DEVELOPMENT OF THE INSTRUMENTATION AND MODELING FOR HEAT TRANSFER CHARACTERISTICS IN CFBC

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This technical report summarizes the research conducted and progress achieved during the period from April 1 1998 to September 30, 1998. The numerical simulation was continued to predict the flow patterns, velocity and pressure without the heat transfer effect in the CFB cold flow model. The air injection side at lower level k=6 showed high pressure profiles as compared with the opposite side of the air injection. Some wakes at upper level k=52 are formed at the top area of the probe. The velocity gradient of level k=6 was sloped down because the mixing of both primary flow and aeration ... continued below

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Creator: Unknown. October 1, 1998.

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Description

This technical report summarizes the research conducted and progress achieved during the period from April 1 1998 to September 30, 1998. The numerical simulation was continued to predict the flow patterns, velocity and pressure without the heat transfer effect in the CFB cold flow model. The air injection side at lower level k=6 showed high pressure profiles as compared with the opposite side of the air injection. Some wakes at upper level k=52 are formed at the top area of the probe. The velocity gradient of level k=6 was sloped down because the mixing of both primary flow and aeration flow reduced the upward flow momentum. The second oscillation of back flow is formed at upper level k=52. The system was configured in 3-D cylindrical coordinates with uniform mesh grids, which is for the numerical simulation of CFB cold model with the heat transfer effect. The basic physical model for flow/heat transfer was introduced to determine the velocity, pressure, temperature, and heat flux in the CFB chamber. Numerical modeling and simulation will be continued to predict the heat transfer effect in the CFB cold model.

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  • Other: DE00007570
  • Report No.: DE-FG22-95MT95013--06
  • Grant Number: FG22-95MT95013
  • DOI: 10.2172/7570 | External Link
  • Office of Scientific & Technical Information Report Number: 7570
  • Archival Resource Key: ark:/67531/metadc703811

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  • October 1, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 8, 2016, 1:53 p.m.

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DEVELOPMENT OF THE INSTRUMENTATION AND MODELING FOR HEAT TRANSFER CHARACTERISTICS IN CFBC, report, October 1, 1998; Morgantown, West Virginia. (digital.library.unt.edu/ark:/67531/metadc703811/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.