A Validation/uncertainty Quantification Analysis for a 1.5 MW Oxy-coal Fired L1500 Furnace using a Swirling Boundary Condition

Paper from the AFRC 2016 conference titled A Validation/uncertainty Quantification Analysis for a 1.5 MW Oxy-coal Fired L1500 Furnace using a Swirling Boundary Condition

The work described in this paper is part of the larger mission of the Carbon-Capture Multidisciplinary Simulation Center (CCMSC) (http://ccmsc.utah.edu) at the University of Utah. This paper focuses on a validation/uncertainty quantification (VUQ) study performed on the 1.5 MW L1500 furnace, an oxy-coal; fired facility located at the Industrial Combustion And Gasification Research Facility at the University of Utah. The L1500 is part of the overall project because it includes many of the physics present in full-scale boilers without the complications of multiple burners and very large scales. Experiments and simulations under oxy-coal combustion conditions with a swirling burner have been done in the L1500 furnace with Utah SUFCO coal in order to perform a VUQ analysis. A six-step VUQ framework is used for studying the impact of model; parameter uncertainty on the quantity of interest (QOI) for the overall project, heat flux. Parameters from both the char oxidation and ash deposition models are examined. This paper focuses on the first two steps of the framework. The first step is the selection of model outputs in the experimental and simulation data that are related to the QOI, heat flux. In step 2, an input/uncertainty (I/U) map is developed and all the parameters are assigned a priority. A sensitivity analysis is performed on five parameters in order to reduce the number; of parameters that must be considered in the remaining steps of the framework. The concept of an instrument model is also introduced.