|تعداد مشاهده مقاله||2,474,499|
|تعداد دریافت فایل اصل مقاله||1,744,211|
|Journal of Computational & Applied Research in Mechanical Engineering (JCARME)|
|مقاله 7، دوره 12، شماره 2 - شماره پیاپی 24، اردیبهشت 2023، صفحه 225-236 اصل مقاله (693.4 K)|
|نوع مقاله: Research Paper|
|شناسه دیجیتال (DOI): 10.22061/jcarme.2022.8582.2150|
|Rasoul Talebian1؛ Mansour Talebi* 2|
|1Islamic Azad University, Majlesi Branch, Isfahan, Iran|
|2Reactor and Nuclear Safety Research School, Nuclear Science and Technology Research Institute, Tehran, Iran|
|تاریخ دریافت: 18 آبان 1400، تاریخ بازنگری: 29 مرداد 1401، تاریخ پذیرش: 08 شهریور 1401|
|In the present study, the pressure drop of the nanofluid flow of carbon-water nanotubes (CNT/water) in a helical three-tube heat exchanger with constant fluid physical properties has been experimentally evaluated. For this purpose, first, the experimental device was designed and manufactured and then the carbon-water nanotube nanofluid with volume percentages of 0.01%, 0.1%, and 0.5% was prepared and stabilized. For the experiment, two triple-tube helical heat exchangers with different geometries are considered, in which the diameter of the middle pipe varies in two geometries. The pitch of the helical coil is 100mm and the helix radius is 9.235mm. The experiment was performed on Dean numbers between 1000 and 5000. The measured and calculated data were according to the available correlation in the literature with an error of less than 4%. It is found that at low volumetric percentages of CNT, the pressure drop is almost equal to that of the base fluid, and with increasing volumetric percentage of nanoparticles, the pressure drop also increases. By changing the geometry of the tube (decreasing the middle diameter of the tube), the pressure drop decreases.|
|Pressure-drop؛ Friction factor؛ Helical heat exchangers؛ Nanofluid؛ Experimental study|
 E. Zamani and M. Haghshenasfard, “analysis of heat transfer enhancement in shell and helical tube heat exchangers using CFD modeling”, Iran. Chem. Eng. J., Vol. 13, No. 76, pp. 62-68, (2015).
 M. Nazari, N. B. Baie, M. Ashouri, M. M. Shahmardan and A. Tamayol, “Unsteady heat transfer from a reservoir fluid by employing metal foam tube, helically tube and straight tube: a comparative experimental study”, Appl. Therm. Eng., Vol. 111, pp. 39-48, (2017).
 A. H. Pordanjani, S. Aghakhani, M. Afrand, B. Mahmoudi, O, Mahian and S. Wongwises, “An updated review on application of nanofluids in heat exchangers for saving energy”, Energy Convers. Manage., Vol. 198, 111886, pp. 1-39, (2019).
 M. H. Seyyedvalilu and S. F. Ranjbar, “The Effect of Geometrical Parameters on heat transfer and hydro dynamical characteristics of helical exchanger”, Int. J. Recent adv. in Mech. Eng., Vol. 4, No. 1, pp. 35-46, (2015).
 S. A. Nada, W. G. Shaer and A. S. Huzayyin, “Heat Transfer and pressure drop characteristics of multi tubes in tube helically coiled heat exchanger”, J. heat and mass transfer, Vol. 9, No. 2, pp. 173-202, (2014).
 E. Hosseinipour, S. Z. Heris and M. Shanbedi, “Experimental investigation of pressure drop and heat transfer performance of amino acid-functionalized MWCNT in the circular tube”, J. Therm. Anal. Calorim., Vol. 124, pp. 205–214, (2016).
 K. S. Hwang, S. P. Jang and S. U. S. Choi, “Flow and convective heat transfer characteristics of water-based Al2O3 nanofluids in fully developed laminar flow regime”, Int. J. Heat Mass Transfer, Vol. 52, No.1-2, pp. 193–199, (2009).
 S. M. Fotukian and M. Nasr Esfahany, “Experimental study of turbulent convective heat transfer and pressure drop of dilute CuO/water nanofluid inside a circular tube”, Int. Commun. Heat Mass Transfer, Vol. 37, No.2, pp. 214–219, (2010).
 W. Yu, H. Xie, Y. Li, L. Chen and Q. Wang, “Experimental investigation on the heat transfer properties of Al2O3 nanofluids using the mixture of ethylene glycol and water as base fluid”, Powder Technol., Vol. 230, pp. 14–19, (2012).
 T. H. Nassan, S. Zeinali Heris and S. H. Noie, “A comparison of experimental heat transfer characteristics for Al2O3/water and CuO/water nanofluids in square cross-section duct”, Int. Commun. Heat Mass Transfer, Vol. 37, No. 7, pp. 924–928, (2010).
 H. Demir, A. S. Dalkilic, N. A. Kurekci, W. Duangthongsuk and S. Wongwises, “Numerical investigation on the single phase forced convection heat transfer characteristics of TiO2 nanofluids in a double-tube counter flow heat exchanger”, Int. Commun. Heat Mass Transfer, Vol. 38, No. 2, pp. 218-228, (2011).
 A. Pishkar and B. Ghasemi, “Effect of nanoparticles on mixed convection heat transfer in a horizontal channel with heat source”, Modares Mech. Eng., Vol. 12, No. 2, pp. 95-108, (2012). (In Persian)
 N. Bozorgan, F. Panahizadeh and N. Bozorgan, “Investigating the using of Al2O3/EG nanofluids as coolants in a double-tube heat exchanger”, Modares Mech. Eng., Vol. 11, No. 3, pp. 75-84, (2011). (In Persian)
 M. Nasiri, S. Gh. Etemad and R. Bagheri, “Experimental heat transfer of nanofluid through an annular duct”, Int. Commun. Heat Mass Transfer, Vol. 38, No. 7, pp. 958–963, (2011).
 M. H. Kayhani, H., Soltanzadeh, M. M. Heyhat, M. Nazari and F. Kowsary, “Experimental study of convective heat transfer and pressure drop of TiO2/water nanofluid”, Int. Commun. Heat Mass Transfer, Vol. 39, No. 3, pp. 456–462, (2012).
 S. Zeinali Heris, S. S. Gh. Etemad and M. Nasr Esfahany, “Experimental investigation of oxide nanofluids laminar flow convective heat transfer”, Int. Commun. Heat Mass Transfer, Vol. 33, No. 4, pp. 529–535, (2006).
 S. Zeinali Heris, M. Nasr Esfahany and S. G. Etemad, “Experimental investigation of convective heat transfer of Al2O3/water nanofluid in circular tube”, Int. J. Heat Fluid Flow, Vol. 28, No.2, pp. 203-210, (2007).
 P. C. Mukesh Kumar and K. Palanisamy, “A Review of Forced Convection Heat Transfer and Pressure Drop in Shell and Helical Coiled Tube Heat Exchanger of Nanofluids”, Int. J. Res. Sci. Innovation, Vol. 4, No. 9, pp. 26-34, (2017).
 Y. Ding, H. Alias, D. Wen and R. A. Williams, “Heat transfer of aqueous suspensions of carbon nanotubes (CNT nanofluids)”, Int. J. Heat Mass Transfer, Vol. 49, No. 1-2, pp. 240-250, (2006).
 J. Wang, J. Zhu, X. Zhang and Y. Chen, “Heat transfer and pressure drop of nanofluids containing carbon nanotubes in laminar flows”, Exp. Therm Fluid Sci., Vol. 44, pp. 716-721, (2013).
 R. Ranjbarzadeh, A. H. Meghdadi Isfahani, M. Afrand, A. Karimipour and M. Hojati, “An experimental study on heat transfer and pressure drop of water/graphene oxide nanofluid in a copper tube under air cross-flow: Applicable as a heat exchanger”, Appl. Therm. Eng., Vol. 125, pp. 69–79, (2017).
 Babita, S. K. Sharma, S. M. Gupta and A. Kumar, “hydrodynamic studies of CNT nanofluids in helical coil heat exchanger”, Mater. Res. Express, Vol. 4, No. 12, pp. 1-20, (2017).
 Singh, Kriti, S. K. Sharma, and Shipra Mital Gupta. "An experimental investigation of hydrodynamic and heat transfer characteristics of surfactant-water solution and CNT nanofluid in a helical coil-based heat exchanger." Materials Today: Proceedings Vol. 43, pp. 3896-3903, (2021).
 M. Omri, H. Smaoui, L. Frechette and L. Kolsi, "A new microchannel heat exchanger configuration using CNT-nanofluid and allowing uniform temperature on the active wall." Case Studies in Thermal Engineering, Vol. 32: 101866, pp. 1-12, (2022).
 S. Anitha, M. Pichumani, "Numerical analysis on heat transfer performance of industrial double-tube heat exchanger using CNT: Newtonian/non-Newtonian hybrid nanofluids", Journal of Thermal Analysis and Calorimetry, (2022).
 W. Yu and S. Choi, “The role of interfacial layers in the enhanced thermal conductivity of nanofluids: a renovated Maxwell model”, J. Nanopart. Res., Vol. 5, pp. 167-171, (2003).
 H. Brinkman, "The viscosity of concentrated suspensions and solutions", J. Chem. Phys., Vol. 20, pp. 571, (1952).
 W. I. Aly, “Numerical study on turbulent heat transfer and pressure drop of nanofluid in coiled tube-in-tube heat exchangers”, Energy Convers. Manage., Vol. 79, pp. 304-316. (2014).
 P. Moulin, P., Manno, J. C. Rouch, C. Serra, M. J. Clifton and P. Aptel, "Flux improvement by Dean vortices: Ultrafiltration of colloidal suspensions and macromolecular suspensions", J. Membr. Sci., Vol. 156, No. 1, pp. 109-130, (1999).
 S. Kakaç, and H. Liu, Heat exchangers: selection, rating and thermal design, CRC Press, Second ed., (2002).
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