Melting Characteristics of Simulated Non-combustible Radioactive Wastes in a Plasma Torch Melter System

서지정보

ㆍ발행기관 : 한국열환경공학회 ㆍ수록지정보 : 열환경공학 / 8권 / 3호
ㆍ저자명 : Seung-Chul Park, Hyun-Je Cho, Cheon-Woo Kim

목차

1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References

한국어 초록

To reduce the volume of the low- and intermediate-level radioactive wastes and to improve theradionuclide confinement after disposal of the slag product, a 500kW-grade DC plasma torch meltersystem was developed by the KHNP-CRI(Korea Hydro & Nuclear Power Co., LTD Central ResearchInstitute). Main equipment of the system consists of a dual mode plasma torch, a water coolingrefractory melter, an waste feeder, a slag tapping equipment, etc. Especially, the high-technology ofa dual mode operation of plasma torch is realized with the invention of the KHNP-CRI patentedpower supply system. Among a series of dual mode performance tests, a 24-hour melting test fortypical surrogate non-combustible waste is introduced in this paper. Electrical currents and voltagesof the system was well confined under the operation limits at the test. And the slag melt was wellstabilized without severe abnormal behavior as well. But for safe and long-run operation, theadvanced slag tapping equipment and slag level measurement device should be imported to thesystem.

영어 초록

To reduce the volume of the low- and intermediate-level radioactive wastes and to improve the
radionuclide confinement after disposal of the slag product, a 500kW-grade DC plasma torch melter
system was developed by the KHNP-CRI(Korea Hydro & Nuclear Power Co., LTD Central Research
Institute). Main equipment of the system consists of a dual mode plasma torch, a water cooling
refractory melter, an waste feeder, a slag tapping equipment, etc. Especially, the high-technology of
a dual mode operation of plasma torch is realized with the invention of the KHNP-CRI patented
power supply system. Among a series of dual mode performance tests, a 24-hour melting test for
typical surrogate non-combustible waste is introduced in this paper. Electrical currents and voltages
of the system was well confined under the operation limits at the test. And the slag melt was well
stabilized without severe abnormal behavior as well. But for safe and long-run operation, the
advanced slag tapping equipment and slag level measurement device should be imported to the
system.

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