A Study on the Applicability and Performance Improvement
for Air Distribution Unit of Long Subsea Tunnels

doi:10.12972/ksmer.2016.53.2.122

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2016 Vol.53, Issue 2 Preview Page Next Page

Research Paper

A Study on the Applicability and Performance Improvement for Air Distribution Unit of Long Subsea Tunnels 초장대 해저터널 환기유니트의 적용성 및 성능 개선 연구: 조형제·민대기·김종원·이주경·백종훈
HyeongJe Jo, DeaKee Min, JongWon Kim, JuKyung Lee and JongHoon Beak

30 April 2016. pp. 122-129

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Abstract

The Honam-Jeju tunnel, that is currently in progress by virtual design, has adopted a ventilation system,which supplies fresh air to main tunnel via service tunnel for the comfortable environment of passengers andtunnel personnel. This ventilation system requires Air Distribution Unit(ADU). In this study the performance ofADU was evaluated and the way to improve ADU was studied, in tetms of air induction effect by high speedof air stream. As a result, it was identified that ADU employing Venturi effect and Coanda effect is applicableto the ventilation of long subsea tunnel. It was analyzed that the ventilation performance is improved by morethan 340% with Venturi type unit and more than 450% with Coanda type unit.

Keywords

Air Distribution Unit

Venturi Effect

Coanda Effect

Performance improvement

가상설계가 진행중인 호남～제주간의 터널은 터널내 승객 및 작업자에게 쾌적한 환경을 제공하기위해 필요풍량을 서비스터널을 통해 본선터널로 제공하는 환기시스템을 채택하였으며, 이러한 환기시스템을구성하기 위해서는 환기유니트의 설치가 필요하다. 본 연구에서는 터널내의 고속기류 활용 및 기류유인 효과측면에서 환기유니트의 성능평가 및 개선 연구를 수행하였다. 이러한 연구를 바탕으로, 벤츄리 및 코안다 효과를이용한 환기유니트가 초장대 해저터널의 환기를 위해 충분히 적용가능함을 확인하였고, 벤츄리형 환기유니트의경우 340% 이상, 코안다형 환기유니트의 경우 450% 이상, 환기성능을 개선시킬 수 있는 것으로 분석되었다.

키워드

환기유니트

벤츄리 효과

코안다 효과

성능개선

References

Ahmet, B., Cihan, A., Fahri, O. and Mehmet, U., 2009, “Numerical Modeling of Venturi Flows for Determining Air Injection Rates Using Fluent V6.2,” Mathematical and Computational Application, Vol. 14, No. 2, pp. 97-108.
Ansys, 2009, Fluent 12.0 User's Guide, 1st Ed., Vol. 1~3, Ansys, USA.
Charles, P., 1996, “Channel Tunnel Transport System,” Proceedings of the Institution of Civil Engineers, Tomas Telford, London, October 4-5, pp.178-182.
Daniel, W., 2010, “Analysis of Curvature Effects on Boundary Layer Separation and Turbulence Model Accuracy for Circulation Control Applications,” http://digitalcommons. calpoly.edu/aerosp/15.
Dumitrache, A., Frunzulica, F. and Lonescu, T.C., 2012, Mathematical Modelling and Numerical Investigations on the Coanda Effect, INTECH : Nonlinearity, Bifurcation and Chaos - Theory and Applications, Chapter 5, pp. 101-132.
Fairbairn, A.G., 1995, “The Channel Tunnel : Part 4. Transport Systems,” Proceedings of The Institution of Civil Engineers, Tomas Telford, London, October, pp. 34-40.
Gursimran, S.N., Harsh, K., Jaspreet, S., Jay, K. and Prabhjot, S., 2014, “CFD Analysis of Flow Through Venturi,” IJRMET, Vol. 4, Issue. 2, Spl-2, pp. 214-217.
Kim, N.Y. and Rhee, H., 2009, “Review of Euro Tunnel in the View of Ventilation and Disaster,” Korean Society of Civil Endineers, Vol. 57, No. 8, pp. 22-29.
Valeriu, D., 2012, “Aerodynamic and Acoustic Parameters of a Coanda Flow - a Numerical Investigation”, International Transaction Journal of Engineering, Management, and Applied Sciences, and Technologies, Vol. 3, No. 1, pp. 75-85.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 53
No :2
Pages :122-129
DOI :https://doi.org/10.12972/ksmer.2016.53.2.122

[1] Ahmet, B., Cihan, A., Fahri, O. and Mehmet, U., 2009, “Numerical Modeling of Venturi Flows for Determining Air Injection Rates Using Fluent V6.2,” Mathematical and Computational Application, Vol. 14, No. 2, pp. 97-108.

[2] Ansys, 2009, Fluent 12.0 User's Guide, 1st Ed., Vol. 1~3, Ansys, USA.

[3] Charles, P., 1996, “Channel Tunnel Transport System,” Proceedings of the Institution of Civil Engineers, Tomas Telford, London, October 4-5, pp.178-182.

[4] Daniel, W., 2010, “Analysis of Curvature Effects on Boundary Layer Separation and Turbulence Model Accuracy for Circulation Control Applications,” http://digitalcommons. calpoly.edu/aerosp/15.

[5] Dumitrache, A., Frunzulica, F. and Lonescu, T.C., 2012, Mathematical Modelling and Numerical Investigations on the Coanda Effect, INTECH : Nonlinearity, Bifurcation and Chaos - Theory and Applications, Chapter 5, pp. 101-132.

[6] Fairbairn, A.G., 1995, “The Channel Tunnel : Part 4. Transport Systems,” Proceedings of The Institution of Civil Engineers, Tomas Telford, London, October, pp. 34-40.

[7] Gursimran, S.N., Harsh, K., Jaspreet, S., Jay, K. and Prabhjot, S., 2014, “CFD Analysis of Flow Through Venturi,” IJRMET, Vol. 4, Issue. 2, Spl-2, pp. 214-217.

[8] Kim, N.Y. and Rhee, H., 2009, “Review of Euro Tunnel in the View of Ventilation and Disaster,” Korean Society of Civil Endineers, Vol. 57, No. 8, pp. 22-29.

[9] Valeriu, D., 2012, “Aerodynamic and Acoustic Parameters of a Coanda Flow - a Numerical Investigation”, International Transaction Journal of Engineering, Management, and Applied Sciences, and Technologies, Vol. 3, No. 1, pp. 75-85.

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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