Pilot-scale Investigation of Heat Flux and Radiation from an Oxy-coal Flame

Update item information
Title Pilot-scale Investigation of Heat Flux and Radiation from an Oxy-coal Flame
Creator Fry, A.
Contributor Spinti, J., Preciado, I., Diaz-Ibarra, O., Eddings, E.
Date 2015-09-11
Spatial Coverage Salt Lake City, Utah
Subject 2015 AFRC Industrial Combustion Symposium
Description Paper from the AFRC 2015 conference titled Pilot-scale Investigation of Heat Flux and Radiation from an Oxy-coal Flame
Abstract The University of Utah is performing ongoing experiments in their 1.5 MW pulverized coal fired furnace (L1500) to better understand the behavior of oxy-coal flames and to provide operating data sets for model validation. In this particular study, the furnace was fired on a Utah Bituminous (Sufco) coal with oxygen and flue gas recycle. A number of experiments were performed throughout a week period, all with identical operating conditions. The multiple sets of data will be used to quantify the repeatability of conditions and the uncertainty in measured values. For these tests the furnace was fitted with 8 water cooled tube bundles in the first four sections of the reactor. The temperature of the water in and out and the temperature of tube surface were measured, along with the cooling water flow rate. A set of three radiometers were installed in the near flame region. These devices were configured to differentiate between radiation from the hot refractory walls and from the coal flame. From these data the heat flux could be determined by multiple methods at four axial locations relative to the flame. Close scrutiny of the heat flux and radiometer data indicate that these techniques are sensitive enough to resolve changes in burner operating conditions. However the magnitude of the heat transfer is not constant throughout a test period due to accumulation of ash on heat transfer and background surfaces.
Type Event
Format application/pdf
Rights No copyright issues exist
OCR Text Show
ARK ark:/87278/s6rn7jsg
Setname uu_afrc
Date Created 2018-11-30
Date Modified 2018-11-30
ID 1387839
Reference URL https://collections.lib.utah.edu/ark:/87278/s6rn7jsg