Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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Structural Analysis of TPU Membrane Plate in Multi-purpose Module for Solid-liquid Separation

TPU 재질을 적용한 다목적 고액분리 모듈의 여과판 구조해석

  • Jung, Hee Suk (Plant Engineering Center, Institute for Advanced Engineering) ;
  • Oh, Doo Young (Plant Engineering Center, Institute for Advanced Engineering) ;
  • Ko, Dong Shin (Center for Research & Business Cooperation, Institute for Advanced Engineering) ;
  • Song, Hyoung Woon (Plant Engineering Center, Institute for Advanced Engineering)
  • 정희숙 (고등기술연구원 플랜트엔지니어링본부) ;
  • 오두영 (고등기술연구원 플랜트엔지니어링본부) ;
  • 고동신 (고등기술연구원 산연협력센터) ;
  • 송형운 (고등기술연구원 플랜트엔지니어링본부)
  • Received : 2016.12.09
  • Accepted : 2016.12.28
  • Published : 2017.03.30
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Abstract

Polypropylene is the main existing material in the domestic market being used for the filter plate because of its moldability, low cost, and commercial availability. Polypropylene filter plate once distorted due to the high-pressure during operation may cause the problem in the continuous operation of the solid-liquid separation module. Thermoplastic Poly Urethane (TPU) can be a high-performance alternative material for the filter plate in the solid-liquid separation module of the dehydration process. Hence, to predict and evaluate the TPU for structural stability in the filter plate through analytical techniques designed and experimental verification is essential. As a result, TPU filter plate had maximum strain of 27.85 MPa at 20 bar pressure condition. This result is less than TPU stress-strain limit, which ensures the structural stability of the TPU material.

기존 국내 여과판의 재질은 주로 polypropylene 소재의 여과판을 사용하였으며 그 이유는 성형성이 좋고, 가격이 저렴하며 매우 보편적으로 보급된 소재이기 때문이다. 그러나 고압에 의해 한번 뒤틀려진 polypropylene 소재 여과판은 재사용이 어려우며 가압형 고액분리모듈의 연속 운전에 문제를 야기할 수 있다. 따라서 기존 polypropylene 소재보다 성능이 뛰어난 TPU(Thermoplastic Poly Urethane) 소재개발을 위해 새로운 소재에 대해 설계된 여과판의 구조적 안정성을 해석적 기법을 통해 예측하였다. 20 bar의 압력하중 하에서 TPU를 적용한 여과판은 최대 변형량이 27.85 MPa로 나타났으며 이 값은 TPU 응력-변형률(Stress-Strain) 한계치 이하 값으로 여과판 재질에 대한 구조적 안정성을 확보하였다.

Keywords

References

  1. Kim I. H., Ahn K. H., and Kim I. T., "Policy and Technology Trends for Organic Waste-to-Energy", society for new and renewable energy, pp. 79-79. (2016).
  2. Kim J. H., Choi W. J., and Lim B. S., "Status of Domestic Sewage Sludge Treatment and Improvement Plan for Thermal Recycle of the Sludge via Drying Process", Journal of The Institute of Environmental Studies, pp. 49-58. (2013).
  3. Lee D. J., Lee S. I., KWon Y. H., Bae I. S., and Cho. I. N., "A Study on Environmental and Economic Analysis for Each Treatment of Sewage Sludge(I)", J. of KORRA 24, 3-13. (2016).
  4. Bae, J. K., Hwang, J. W., Ko, H. B., and Ko, B. S., "Study on the analysis of sludge characteristics for incineration and drying system according to sewage sludge characteristics", Journal of Korea society of waste management, 19(3), pp. 283-291. (2002).
  5. http://starletzzang.blogspot.kr/2014/03/ pppolypropylene.html
  6. Choi E. J., Yoon J. H., Jo J. K., Shim S. E., Yun J. H., and Kim I., "Present and Future of Thermoplastic Elastomers As Environmentally Friendly Organic Materials", Elastomers and Composites, 45(3), pp. 170-187. (2010).
  7. Jung E. Y., Kim H. S., Jang D. S., Na E. S., and Kim H. S., "Theoretical Investigation of the dewatering process in a filter press for the treatment of sewage sludge", KSEE(The Korean Society of Environmental Engineers) Spring Conference pp. 1406-1410. (2003)
  8. S. R. Swanson and L. W. Christensen, "Large Deformation Finite Element Calculations for Slightly Compressible Hyperelastic Materials", Computer Struct., 21, pp. 81. (1985). https://doi.org/10.1016/0045-7949(85)90231-7
  9. J. A. Sundberg and B. H. Haggblad, "Large Strain Solutions of Rubber Components", Computer Struct., 17, pp. 835. (1983). https://doi.org/10.1016/0045-7949(83)90097-4
  10. Woo C. S., "A Study on the Fatigue Life Prediction and Evaluation of the Rubber Components", Chungnam National University. (2004).
  11. Jung H. S., Ko D. S., and Song. H. W., "Structural Analysis for Shape Optimization of Filter Plate in Multi-purpose Solid-liquid Separation Module", Journal of Korea Society of Waste Management, 33(2), pp.164-170. (2016). https://doi.org/10.9786/kswm.2016.33.2.164
  12. Yun, S. K. and Park, B. G., "Filtering System Design and Structural Analysis for Intake Water of Ship's Ballast Tank", Journal of the Korean Society of Marine Engineering, pp. 282-287. (2009).