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首页> 美国政府科技报告 >Comparison of Dow Corning 544 Antifoam to IIT747 Antifoam in the 1/240 SRAT
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Comparison of Dow Corning 544 Antifoam to IIT747 Antifoam in the 1/240 SRAT

机译：道康宁544消泡剂与1/240 sRaT中IIT747消泡剂的比较

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The Defense Waste Processing Facility requested that the Immobilization Technology Section determine if IIT747 antifoam is suitable for use in DWPF. IIT747 is a new antifoam developed at the Illinois Institute of Technology. HLW-DWPF-TTR-99-00121 also requested that ITS compare the relative effectiveness of IIT747 to Dow Corning 544 antifoam, develop an antifoam addition strategy to minimize foam present during DWPF SRAT and SME processing, and compare hydrogen production, nitrous oxide generation, and foam stability in duplicate experiments varying only the antifoam used. The TTR indicated that bench scale testing might be required to develop the optimum antifoam addition strategy. A task plan was written and approved. Major conclusions from the testing are: IIT747 antifoam was superior overall to Dow Corning 544 antifoam in controlling foam height and eliminating existing foams in these tests; and Fresh Dow Corning 544 antifoam was ineffective at controlling foaming when the SRAT was first brought to boiling at 65-107% of the design basis DWPF boil-up flux (45 lb/hr/ft2).

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