Particle surface-area-to-volume-ratio

n. The surface area of a fuel particle divided by its volume.

 

  • Discussion

 

The particle surface-area-to-volume ratio is a measure of a fuel particle’s fineness. It is important for determining the rate at which a fuel particle will increase in temperature as a result of heat transfer from its surroundings. For cylindrical fuel particles, surface-area-to-volume ratio is a function of particle diameter. The fuelbed average surface-area-to-volume ratio is called characteristic surface-area-to-volume ratio.