Modeling studies of CFFF (Coal Fired Flow Facility) radiant furnace: Topical report

Technical Report · Wed Jul 01 00:00:00 EDT 1987

OSTI ID:6343880

Lee, J J; Lineberry, J T

Past studies that have been performed at UTSI in modeling of the CFFF radiant furnace are described and summarized. This work has been part of the overall research efforts at UTSI in the development of coal-fired MHD power generation. The radiant furnace is the first major in-line component of the downstream power plant train of this DOE experimental facility. Analytical modeling of the gas dynamics and heat transfer within this component and comparisons formed between theoretical and experimental results have provided a means of gaging its performance and design. Methods developed at UTSI to model the radiant furnace have been tailored to the geometry and other physical aspects of the device. A two dimensional gas dynamic model which utilizes a stream function-vorticity approach to solve the Navier-Stokes equations for compressible, turbulent flows forms the basis for the modeling. This model is capable of treating complex recirculating flows of the type that exist in the CFFF furnace. Various additions and modifications to the basic numerical, gas dynamic model have been incorporated over the course of time to specifically address phenomena that are unique to the furnace. These include coupling of the momentum solution to a fundamental form energy solution which includes all modes of heat transfer, conduction, convection, and radiation. A flux radiative transfer method was developed for this need. In addition, particle dynamics modeling to simulate the trajectories of ash/solids laden flows typical to coal combustion was also incorporated. Other features of the modeling are detailed within this report. 12 refs., 11 figs.

• Research Organization: Tennessee Univ., Tullahoma (USA). Space Inst.
• DOE Contract Number: AC02-79ET10815
• OSTI ID: 6343880
• Report Number(s): DOE/ET/10815-120; UTSI-87-05; ON: DE87012966
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

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