Browse > Article

NUMERICAL STUDY FOR COOLING CAPACITY IMPROVEMENT OF ENGINE ROOM ENCLOSURE SYSTEM  

Bae, Y.S. (창원대학교 대학원 기계설계공학과)
Yoo, G.J. (창원대학교 기계설계공학과)
Choi, H.K. (창원대학교 기계설계공학과)
Publication Information
Journal of computational fluids engineering / v.14, no.2, 2009 , pp. 39-45 More about this Journal
Abstract
In engine room, proper enclosure system is preferable for reducing noise level but the enclosure system in the engine room causes bad influence on cooling performance due to poor ventilation. Cooling efficiency of the enclosure system can be improved by varying fan speed and proper flow path for ventilation. In this study, numerical analysis is performed to assess cooling effect of the enclosure system using finite volume method. The RNG k-$\varepsilon$ model is adopted for turbulence model along with heat exchanger model and porous media model for heat exchanger analysis, and moving reference frame model for rotational fan. Verification result shows reasonable agreement with experimental data. Analysis results show direct effect of velocity and temperature distribution on cooling ability in the enclosure system. Enclosure system of case B shows high heat transfer coefficient and has the smallest area ratio of opened flow passages which is good for noise level reduction.
Keywords
Numerical Analysis; Engine Room; Enclosure System; Capacity Improvement; Heat Transfer Coefficient;
Citations & Related Records
연도 인용수 순위
  • Reference
1 2008, Bae, Y.S., Yoo, G.J. and Choi, H.K., "Preliminary numerical study on heat transfer effect of enclosure system," Proceedings of the KSME 2008 fluid dynamics spring annual meeting, pp.568-571
2 2000, Lim, J.W. and Lee, S.H., "Engine room cooling system using jet pump," Proceedings of the KSME (B) 2000 spring annual meeting, pp.162-167   과학기술학회마을
3 2008, Bilgen, A. and Balkaya, A., "Natural convection on discrete heaters is in a square enclosure with ventilation ports," International Journal of Heat and Fluid flow, Vol.29, No.4, pp.1182-1189   DOI   ScienceOn
4 1998, Tandon, N., Nakra, B.C., Ubhe, D.R. and Killa, N.K., "Noise Control of Engine Driven Portable Generator Set," Applied Acoustics, Vol.55, No.4, pp.307-328   DOI   ScienceOn
5 2003, Gonzalez, A., Ferrer, M., de Diego, M., Piñero, G. and Garcia-Bonito, J.J., "Sound quality of low-frequency and car engine noises after active noise control," Journal of Sound and Vibration, Vol.265, pp.663-679   DOI   ScienceOn
6 1999, Choi, J.W., Kim, K.E. and Lee, H.J., "Simple Design Method of the Engine Enclosure Considering Cooling and Noise Reduction," Journal of the korean society for noise and vibration engineering, Vol.9, No.1, pp.184-188   과학기술학회마을
7 1999, Ryu, J.S., Jung, W.J. and Jeon, J.J., "Design of Close-Fitting Acoustic Enclosure of Diesel Engine," Journal of the korea institute of military science and technology, Vol.2, No.1, pp.82-89
8 2007, Mahapatra, S.K., Sarkar, A. and Sarka, A., "Numerical simulation of opposing mixed convection in differentially heated square enclosure with partition," International Journal of Thermal Sciences, Vol.46, pp.970-979   DOI   ScienceOn
9 1992, Yakhot, V., Orszag, S.A., Thangman, S., Gatski, T.B. and Speziale, C.G., "Development of turbulence models for shear flows by a double expansion technique," Phys. Fluid, Vol.4, pp.1510-1520   DOI
10 2008, Ben-Nakhi, A., M.Mahmoud, A., A.Mahnoud, M. and Dashti, A.A., "Improving thermal performance of the roof enclosure of heavy construction buildings," Applied Energy, Vol.85, pp.911-930   DOI   ScienceOn
11 2008, Bae, Y.S., Yoo, G.J. and Choi, H.K., "Numerical Study on Cooling Effect of Engine Room Enclosure System," Proceedings of 2008 ASME International Mechanical Engineering congress and Exposition, IMECE2008-68399
12 2007, Fluent 6.3 User's Guide, Fluent Inc.
13 2006, Larsson, G., Saine, K., Johansson, C.G. and Abom, M., "Noise reduction with an enclosure for large medium speed diesel engines," Noise control;Euronoise 2006, pp.SS33-472