Perpindahan Panas Dan Penurunan Tekanan Pada Saluran Segiempat Dengan Rusuk V 90 Derajat

Khairul Umurani, Arya R. Nasution, D Irwansyah

Abstract


The augmentation of the heat transfer surface using ribs is often used in heat exchanger equipment, aiming to increase heat transfer between the main surface and its fluid. This study uses a rectangular channel with testing on the specimen the number of ribs V 2 with three lengths of 200 mm, a width of 150 mm, and plate thickness of 1 mm. Rectangular air duct consisting of a rectangular duct with dimensions of 150 mm x 75 mm and a length of 2000 mm, suction fan, plate-type electric heater, airflow straightener, U monometer, anemometer, ampere meter, voltmeter, speed controller, and thermocouple. The parameters varied were the incoming airflow velocity, namely 1 m / s, 2m / s, 3 m / s, 4 m / s, and 5m / s. The experimental results heat transfer coefficient at tighter ribs provides better heat transfer. The pressure drop in Pa at the tight rib distance is higher than the pressure drop at the spaced rib spacing


Keywords


Heat transfer; pressure drop; rectangular channel; 90 degrees V rib

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References


Ahn,SW. Kang, AH. Putra, ABK. Lee, DH. 2007 ,An Experimental Investigation of Heat Tranfer and Friction in a Ribbed Square Channel, Journal Process mechanical Engineering. Vol. 221 Part E

Ravi, B.V., Singh, P., and Ekkad, S.V. (2017). Numerical investigation of turbulent flow and heat transfer in two-pass ribbed channels. International Journal of Thermal Sciences 112, 31-43.

E. Lee, L.M. Wright, J.C. Han eat transfer in rotating rectangular channels (AR=4:1) with V-shaped and angled rib turbulators with and without gaps, ASME Paper, (2003) pp. GT2003-38900.

Sara O., Pekdemir T., , Yapici S., Ersahan H., 2000, Thermal performance analysis for solid and perforated blocks attached on a flat surface in duct flow, Energy Conversion & Management, Vol. 41, pp. 1019-1028

Sara ON, Yaplcl S, Ytlmaz M, 2001, Second law analysis of rectangular channels with square pin-fins. Int Commun Heat Mass Transf ;28:617–30.

Sahin B., and Demir A., 2008, “Performance analysis of a heat exchanger having perforated square fins”, Applied Thermal Engineering, Vol. 28, pp. 621–632.

Tahat, M., Kodah Z.H., Jarrah, B.A., and Probert, S.D., 2000, Heat Transfers from Pin-Fin Arrays Experiencing Forced Convection, Applied Energy, Vol. 67, pp. 419-442.

Bilen K., Akyol U., Yapici S., 2001, ”Heat Transfer and Friction Correlations and Thermal Performance Analysis for A Finned Surface”, Energy Conversion & Management, Vol. 42, pp. 107 –1083.

Istanto, T., & Rokhadi, A. W. (2011). Pengujian karakteristik perpindahan panas dan penurunan tekanan sirip-sirip pin ellips susunan selang-seling dalam saluran segiempat : 9, 300–307.

Theeb, A. H. F., & Abdullah, M. (2019). Experimental investigations on heat transfer enhancement for a high aspect ratio rectangular duct roughened by intersecting ribs with inclined ribs, international journal of Energy and environment Vol. 10 (2) pp. 65–76.

V. SriHarsha, S. V. Prabhu, R. P. Vedula Influence of rib height on the local heat transfer distribution and pressure drop in a square channel with 90° continuous and 60° V-broken ribs, Applied Thermal Engineering, 29 (2009) pp. 2444–2459.

Li Q., Chen Z., Flechtner U., Warnecke H.J., 1998, Heat transfer and pressure drop characteristics in rectangular channels with elliptic pin fins, International Journal of Heat and Fluid Flow, Vol. 19, pp. 245-250

Winarno J, Kamal S. 2008. Studi Eksperimental Pengaruh Jumlah dan Diameter Lubang pada Sirip Sekeliling Silinder Luar Terhadap Laju Perpindahan Kalor. Seminar Nasional Aplikasi Sains dan Teknologi 2008 – I st Akprind Yogyakarta: 171-180

.Naphon P., and Sookkasem A., 2007, Investigation on Heat Transfer Characteristics of Tapered Cylinder Pin Fin Heat Sinks”, Energy Conversion and Management, Vol. 48, pp. 2671–2679.

J.C. Han, J.S. Park, C.K. Lei Heat transfer enhancement in channels with turbulence promoters, ASME Journal of Engineering for Gas Turbines and Power, 107 (1985) pp. 628–635.

M.E. Taslim, T. Li, and D.M. Kercher Experimental heat transfer and friction in channels roughened with angled, V-shaped, and discrete ribs on two opposite walls, ASME Journal of Turbomachinery, 118 (1996) pp. 20–28.

K, Umurani., Muharnif, M. (2019). Pengaruh Diameter Lubang Pembangkit Vorteks Winglet Melengkung Terhadap Unjuk Kerja Apk Tipe Kompak Studi Eksperimental. Jurnal Rekayasa Material, Manufaktur Dan Energi, 2(1), 84–93. https://doi.org/doi.org/10.30596/rmme.v2i1.3072

Lu, B., and Jiang, P.-X. (2006). Experimental and numerical investigation of convection heat transfer in a rectangular channel with angled ribs. Experimental Thermal and Fluid Science 30, 513-521.

M. Maurer, J. von Wolfersdorf, M. Gritsch An Experimental and Numerical Study of Heat Transfer and Pressure Losses of V- and WShaped Ribs at High Reynolds Numbers, ASME Paper, (2007) pp. GT2007-27167.

Naik.S., Propert, SD, Shilston, MJ, 1987, “Forced Convective Steady State Heat Transfer from Shrouded Vertically Fin Arrays, Aligned Paralel to An Undisturbed Air Stream”, Applied Energy, Vol. 26, pp. 137–158.




DOI: http://dx.doi.org/10.30596%2Frmme.v4i1.6694

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