EXPERIMENTAL EVALUATION OF THE COMBUSTION HAZARD TO THE EXPERIMENTAL GAS- COOLED REACTOR-PRELIMINARY BURNING RIG EXPERIMENTS

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>An assembly was constructed which simulated the moderator coolant annulus in the Experimental Gas-Cooled Reactor. This assembly was preheated to various temperatures and air was passed through the coolant annulus. Under certain conditions it was demonstrated that self-sustained combustion of the graphite could occur. Rates of temperature rise were generally less than 1 deg C/ min until the graphite temperature exceeded 700 deg C and then rise rates became very high. In these cxperimcnts, the assembly was not operated in such a manner as to give ignition temperatures eharaeteristic of the EGCR. These tests were designed only to investigate the ... continued below

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Pages: 45

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Dahl, R.E. November 1, 1961.

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Description

>An assembly was constructed which simulated the moderator coolant annulus in the Experimental Gas-Cooled Reactor. This assembly was preheated to various temperatures and air was passed through the coolant annulus. Under certain conditions it was demonstrated that self-sustained combustion of the graphite could occur. Rates of temperature rise were generally less than 1 deg C/ min until the graphite temperature exceeded 700 deg C and then rise rates became very high. In these cxperimcnts, the assembly was not operated in such a manner as to give ignition temperatures eharaeteristic of the EGCR. These tests were designed only to investigate the effects of changing such parameters as the rate of coolant flow, air humidity, prior oxidation on the graphite, and air inlet temperature. A later series of experiments to more closely duplicate the EGCR operating conditions was completed and will be reported in a second report, HW- 71182. (auth)

Physical Description

Pages: 45

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  • Other Information: Orig. Receipt Date: 31-DEC-62

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  • Report No.: HW-67792
  • Grant Number: AT(45-1)-1350
  • DOI: 10.2172/4791773 | External Link
  • Office of Scientific & Technical Information Report Number: 4791773
  • Archival Resource Key: ark:/67531/metadc1059538

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Office of Scientific & Technical Information Technical Reports

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  • November 1, 1961

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 25, 2018, 12:48 p.m.

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Dahl, R.E. EXPERIMENTAL EVALUATION OF THE COMBUSTION HAZARD TO THE EXPERIMENTAL GAS- COOLED REACTOR-PRELIMINARY BURNING RIG EXPERIMENTS, report, November 1, 1961; United States. (digital.library.unt.edu/ark:/67531/metadc1059538/: accessed December 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.