Efek Medan Magnet Terhadap Kerugian Jatuh Tekanan

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<p>Efek Medan Magnet Terhadap Kerugian Jatuh Tekanan pada Aliran Nanofluida TiO2 dan Al2O3 dalam Pipa Bulat</p> <p>UNIVERSITAS INDONESIAJulyanto Leonardo</p> <p>M. L Bintang Lazuardi</p> <p>Pendahuluan</p> <p>Salah satu cara untuk mengurangi pemakaian energi (nilai kerugian jatuh tekanan/pressure drop) yaitu dengan metode Magnetohydrodynamics (MHD).</p> <p>UNIVERSITAS INDONESIA</p> <p>Drag Reduction</p> <p>UNIVERSITAS INDONESIA</p> <p>Tujuan</p> <p>Mengetahui efek MHD (Magnetohydrodynamics) pada aliran pipa dengan fluida kerja nanofluida TiO2 dan Al2O3.</p> <p>UNIVERSITAS INDONESIA</p> <p>Eksperimen Set up Alat</p> <p>UNIVERSITAS INDONESIA</p> <p>Eksperimen Set up Alat</p> <p>UNIVERSITAS INDONESIA</p> <p>Fluida UjiTiO2 Al2O3</p> <p>UNIVERSITAS INDONESIA</p> <p>Formulasi</p> <p>Dh f u L g D</p> <p>= beda ketinggian manometer 1 dan 2 = koefisien gesek = kecepatan aliran fluida = panjang pipa = gaya gravitasi = diameter dalam pipa</p> <p>DR % = persentase drag reduction f = koefisien gesek</p> <p>UNIVERSITAS INDONESIA</p> <p>Hasil dan Pembahasan</p> <p>UNIVERSITAS INDONESIA</p> <p>Air4x10-2</p> <p>Blasius Air</p> <p>3x10</p> <p>-2</p> <p>f</p> <p>2x10</p> <p>-2</p> <p>4x10</p> <p>4</p> <p>5x10</p> <p>4</p> <p>6x10</p> <p>4</p> <p>Re</p> <p>UNIVERSITAS INDONESIA</p> <p>Air + Magnet4x10-2</p> <p>Blasius Air Air + Magnet</p> <p>3x10</p> <p>-2</p> <p>f2x10-2</p> <p>4x10</p> <p>4</p> <p>5x10</p> <p>4</p> <p>6x10</p> <p>4</p> <p>Re</p> <p>UNIVERSITAS INDONESIA</p> <p>Nanofluida TiO24x10-2</p> <p>Blasius Air TiO2</p> <p>3x10</p> <p>-2</p> <p>f2x10-2</p> <p>4x10</p> <p>4</p> <p>5x10</p> <p>4</p> <p>6x10</p> <p>4</p> <p>Re</p> <p>UNIVERSITAS INDONESIA</p> <p>Nanofluida TiO2 + Magnet4x10-2</p> <p>Blasius Air TiO2 + Magnet</p> <p>3x10</p> <p>-2</p> <p>f2x10-2</p> <p>4x10</p> <p>4</p> <p>5x10</p> <p>4</p> <p>6x10</p> <p>4</p> <p>Re</p> <p>UNIVERSITAS INDONESIA</p> <p>Analisis Data Nanofluida TiO225</p> <p>Air + Magnet TiO2 TiO2 + Magnet</p> <p>20</p> <p>15</p> <p>DR %</p> <p>10</p> <p>5</p> <p>0 4x104</p> <p>4,5x10</p> <p>4</p> <p>5x10</p> <p>4</p> <p>5,5x10</p> <p>4</p> <p>Re</p> <p>UNIVERSITAS INDONESIA</p> <p>Nanofluida Al2O34x10-2</p> <p>Blasius Air Al2O3</p> <p>3x10</p> <p>-2</p> <p>f2x10-2</p> <p>4x10</p> <p>4</p> <p>5x10</p> <p>4</p> <p>6x10</p> <p>4</p> <p>Re</p> <p>UNIVERSITAS INDONESIA</p> <p>Nanofluida Al2O3 + Magnet4x10-2</p> <p>Blasius Air Al2O3 + Magnet</p> <p>3x10</p> <p>-2</p> <p>f2x10-2</p> <p>4x10</p> <p>4</p> <p>5x10</p> <p>4</p> <p>6x10</p> <p>4</p> <p>Re</p> <p>UNIVERSITAS INDONESIA</p> <p>Analisis Data Nanofluida Al2O325</p> <p>Air + Magnet Al2O3 Al2O3 + Magnet</p> <p>20</p> <p>15</p> <p>DR %</p> <p>10</p> <p>5</p> <p>0 4x104</p> <p>4,5x10</p> <p>4</p> <p>5x10</p> <p>4</p> <p>5,5x10</p> <p>4</p> <p>Re</p> <p>UNIVERSITAS INDONESIA</p> <p>Kesimpulan</p> <p>Penambahan medan magnet dapat mengurangi koefisien gesek (friction). Campuran partikel TiO2 dan Al2O3 memiliki pengaruh terhadap koefisien gesek aliran. Dari seluruh percobaan, persentase drag reduction paling besar terjadi pada nanofluida TiO2 menggunakan magnet pada Re = 40000 sebesar 20,9%.</p> <p>UNIVERSITAS INDONESIA</p> <p>Referensi1.</p> <p>A. Tsinober, MHD Flow Drag Reduction, in Viscous Drag Reduction in Boundary Layers, American Institute of Astronoutics and Aeronautics, 1990. Hayder A. Abdul Bari, Yue Kim Kor, Magnetic force as Drag Reduction Enhancer in Pipeline Transportation : En Experimental Approach. International Conference on Environtmental and Industrial Innovation, IPCBEE Vol. 12, 2011, Singapore : IACSIT Press. Henoch, C., Stace, J., Experimental investigation of a saltwater turbulent boundary layer modified by an applied streamwise magnetohydronamic body force. Physics of Fluids 7 (6), 13711383. 1995 Hoyt, J. W., 1972. The Effect of Additives on Fluid Friction, J. of Basic Engineering. Trans. ASME. Series D, Vol. 94., pp.258-285. Kumar, K.L., Engineering Fluid Mechanics, Eurasia Publishing House Ltd., 2000 M. S. Tillack, N. B. Morley. Magnetohydrodynamics, Standard Handbook for electrical engineers, McGraw Hill, 14th Edition. 1998. Munson, B.R., Fundamentals of Fluid Mechanics 4th Ed, John Wiley &amp; Sons, Inc. 2000 Murenzi, D. and Descamps, T. The Benefits of utilizing a Drag Reduction Agent (DRA). World Pipelines, July 2008 Smits, A.J., A, Physical Introduction to Fluid Mechanics, John Wiley &amp; Sons, Inc. 2000 Watanabe, K., Yanuar., and H Udagawa, Drag Reduction of Newtonian fluid in a Circular Pipe with Highly Water-Repellent Wall. Journal of Fluid Mech., p. 225. 1999. White A, Turbulent drag reduction with Polimer Additives, Journal Mechanical Engineering Science, Vol 8. No. 4, 1966.</p> <p>2.</p> <p>3.</p> <p>4.</p> <p>5. 6.</p> <p>7. 8.</p> <p>9. 10.</p> <p>11.</p> <p>UNIVERSITAS INDONESIA</p> <p>THANK YOU</p> <p>UNIVERSITAS INDONESIA</p>