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Inventi Impact - Tech Research & Reviews

Articles

  • Inventi:etr/112/14
    PRELIMINARY EXPERIMENTAL STUDY ON PRESSURE LOSS COEFFICIENTS OF EXHAUST MANIFOLD JUNCTION
    Xiao-lu Lu, Kun Zhang, Wen-hui Wang, Shao-ming Wang, Kang-yao Deng

    The flow characteristic of exhaust system has an important impact on inlet boundary of the turbine. In this paper, high speed flow in a diesel exhaust manifold junction was tested and simulated. The pressure loss coefficient of the junction flow was analyzed. The steady experimental results indicated that both of static pressure loss coefficients L13 and L23 first increased and then decreased with the increase of mass flow ratio of lateral branch and public manifold. The total pressure loss coefficient K13 always increased with the increase of mass flow ratio of junctions 1 and 3. The total pressure loss coefficient K23 first increased and then decreased with the increase of mass flow ratio of junctions 2 and 3. These pressure loss coefficients of the exhaust pipe junctions can be used in exhaust flow and turbine inlet boundary conditions analysis. In addition, simulating calculation was conducted to analyze the effect of branch angle on total pressure loss coefficient. According to the calculation results, total pressure loss coefficient was almost the same at lowmass flow rate of branchmanifold 1 but increased with lateral branch angle at highmass flow rate of branchmanifold 1.

    How to Cite this Article
    CC Compliant Citation: Xiao-lu Lu, Kun Zhang, Wen-hui Wang, Shao-ming Wang, and Kang-yao Deng, “Preliminary Experimental Study on Pressure Loss Coefficients of Exhaust Manifold Junction,” International Journal of Rotating Machinery, vol. 2014, Article ID 316498, 10 pages, 2014. doi:10.1155/2014/316498. Copyright © 2014 Xiao-lu Lu et al. This article is distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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