Performance Analysis of The Effect on Insertion Guide Vanes For Rectangular Elbow 900 Cross Section
The use of elbow or curved pipe in the installation of piping has a loss of pressure (pressure drop) which could lead the power of pump that drive the fluid and decrease the energy efficiency of the system. The pressure drop is caused by the curved shape of the elbow that cause pressure on the outer wall (outter) larger and blocking off the pace of the fluid, and flow pressure losses caused by friction, flow separation and secondary flow. A method that can be used to reduce flow separation and pressure loss in the elbow is by the insertion guide vane. The test model in the form of rectangular elbow 900Â with a radius ratio (rc/Dh) = 1.1249 without using a guide vane and number of guide vane insertion one until three guide vanes. With Reynolds number ReDh â‰ˆ 8.6 Ã— 104. The velocity inlet is uniform, the measured variable is static pressure. Static pressure was measured using an inclined manometer. With variation the number of guide vane gives a more effect on the value of pressure drop, the largest pressure drop until 123.35% compared to that without guide vane. The velocity distribution profile on the outlet side becomes more uniform. The magnitude of this pressure drop occurs as a result of the increased flow friction and its secondary flow become smaller.
Cheng, D.Y., Laminar Flow Elbow System and Method, U.S. Patent Documents, No. 5,323,661, 1994
Haskew, J.T., & Sharif, M. A. R., Perfomance Evaluation of Vaned Pipe Bend in Turbulent Flow of Liquid Propellants, In Appl, Math. Modelling Vol 21, Elsevier Inc, 1997
Kim, W.J. & Patel, C., Influence of Streamwise Curvature on Longitudinal Vortices Imbeded in Turbulent Boundary Layers, J. Of Fluid Engineering, 123, pp. 211-218, 2001
Miller, D.S., Internal flow systems, 2nd edition, BHRA (Information Service), 1990
Sutardi, dkk., Experimental Study On The Effect Of Guide Vane Insertion And Reynolds Numbers On The Flow Pressure Drop In A 900 Rectangular Elbow, jurusan teknik mesin, FTI-ITS, 2010 Taylor, E.S., â€œSecondary flowâ€, National Commiter for Fluida Mechanics Films, 1968
Taylor, E.S., Secondary flow, National Commiter for Fluida Mechanics Films, 1968
Williams, R. W., Computional Study of Duct and Pipe Flows Using The Method of Pseudo-Compressibility, AIAA Paper 91-1656, 1991
The copyright to this article is transferred to Politeknik Elektronika Negeri Surabaya(PENS) if and when the article is accepted for publication. The undersigned hereby transfers any and all rights in and to the paper including without limitation all copyrights to PENS. The undersigned hereby represents and warrants that the paper is original and that he/she is the author of the paper, except for material that is clearly identified as to its original source, with permission notices from the copyright owners where required. The undersigned represents that he/she has the power and authority to make and execute this assignment. The copyright transfer form can be downloaded here .
The corresponding author signs for and accepts responsibility for releasing this material on behalf of any and all co-authors. This agreement is to be signed by at least one of the authors who have obtained the assent of the co-author(s) where applicable. After submission of this agreement signed by the corresponding author, changes of authorship or in the order of the authors listed will not be accepted.
Retained Rights/Terms and Conditions
- Authors retain all proprietary rights in any process, procedure, or article of manufacture described in the Work.
- Authors may reproduce or authorize others to reproduce the work or derivative works for the author’s personal use or company use, provided that the source and the copyright notice of Politeknik Elektronika Negeri Surabaya (PENS) publisher are indicated.
- Authors are allowed to use and reuse their articles under the same CC-BY-NC-SA license as third parties.
- Third-parties are allowed to share and adapt the publication work for all non-commercial purposes and if they remix, transform, or build upon the material, they must distribute under the same license as the original.
To avoid plagiarism activities, the manuscript will be checked twice by the Editorial Board of the EMITTER International Journal of Engineering Technology (EMITTER Journal) using iThenticate Plagiarism Checker and the CrossCheck plagiarism screening service. The similarity score of a manuscript has should be less than 25%. The manuscript that plagiarizes another author’s work or author's own will be rejected by EMITTER Journal.
Authors are expected to comply with EMITTER Journal's plagiarism rules by downloading and signing the plagiarism declaration form here and resubmitting the form, along with the copyright transfer form via online submission.