- Industry: Fire safety
- Number of terms: 98780
- Number of blossaries: 0
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Established in 1896, NFPA's mission is to reduce the worldwide burden of fire and other hazards on the quality of life by providing and advocating consensus codes and standards, research, training, and education.
In a fluidized bed, the rate at which a mass of material is reinjected into the bed. This value is often expressed as the ratio of the amount being reinjected to the total amount being elutriated from the fluidized bed.
Industry:Fire safety
In a fluidized bed, the mass of material being reinjected into the bed divided by the mass of fuel being fed into the bed.
Industry:Fire safety
In a fluidized bed, the lowest velocity sufficient to cause incipient fluidization.
Industry:Fire safety
In a fluidized bed, the control system that regulates the furnace fuel input, furnace air input, bed inventory, and other bed heat transfer mechanisms to maintain the bed temperature and the air-fuel ratio within the limits necessary for continuous combustion and stable bed operation throughout the operating range of the boiler in accordance with demand.
Industry:Fire safety
In a fluidized bed boiler, the state in which a uniform flow of air that is less than that necessary to fluidize the bed is admitted and is found to be sufficient to adequately remove gaseous combustibles.
Industry:Fire safety
In a fluidized bed boiler, the space or volume above the upper surface of the bubbling bed and below the entrance to the convection pass.
Industry:Fire safety
In a fluidized bed boiler, the return or recycling of material removed or carried from the furnace back to the furnace. Also refers to fly ash collected and returned to the furnace or combustion chamber, sometimes expressed as a percent of the total collected.
Industry:Fire safety
In a fluidized bed boiler, generally a gaseous or liquid fuel used to warm the bed material sufficiently to allow ignition of the main fuel upon injection into the heated bed material.
Industry:Fire safety
In a fluidized bed boiler, a warm-up burner located above the bed and firing over or into the bed.
Industry:Fire safety
In a fluidized bed boiler, a constituent that reacts with and captures a pollutant or, more generally, a constituent that reacts with and captures another constituent.
Industry:Fire safety
