Application of ZnO/TiO2 Nanocomposite for the Improvement of Heat Transfer Coefficient in Tube Heat Exchangers
محورهای موضوعی : Journal of Nanoanalysis
M Yousefifar
1
(Faculty of Advanced Technologies, Nano-Chemical Eng. Dep., Shiraz University, Shiraz, Iran)
Mohamad Mahdi Zerafat
2
(Faculty of Advanced Technologies, Nano-Chemical Eng. Dep., Shiraz University, Shiraz, Iran)
S. Sabbaghi
3
(Faculty of Advanced Technologies, Nano-Chemical Eng. Dep., Shiraz University, Shiraz, Iran)
کلید واژه: nanocomposite, Nanofluid, Shell and Tube Heat Exchanger, Heat Transfer Coefficient,
چکیده مقاله :
The potential of nanofluids for the improvement of heat transfer coefficient in various heat exchangeequipment has been considered and studied as a major application during recent decades. In this research,heat transfer coefficient of ZnO, TiO2 and ZnO/TiO2 nanofluids in a shell and tube heat exchanger has beenstudied experimentally. ZnO nanoparticle was synthesized through precipitation technique. Sol-gel andmechanical techniques were employed to synthesize the ZnO/TiO2 nano-composite. Particle size analysis(PSA), XRD, FTIR and FE-SEM techniques were used to characterize ZnO/TiO2 nano-composite. Based onthe results, the nanofluid heat transfer coefficient was enhanced by increasing the nanofluid concentrationand temperature. The heat transfer coefficient of TiO2 was higher than that of ZnO nanofluid and the heattransfer coefficients of nano-composites were higher than that of ZnO and TiO2 nanofluids and the basefluid. Also, the heat transfer coefficient and the overall heat transfer coefficient were increased 3.79 to9.09 times and 4.27 to 9.14, respectively by increasing the nano-composite content.
[1]G. Huminic and A. Huminic, Renew. Sustain. Energy Reviews, 16, 5625 (2012).
[2] S.S. Sonawane, R. S. Khedkar and K.L.Wasewar, Int. Commun. Heat Mass Trans., 49, 60 (2013).
[3] D. Madhesh, R. Parameshwaran and S. Kalaiselvam, Experimental Thermal and Fluid Sci., 52, 104 (2014).
[4] B. Farajollahi, S.Gh. Etemad and M. Hojjat, Int. J. of Heat Mass Transfer. 53, 12 (2010).
[5] K. Anoop,J. Cox and R. Sadr, Int. Commun. Heat and Mass Transfer., 49, 5 (2013).
[6] J. Albadr, S. Tayal and M. Alasadi, Case Studies in Thermal Eng., 1, 38 (2013).
[7] R. Lotfi, A. M. Rashidi and A. Amrollahi, Int. Commun. Heat and Mass Transfer., 39, 108 (2012).
[8] S. Zeinali-Heris, M. Nasr Esfahany andG. Etemad, J. Enhanced Heat Transfer., 13, 279 (2006).
[9]A.R. Sajadi, S.S. Sadati, M. Nourimotlagh, O. Pakbaz, D. Ashtiani and F. Kowsari, Thermal Sci., 18, 1315 (2014).
[10] P. Gurav, S.S. Naik, K. Ansari, S. Srinath, K. A. Kishore, Y. P. Setty and S. Sonawane, Colloids Surfaces A: Physicochem. Eng. Aspects., 441, 589 (2014).
[11] A. Ghozatloo, A. Rashidi and M. Shariaty-Niassar, Exp. Thermal Fluid Sci.,53, 136 (2014).
[12] L. Godson, K. Deepak, C. Enoch, B. Jefferson and B. Raja, Archives Civil Mech.Eng., 14, 489 (2014).
[13] S. Sabbaghi, H. Sadeghi, M. Mohammadi, M.M. Zerafat and R. Pooladi, Desal. Water Treatm., 57, 799 (2016).
[14] M. Mirzayi, S. Sabbaghi and M.M. Zerafat, Canadian J. Chem. Eng., ٩٦, Article in Press (2018).
[15] M.H. Yousefi, M.M. Zerafat, M. Shok-Doodeji and S. Sabbaghi, J. Water Environment. Nanotech., 2, 235 (2017).
[16] M. Shokri-Doodeji, M.M. Zerafat and O. Nejadian, J. Nanoanalysis, 4, 247(2017).
[17] A.E. Shalan, A. Mourtada, M. Rasly, M.M. Moharam, M. Lira-Cantu and M.M. Rashad, RSC Advances, 5, 103095 (2015).
[18] C. Karunakaran, G. Abiramasundari, P. Gomathisankar, G. Manikandan and V. Anandi, Materials Research Bulletin, 46, 1586 (2011).
[19] B.C. Yadav, Richa Srivastava and C.D. Dwivedi, Philosophical Magazine, 88, 1113 (2008).
[20] S.S. Kanmani and K. Ramachandran, Renewable Energy, 43, 149 (2012).
[21] M.R. Vaezi, J.Materials Process.Tech., 205, 332 (2008).
[22] T. Namdar, M.M. Zerafat, S. Sabbaghi, R. Saboori and M. Yousefifar, Transp. Phenom. Nano. Micro. Scales, 6, 104 (2018)
[23] M. Zhang, T. An, X. Liu, X. Hu, G. Sheng and J. Fu, Materials Lett., 64, 1883 (2010).
[24] L. Wang, X. Fu, Y. Han, E. Chang, Haitao Wu, H. Wang, K. Li and X. Qi, Hindawi Publishing Corporation J. Nanomaterial. 2013, 6 (2013).
[25] M.A. Habib, M.T. Shahadat, N.M. Bahadur, I.M.I. Ismail and A.J. Mahmood, Int. Nano Letters., 3, 5 (2013).
[26] N.M. Bahadur, T. Furusawa, M. Sato, F. Kurayama, N. Suzuki, Materials Research Bulletin, 45, 1383 (2010).
