Numerical Study on Application of CuO-Water Nanofluid in Automotive Diesel Engine Radiator

Navid Bozorgan, Komalangan Krishnakumar, Nariman Bozorgan

Department of Mechanical Engineering, Abadan Branch, Islamic Azad University, Abadan, Iran.
Department of Mechanical Engineering, College of Engineering, Trivandrum, India.

DOI: 10.4236/mme.2012.24017                

Abstract

Application of CuO-water nanofluid with size of the nanoparticles of 20 nm and volume concentrations up 2% is numerically investigated in a radiator of Chevrolet Suburban diesel engine under turbulent flow conditions. The heat transfer relations between airflow and nanofluid coolant have been obtained to evaluate local convective and overall heat transfer coefficients and also pumping power for nanofluid flowing in the radiator with a given heat exchange capacity. In the present study, the effects of the automotive speed and Reynolds number of the nanofluid in the different volume concentrations on the radiator performance are also investigated. The results show that for CuO-water nanofluid at 2% volume concentration circulating through the flat tubes with Re_nf = 6000 while the automotive speed is 70 km/hr, the overall heat transfer coefficient and pumping power are approximately 10% and 23.8% more than that of base fluid for given conditions, respectively.

Keywords

Automotive Diesel Engine Radiator; CuO-Water Nanofluid; Turbulent Flow; Heat Transfer; Pumping Power

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	S. U. S. Choi and J. A. Eastman, “Enhancing Thermal Conductivity of Fluids with Nanoparticles,” ASME International Mechanical Congress and Exposition, San Francisco, 12-17 November 1995.
[2]	S. M. Peyghambarzadeh, S. H. Hashemabadi., S. M. Hoseini and M. S. Jamnani, “Experimental Study of Heat Transfer Enhancement Using Water/Ethylene Glycol Based Nanofluids as a New Coolant for Car Radiators,” International Communications in Heat and Mass Transfer, Vol. 38, No. 9, 2011, pp. 1283-1290. doi:10.1016/j.icheatmasstransfer.2011.07.001
[3]	E. Ollivier, J. Bellettre, M. Tazerout and G. C. Roy, “Detection of Knock Occurrence in a Gas SI Engine from a Heat Transfer Analysis,” Energy Conversion and Management, Vol. 47, No. 7-8, 2006, pp. 879-893. doi:10.1016/j.enconman.2005.06.019
[4]	R. S. Vajjha, D. K. Das and P. K. Namburu, “Numerical Study of Fluid Dynamic and Heat Transfer Performance of Al2O3 and CuO Nanofluids in the Flat Tubes of a Radiator,” International Journal of Heat and Fluid Flow, Vol. 31, No. 4, 2010, pp. 613-621. doi:10.1016/j.ijheatfluidflow.2010.02.016
[5]	K. Y. Leong, R. Saidur, T. M. I. Mahlia and Y. H. Yau, “Modeling of Shell and Tube Heat Recovery Exchanger Operated with Nanofluid Based Coolants,” International Journal of Heat and Mass Transfer, Vol. 55, No. 4, 2012, pp. 808-816. doi:10.1016/j.ijheatmasstransfer.2011.10.027
[6]	A. Ijam and R. Saidur, “Nanofluid as a Coolant for Electronic Devices (Cooling of Electronic Devices),” Applied Thermal Engineering, Vol. 32, 2012, pp. 76-82. doi:10.1016/j.applthermaleng.2011.08.032
[7]	M. Saeedinia, M. A. Akhavan-Behabadi and M. Nasr, “Experimental Study on Heat Transfer and Pressure Drop of Nanofluid Flow in a Horizontal Coiled Wire Inserted Tube under Constant Heat Flux,” Experimental Thermal and Fluid Science, Vol. 36, 2012, pp. 158-168. doi:10.1016/j.expthermflusci.2011.09.009
[8]	M. Shafahi, V. Bianco, K. Vafai and O. Manca, “An Investigation of the Thermal Performance of Cylindrical Heat Pipes Using Nanofluids,” International Journal of Heat and Mass Transfer, Vol. 53, No. 1-3, 2010, pp. 376-383. doi:10.1016/j.ijheatmasstransfer.2009.09.019
[9]	D. G. Charyulu, G. Singh and J. K. Sharma, “Performance Evaluation of a Radiator in a Diesel Engine—A Case Study,” Applied Thermal Engineering, Vol. 19, No. 6, 1999, pp. 625-639. doi:10.1016/S1359-4311(98)00064-7
[10]	K. Y. Leong, R. Saidur, S. N. Kazi and A. H. Mamun, “Performance Investigation of an Automotive Car Radiator Operated with Nanofluid-Based Coolants (Nanofluid as a Coolant in a Radiator),” Applied Thermal Engineering, Vol. 30, No. 17-18, 2010, pp 2685-2692. doi:10.1016/j.applthermaleng.2010.07.019
[11]	B. C. Pak and Y. I. Cho, “Hydrodynamic and Heat Transfer Study of Dispersed Fluids with Submicron Metallic Oxide Particles,” Experimental Heat transfer, Vol. 11, No. 2, 1998, pp. 151-170. doi:10.1080/08916159808946559
[12]	Y. Xuan and W. Roetzel, “Conceptions of Heat Transfer Correlation of Nanofluids,” International Journal of Heat and Mass Transfer, Vol. 43, No. 19, 2000, pp. 3701-3707. doi:10.1016/S0017-9310(99)00369-5
[13]	M. Corcione, “Empirical Correlating Equations for Predicting the Effective Thermal Conductivity and Dynamic Viscosity of Nanofluids,” Energy Conversion and Management, Vol. 52, No. 1, 2011, pp. 789-793. doi:10.1016/j.enconman.2010.06.072
[14]	Q. Li and Y. Xuan, “Convective Heat Transfer and Flow Characteristics of Cu-Water Nanofluid,” Science in China Series E: Technological Sciences, Vol. 45, No. 4, 2002, pp. 408-416. doi:10.1360/02ye9047