Impact Of Melter Internal Design On Off-Gas Flammability

Choi, An-Seop; Lee, S. Y.

doi:10.2172/1052404

Cited by 3 publications

(5 citation statements)

References 11 publications

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“…Likewise, the DWPF melter maintains a dedicated air purge through the backup film cooler which was shown to form an air jet extending down to the cold cap, providing good mixing by entrainment. 5 This assumption enables the use of T gas as the representative gas temperature for the entire vapor space.…”

Section: Well-mixed Reactormentioning

confidence: 99%

“…The CEF is a 1/11 th scale DWPF melter based on the effective melt surface area, excluding those areas occupied by various penetrations. 5 It was used in 2010 to study the impact of glass bubblers on melter off-gas surging (Phase 1), 6 and the frequency and intensity of off-gas surges during bubbled and non-bubbled CEF runs were found to be prototypic of the DWPF melter pressure spike data collected during the 6 months before and 6 months after the bubblers went into operation. 7 The CEF was also shown to be prototypic in terms of predicting the flammability potential of the DWPF melter off-gas; 8 the predicted concentrations of H 2 and CO by the existing DWPF melter off-gas flammability model correctly trended and further bounded the respective measured data in the offgas produced with the NFA flowsheet feed during the Phase 1 CEF run.…”

Section: Introductionmentioning

confidence: 99%

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DWPF Melter Off-Gas Chemistry Model for the Nitric-Glycolic Acid Flowsheet

Choi

2018

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Smith of Savannah River Remediation throughout the course of this study are greatly appreciated. The author also would like to recognize the immense contributions made by F. C. Johnson (Lead), and the rest of the CEF Team members to the successful planning and execution of the CEF Phase 2 test. The author would like to particularly single out F. C. Johnson for her dedication and efforts to coordinate post-run analysis of a countless number of feed, glass, and condensate samples taken throughout the test. The author also would like to point out that the dedication by J. R. Zamecnik in setting up the comprehensive off-gas sampling system, collecting and post-run processing of a very large amount of off-gas data as well as providing a thorough and critical technical review of Revision 1 calculations was central to the successful completion of this study. A timely and thorough technical review of the calculations made in Revision 0 and the report content provided by F. G. Smith and W. E. Daniel are also appreciated.

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Section: Well-mixed Reactormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

DWPF Melter Off-Gas Chemistry Model for the Nitric-Glycolic Acid Flowsheet

Choi

2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…Likewise, the DWPF melter maintains a dedicated air purge through the backup film cooler which was shown to form an air jet extending down to the cold cap, providing good mixing by entrainment. 5 This assumption enabled the use of T gas as the representative gas temperature for the entire vapor space.…”

Section: Well-mixed Reactormentioning

confidence: 99%

“…3 The CEF is a 1/11 th scale DWPF melter based on the effective melt surface area, excluding those areas occupied by various penetrations. 5 It was used in 2010 to study the impact of glass bubblers on melter off-gas surging, 6 and the frequency and intensity of the off-gas surges during bubbled and non-bubbled CEF operations were found to be prototypic of the DWPF melter pressure spike data collected during the 6 months before and 6 months after the bubblers went into operation. 7 The CEF was also shown to be prototypic in terms of predicting the flammability potential of the DWPF melter off-gas; 8 the predicted concentrations of H 2 and CO by the existing DWPF melter off-gas flammability model correctly trended and further bounded the respective measured data in the off-gas produced with the NFA flowsheet feed during CEF Phase 1.…”

Section: Introductionmentioning

confidence: 99%

DWPF Melter Off-Gas Flammability Model for the Nitric-Glycolic Acid Flowsheet

Choi¹

2014

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Smith of Savannah River Remediation throughout the course of this study are greatly appreciated. The author also would like to recognize the immense contributions made by F. C. Johnson (Lead), and the rest of the CEF Team members to the successful planning and execution of the CEF Phase 2 Run. The author would like to particularly single out F. C. Johnson for her dedication and efforts to coordinate post-run analysis of a too-numerous-to-count number of samples and for keeping everything in order. The author also would like to point out that the dedication by J. R. Zamecnik in setting up the comprehensive off-gas sampling system and collecting and post-run processing of a very large amount of off-gas data was central to the successful completion of this study. A timely and thorough technical review of the calculations made in this study and the report content provided by F. G. Smith and W. E. Daniel are also appreciated. Finally, support, motivation and encouragement by management (Dave McGuire) were essential to helping the author stay focused and on track for the duration of this study.

show abstract

“…The CEF is a 1/11 th scale DWPF melter based on the effective melt surface area, excluding those areas occupied by various penetrations. 3 It was used in 2010 to study the impact of glass bubblers on melter off-gas surging, 4 and the frequency and intensity of the off-gas surges during bubbled and non-bubbled CEF operations were found to be prototypic of the DWPF melter pressure spike data collected during 6 months before and 6 months after the bubblers went into operation. 5 However, it is yet to be verified whether the CEF off-gas will exhibit the flammability potential that is also prototypic of the DWPF melter.…”

Section: Introductionmentioning

confidence: 99%

Data Analysis and Model Validation (2013 CEF Run - Phase 1)

Choi¹

2014

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Impact Of Melter Internal Design On Off-Gas Flammability

Cited by 3 publications

References 11 publications

DWPF Melter Off-Gas Chemistry Model for the Nitric-Glycolic Acid Flowsheet

DWPF Melter Off-Gas Chemistry Model for the Nitric-Glycolic Acid Flowsheet

DWPF Melter Off-Gas Flammability Model for the Nitric-Glycolic Acid Flowsheet

Data Analysis and Model Validation (2013 CEF Run - Phase 1)

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