Computational analysis to determine the heat transfer coefficients for SiO2/60EGW and SiO2/40EGW based nano-fluids

Computational analysis to determine the heat transfer coefficients for SiO2/60EGW and SiO2/40EGW based nano-fluids

Seshu Kumar Vandrangi  Sampath Emani  KV Sharma  Gurunadh Velidi 

Mechanical Engineering Department, Universiti Teknologi PETRONAS, Tronoh 32610, Malaysia

Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad 500 085, Telangana, India

University of Petroleum and Energy Studies, Bidholi, Via Prem Nagar, Dehradun, Uttarakhand 248007, India

Corresponding Author Email: 
Seshu1353@gmail.com
Page: 
103-114
|
DOI: 
https://doi.org/10.3166/ACSM.42.103-114
Received: 
|
Accepted: 
|
Published: 
31 March 2018
| Citation

OPEN ACCESS

Abstract: 

 The purpose of the current research is to investigate the computational heat transfer coefficients of SiO2 nanoparticles dispersed in ethylene glycol (EG) and water (W) mixtures in 60:40 (60EGW) and 40:60 (40EGW) by volume and evaluate the influence of base fluid. The thermophysical properties of SiO2, based nanoparticles dispersed in 60EGW and 40EGW base fluid were taken from available literature and regression analysis was performed for formulating equations. The theoretical data was used as input in computational analysis for the investigation of heat transfer coefficients. The results indicate that the heat transfer coefficients for SiO2/60EGW and SiO2/40EGW based nanofluids have shown an enhancement of 25% and 55% respectively when compared with base fluids. Hence, it can be concluded that SiO2/40EGW  nanofluids show a better heat transfer rates than SiO2/60EGW nanofluids

Keywords: 

heat transfer coefficient, nanofluids, CFD, Heat transfer enhancement

1. Introduction
2. Methodology
3. Grid ooptimization
4. Results and discussions
5. Conclusions
  References

Baru P. A., Qin, Y. Z., Darus A. N., Sidik N. A. C. (2014). Numerical analysis on natural convection heat transfer of a heat sink with cylindrical pin fin. J. Adv. Res. Fluid Mech. Therm. Sci., No. 2, pp. 13-22. https://doi.org/10.4028/www.scientific.net/amm.695.398

Jehad D., Hashim G. (2011). Numerical prediction of forced convective heat transfer and friction factor of turbulent nanofluid flow through straight channels. J. Adv. Res. Fluid Mech. Therm. Sci., Vol. 8, No. 1, pp. 1-10.

Koronaki E., Liakos H., Founti M., Markatos N. (2015). Numerical study of turbulent flow in pipe with sudden expansion. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, Vol. 6, No. 1, pp. 34-48. https://doi.org/10.1016/S0307-904X(00)00055-X

Kulkarni D. P., Namburu P. K., Das D. K. (2016). Comparison of heat transfer and fluid dynamic performance of nanofluids. Une, Vol. 13, pp. 15.

Kulkarni D. P., Namburu P. K., Bargar H. E., Das D. K. (2008). Convective heat transfer and fluid dynamic characteristics of SiO2 ethylene glycol/water nanofluid. Heat Transfer Engineering, Vol. 29, No. 12, pp. 1027-1035. https://doi.org/10.1080/01457630802243055

Moghadassi A., Ghomi E., Parvizian F. (2015). A numerical study of water based Al2O3 and Al2O3–Cu hybrid nanofluid effect on forced convective heat transfer. International Journal of Thermal Sciences, Vol. 92, pp. 50-57. https://doi.org/10.1016/j.ijthermalsci.2015.01.025

Namburu P. K., Das D. K., Tanguturi K., Vajjha R. (2009). Numerical study of turbulent flow and heat transfer characteristics of nanofluids considering variable properties. International Journal of Thermal Sciences, Vol. 48, No. 2, pp. 290–302. https://doi.org/10.1016/j.ijthermalsci.2008.01.001

Pak B. C., Cho Y. I. (1998). Hydrodynamic and heat transfer study of dispersed fluids with submicron metallic oxide particles. Experimental Heat Transfer an International Journal, Vol. 11, No. 2, pp. 151–170. https://doi.org/10.1080/08916159808946559

Usri N., Azmi W. H., Mamat R., Najafi G. (2015). Heat transfer augmentation of Al2O3 nanofluid in 60: 40 Water to Ethylene Glycol Mixture. Energy Procedia, Vol. 79, pp. 403-408. https://doi.org/10.1016/j.egypro.2015.11.510

Vajjha R. S., Das D. K., Kulkarni D. P. (2010). Development of new correlations for convective heat transfer and friction factor in turbulent regime for nanofluids. International Journal of Heat and Mass Transfer, Vol. 53, No. 21–22, pp. 4607–4618. https://doi.org/10.1016/j.ijheatmasstransfer.2010.06.032

Xuan Y., Li Q. (2003). Investigation on convective heat transfer and flow features of nanofluids. Journal of Heat transfer, Vol. 125, No. 1, pp. 151–155. https://doi.org/10.1115/1.1532008

Xuan Y., Roetzel W. (2000). Conceptions for heat transfer correlation of nanofluids. International Journal of Heat and Mass Transfer, Vol. 43, No. 19, pp. 3701–3707. https://doi.org/10.1016/s0017-9310(99)00369-5