Penggunaan Hukum Hagen-Poiseuille dalam Penentuan Koefisien Viskositas Zat Cair dengan Prinsip Kontrol Berat Berbantuan Software Logger Pro
DOI:
https://doi.org/10.12928/jrkpf.v4i2.8165Abstract
Pengukuran koefisien viskositas zat cair menggunakan hukum Hagen-Poiseuille dengan metode Microcomputer Based Laboratory telah dilakukan. Viskositas merupakan ukuran penolakan fluida terhadap perubahan bentuk di bawah tekanan shear. Hukum Hagen-Poiseuille digunakan dalam penelitian ini karena zat cair yang digunakan merupakan zat cair Newtonian. Tangki viskometer kapiler yang dikaitkan ke sensor gaya diisi zat cair untuk kemudian dialirkan keluar melalui pipa kapiler dengan panjang (9,8±0,09)10-2 m dan diameter dalam (2,1620±0,0096) 10-3 m. Data penurunan massa zat cair direkam menggunakan sensor gaya buatan Vernier Tecnology dan analisis fitting data menggunakan software Logger Pro. Nilai karakteristik waktu diperoleh dari hasil fitting data digunakan untuk perhitungan koefisien viskositas zat cair menggunakan hukum Hagen-Poiseuille. Dari percobaan ini diperoleh nilai koefisien viskositas air sebesar (1,063±0,113) mPa.s yang sesuai dengan nilai acuan teori yaitu 1,002 mPa.s, oli SAE 10W-30 sebesar (79,01±8,90) Pa.s sesuai dengan nilai acuan teori 76,8 Pa.s, dan gliserin sebesar (593,4±56,7) mPa.s sesuai dengan nilai acuan teori 612 mPa.s.
Measurement of liquid viscosity coefficient using Hagen-Poiseuille law with Microcomputer-Based Laboratory method has been done. Viscosity is the fluid declination measure of form changes under sheer pressure. Hagen-Poiseuille law is used in this study because the liquid used is a Newtonian liquid. Capillary viscometer tanks attached to force sensors are filled with liquid to be streamed out through capillary tubes of length (9.8 ± 0.09)10-2 m and the inner diameter (2.1620 ± 0.0096)10-3 m. Data on the mass degradation of liquids was recorded using a Vernier Technology force sensor while the data fitting analysis using Logger Pro software. The time characteristic values which obtained from the data fittings are used in the calculation of the liquid viscosity coefficient using Hagen-Poiseuille law. From this experiment, the obtained water viscosity coefficient value is (1.063± 0.113) mPa.s corresponds to the reference value of the theory is 1.002 mPa.s, the SAE oil 10W-30 is (79.01± 8.90) Pa.s corresponds to the reference value of the theory 76.8 Pa.s, and glycerin is (593.4± 56.7) mPa.s corresponds to the reference value of the theory 612 mPa.s.
References
Kwon K, Sammalah P, dan Sanjeev R. 1999. “Experiments On Viscosity of Aqueous Glycerol Solutions Using a Tank-Tube Viscometerâ€. Chemical Engineering Education Division of ASEE. 1999
Nevers, N.D. 1991. Fluids mechanics for Chemical Engineer, 2nd ed. McGraw-Hill.New York
McCabe, W.L, Smith, J.C., and Harriot, P. 1993. Unit Operations of Chemical Engineers, 5th ed. McGrawhill.New York
Hermawati Y.M, Sri W Suciyati, dan Warsito. 2013. “Uji Viskositas Fluida Menggunakan Transduser Ultrasonik sebagai Fungsi Temperatur dan Akuisisinya pada Komputer Menggunakan Universal Serial Bus (USB)â€. Jurnal Teori dan Aplikasi Fisika Vol, 01, No. 01, Januari 2013
Kestin J, Sokolov M, dan Wakeham W.A.1978. Viscosity of Liquid Water in The Range -8c to 150Ëšc. Journals of Physics. Chemistry. Ref.Data, Vol. 7, No. 1978.
KEW Engineering Ltd. 2017. “Oil Viscosity Explainedâ€. http://www.kewengineering.co.uk/Auto_oils/oil_viscosity_explained.htm. diakses pada: 12 Mei 2017
Segur, J.B. dan Helen. E. Oberstar.1949. “Viscosity of Glycerol and Its Aqueous Solutionsâ€. The Miner Laboratories Industrial and Engineering Chemistry. Vol. 43, No. 9.
Nauenberg, M. 2014. “A Paradox with the Hagen-Poiseuille Relation for Viscous Fluid Flowâ€. American Journals of Physics, Vol. 82, No. 1, Januari 2014
Waxman, M.A. 2010. Using Physics to Investigate Blood Flow in Arteries: A Case Study for Premed Students. American Journals of Physics. Vol 78, 970-973
Digilov, R. M. dan M. Reiner, 2005, “Weight-Controlled Capillary Viscometerâ€. American Journals of Physics Teacher. 73 (11), November 2005
Fairman S J, Joseph A. Johnson, dan Thomas A. Walkiewicz. 2003. “Fluid Flow with Logger Proâ€. The Physics Teacher. Vol 41. September 2003
Downloads
Published
Issue
Section
License
COPYRIGHT TRANSFER FORM
The copyright to this article is transferred to Universitas Ahmad Dahlan (UAD) 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 UAD. 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.
We declare that:
- This paper has not been published in the same form elsewhere.
- It will not be submitted anywhere else for publication prior to acceptance/rejection by this Journal.
- A copyright permission is obtained for materials published elsewhere and which require this permission for reproduction.
Furthermore, I/We hereby transfer the unlimited rights of publication of the above mentioned paper in whole to UAD. The copyright transfer covers the exclusive right to reproduce and distribute the article, including reprints, translations, photographic reproductions, micro form, electronic form (offline, online) or any other reproductions of similar nature.
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 authors personal use or for company use, provided that the source and the UAD copyright notice are indicated, the copies are not used in any way that implies UAD endorsement of a product or service of any employer, and the copies themselves are not offered for sale.
- Although authors are permitted to re-use all or portions of the Work in other works, this does not include granting third-party requests for reprinting, republishing, or other types of re-use.
