large, whereas in ordinary jets and wakes they soon become small.

What is laminar diffusion flame?

The burning process is described as follows: The hot flame heats the unburned fuel bed, which subsequently vaporizes. The resulting fuel vapor reacts with the oxygen supplied by the incoming air, thereby producing the heat that maintains the flame-spread process.

Is a candle flame laminar?

Candle flames (a diffusion flame) operate through evaporation of the fuel which rises in a laminar flow of hot gas which then mixes with surrounding oxygen and combusts.

### Why is flame length important?

Flame Length It is measured as the distance from the middle of the flaming zone to the average flame tip. Flame length affects choice of fire suppression tactics and methods, and factors into the dimensions of safety zones.

### What are the characteristics of diffusion flames?

Diffusion Flames The distinctive characteristic of a diffusion flame is that the burning rate is determined by the rate at which the fuel and oxidizer are brought together in proper proportions for reaction.

What is the color of diffusion flame?

The soot typically produced in a diffusion flame becomes incandescent from the heat of the flame and lends the flame its readily identifiable orange-yellow color.

What are the four elements in the diffusion flame process?

Essentially all four elements must be present for fire to occur, fuel, heat, oxygen, and a chemical chain reaction.

#### What is the difference between flame height and flame length?

Flame height is the average height of flames as measured vertically, up and down. It may be less than flame length if the flames are angled in the horizontal direction, backward or forward.

#### Can you outrun a forest fire?

Such areas are extremely dangerous during a forest fire. Flames also tend to travel uphill, and running uphill will slow you down anyway. Can you — or should you even attempt to — outrun a forest fire? The short answer is that a wall of flame can move at 20 mph or faster and easily overtake a runner.