Email this article 
PREDIKSI DAN PENGUKURAN KERUGIAN TEKANAN AIR MENGALIR DI DALAM SALURAN MIKRO SEGI EMPAT
Abstract
This paper presents experimental results of pressure drop measurement and prediction of water flowing through a copper rectangular microchannel with a hydraulic diameter of 437 µm. The aim of this work is to identify discrepancies between experimental data and macrochannel theory. An inlet temperature of 60oC was kept constant at the channel entrance and the experiments were performed with Reynolds numbers (based on the mean velocity and hydraulic diameter) ranging up to 4500.
The results show that the pressure drop prediction agrees with the theory. However, the trend of Poiseuille number with the Reynolds number was not constant for laminar flow. This could be due to the entrance effect. Moreover, the friction factor theory could predict the experimental data for turbulent flow. Thus, in this experiment, the theory for flow in macro passages is still applicable.
Full Text:
PDFReferences
Mudawar I., 2001, Assessment of high heat flux thermal management schemes, Transactions on Components and Packaging Technologies, vol. 24, no. 2, pp. 122-140.
Yue, J., Chen, G., Yuan, Q., 2004, Pressure drop of single and two- phase flows through T-type microchannels mixers, Chemical Engineering Journal, vol. 102, pp. 11-24.
Papautsky, I., Brazzle, J., Ameel, T., Frazier, A., B., 1999, Laminar fluid behavior in micro channel using micro polar fluid theory, Sensors and Actuator, vol. 73, pp. 101-108.
Jiang, X.N., Zhou, Z.Y., Yao, J., Li, Y., Ye, X.Y., 1995, Micro-fluid flow in microchannels, The 8th International Conference on Solid State Sensors and Actuators, and Eurosensors IX, Stockholm, Sweden.
Jiang, J., Hao, Y., Shi, M, 2008, Fluid flow and heat transfer characteristics in rectangular microchannels, Heat Transfer Asean Research, vol. 37, no. 4, pp. 197-207.
Wilding, P., Pfahler, J., Bau, H.H., Zemel, J.N., Kricka, L.J., 1994, Manipulation and flow of biological fluids in straight channels micromachined in silicon, Clinical Chemistry, vol. 40, No. 1, pp. 43-47.
Silverio, V, Moreira, A.L.N., 2008, Pressure drop and heat convection in single phase fully developed, laminar flow in microchannels of diverse cross section, 5th European Thermal Science Conference, The Netherlands.
Pfund, D., Rector, D., Shekarriz, A., 2000, Pressure drop measurement in a microchannels, Fluid Mechanics and Transport Phenomena, Vol. 46, No. 8, pp. 1496-1507.
Xu, B., Ooi, K.T., Wong, N.T., 2000, Experimental investigation of flow friction for liquid flow in microchannels, Int. Comn. Heat Mass Transfer, Vol. 27, No. 8, pp. 1165-1176.
Judy, J., Maynes, D., Webb, B.W., 2002, Characterization of frictional pressure drop for liquid flows through microchannels, Int. J. Heat and Mass Transfer, vol. 45, pp. 3477-3489.
Akbari, M., Sinton, D., Bahrami, M., 2009, Pressure drop in rectangular microchannels as compared with theory based on arbitrary cross section, Journal of Fluid Engineering 131, pp. 1-8.
Costaschuck, D., Elsnab, J., Petersen, S., Klewicki, J.C., Ameel, T., 2007, Axial static pressure measurement of water flow in a rectangular microchannel, Exp. Fluid, vol. 43, pp. 907-916.
Bavie`re, R., Le Person, S., Ayela, F., Favre-Marinet, M., 2004, An experimental study of water flow in smooth and rectangular micro-channels, Int. Conference on Microchannel and Minichannel, ASME Publication.
Jiang, P.X., Fan, M.H., Si, G.S., Ren, Z.P., 2001, Thermal hydraulic performance of small scale microchannels and porous media heat exchangers, Int. J. Heat Mass Transfer, vol. 44, pp. 1039-1051.
Kohl, M.J., Abdel-Khalik, S.I., Jeter, S.M., Sadowski, D.L., 2005, An experimental investigation of microchannel flow with internal pressure measurement, Int. J. Heat Mass Transfer, vol. 48, pp. 1518-1533.
Qu, W., Mala, M., 2000, Pressure driven water flow in trapezoidal silicon microchannels, Int. J. Heat Mass Transfer, vol. 43, pp. 353-364.
Harms, T.M., Kazmierczak, M.J., Gerner, F.M., 1999, Developing convective heat transfer in deep rectangular microchannels, Int. Journal of Heat and Fluid Flow, vol. 20, pp. 149-157.
Shah, R.K., London, A.L., 1969, Laminar flow forced convection in ducts, Academic Press, New York.
Potter, M.C., Wiggert, D.C., 1984, Mechanics of fluids, Second Edition, McGraw-Hill, New York.
Coleman, H.W., Steele, W.G., 2009, Experimentation and uncertainty analysis for engineer, John Willey and Son Inc., Second Edition, New York.
Refbacks
- There are currently no refbacks.
Copyright (c) 2017 Dinamika Teknik Mesin
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
