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Numerical Study on Cooling Effect of Engine Room Enclosure System

[+] Author Affiliations
Yee Seok Bae, Geun Jong Yoo, Hoon Ki Choi

Changwon National University, Changwon, Gyeongnam, South Korea

Paper No. IMECE2008-68399, pp. 33-38; 6 pages
doi:10.1115/IMECE2008-68399
From:
  • ASME 2008 International Mechanical Engineering Congress and Exposition
  • Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C
  • Boston, Massachusetts, USA, October 31–November 6, 2008
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4871-5 | eISBN: 978-0-7918-3840-2
  • Copyright © 2008 by ASME

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-ε 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. Cold flow analysis result shows reasonable agreement with experimental data. Analysis results show direct effect of velocity and temperature distribution on cooling ability in the enclosure system. Comparing with analysis result for the engine room which has no enclosure system, the case of total enclosure system which has box hole flow path shows the reasonable cooling capacity with noise reduction effect.

Copyright © 2008 by ASME
Topics: Cooling , Engines

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