Polymer(Korea), Vol.17, No.2, 136-141, March, 1993
압출 공정에서의 Stochastic 분석
Stochastic Analysis for Extrusion Process
초록
압출공정속의 흐름거동을 분석하기 위하여 stochastic 모델을 적용시켰다. 본 연구는 단축 압출기와 이축압출기에서의 고분자 보류 시간을 측정하여 이론치와 비교하였다. 이축 압출기에서의 흐름 거동을 이론적모델 4가지 세워 검토한 결과 혼합, backward흐름, 스크류간의 이동흐름(transfer flow)을 고려한 모델이 가장 실험치에 근접 하였음을 알 수 있었다.
Stochastic model was applied to analyze the flow behavior in the extruders. In this study, the residence time in single and twin screw extruders was used to compare the experimental and the theoretical results. Four theoretical models were developed for analysis of the flow behavior in the twin screw extruder. Among these theoretical models, the one which considered the mixing backward flow and transfer flow between screws gave the closest result to the experimental one.
- Inoue Y, Yamaguchi K, Kag. Kog., 33, 286 (1969)
- Chen SJ, Fan LT, Watson CA, AIChE J., 18(5), 984 (1972)
- Fan LT, Shin SH, Chem. Eng. Sci., 34, 811 (1979)
- Too JR, Fan LT, Powder Technol., 26, 131 (1980)
- Krambeck FJ, Shinnar R, Katz S, Ind. Eng. Chem. Fundam., 6, 277 (1967)
- Nassar R, Fan LT, Too JR, Fan LS, Chem. Eng. Sci., 36, 1307 (1981)
- Nassar R, Too JR, Fan LT, J. Appl. Sci., 26, 3745 (1981)
- Mann U, Rubinovich M, Crosby EJ, AIChE J., 25(5), 873 (1979)