اثرات استفاده از توربولاتور خورشیدی‌شکل بر عملکرد حرارتی‌- هیدرولیکی مبدل حرارتی پُرشده از نانوسیال دوفاز

نویسندگان

1 Department of Mechanical Engineering, Kashan Branch, Islamic Azad University, Kashan, I.R. Iran

2 Department of physics, Kashan Branch, Islamic Azad University, Kashan, I.R. Iran

چکیده

هدف اصلی مقالۀ حاضر، دستیابی به مبدل حرارتی کوچک‌تر و ارزان‌تر با عملکرد مشابه است. هدف دوم این تحقیق، بررسی تأثیرات استفاده از نانوسیال‌های پایۀ روغن در مبدل حرارتی پالایشگاه است. و هدف سوم این مقاله مقایسۀ نتایج به‌دست‌آمده از رویکردهای سینگ و چند فاز است. به‌دلیل تأمین این تقاضا، از نرم‌افزارهای ANSYS-Fluent و Aspen-HYSYS استفاده شده است. همچنین، نانوسیال MgO-SAE10 در این مقاله با استفاده از رویکردهای دوفاز بررسی شده است. THPEC، معیارهای ارزیابی عملکرد حرارتی - هیدرولیکی و شار حرارتی خاص، q"، نقش اصلی را در این مقاله دارند. در مرحله دوم نویسندگان سعی در دستیابی به یک مدل کارآمد دارند که نه‌تنها دارای THPEC> 1 باشد، بلکه دارای حداکثر مقدار q" با توجه به نتایج به‌دست‌آمده باشد. استفاده از نانوسیال و توربولاتور می‌تواند عملکرد حرارتی-هیدرولیکی مبدل حرارتی را به‌طور قابل توجهی افزایش دهد. همچنین نتیجه گرفته می‌شود که با استفاده از نانوسیال و توربولاتور، هزینه‌های تولید مبدل‌های حرارتی پالایشگاه به‌شدت کاهش می‌یابد. مبدل حرارتی پرشده از نانوسیال MgO-SAE10 و مجهز به توربولاتور SOL شکل با δ = 0.5 میلی‌متر، l = 5.8  میلی متر و D = 5.8 میلی‌متر به‌عنوان بهترین پیکربندی در این کار پیشنهاد شده است که می‌تواند خصوصیات حرارتی مبدل حرارتی را حدود 62 بهبود بخشد.

کلیدواژه‌ها


[1] Oyakawa, K. and Shinzato, T., I., "The effects of the channel width on heat-transfer augmentation in a sinusoidal wave channel", JSME International Journal, Vol. 32, pp. 403-410, 1989.
[2] Panahi, D. and Zamzamian, K., "Heat transfer enhancement of shell-and-coiled tube heat exchanger utilizing helical wire turbulator", Applied Thermal Engineering, Vol. 115, pp. 607-615, 2017.
[3] Feyza Akyürek, E., Geliş, K., Şahin, B. and Manay, E., "Experimental analysis for heat transfer of nanofluid with wire coil turbulators in a concentric tube heat exchanger", Results in Physics, Vol. 9, pp. 376-389, 2018.
[4] Ničeno, B., Nobile, E. “Numerical analysis of fluid flow and heat transfer in periodic wavy channels”, International Journal of Heat and Fluid Flow, Vol.4, No. 2, pp. 15-167, 2001.
[5] Sheikholeslami, M. and Ganji, D.D., "Heat transfer improvement in a double pipe heat exchanger by means of perforated turbulators", Energy Conversion and Management, Vol. 127, pp. 112-123, 2016.
[6] Comini, G., Nonino, C. and Savino, S., "Effect of aspect ratio on convection enhancement in wavy channels", Numerical Heat Transfer, Part A: Applications, Vol. 44, No. 1, pp. 21-37, 2003.
[7] Farshad, S. A. and Sheikholeslami, M., "Numerical examination for entropy generation of turbulent nanomaterial flow using complex turbulator in a solar collector", Physica A: Statistical Mechanics and its Applications, 2019.
[8] Liou, T.M.S., Chang, W. and Chan, S.P., "Experimental study on thermal flow characteristics in square serpentine heat exchangers mounted with louver-type turbulators", International Journal of Heat and Mass Transfer, Vol. 116, pp. 897-908, 2018.
[9] Rivier, M., Sébastian, P., Guilhem, T. G. and Collignan, R. A., "Heat transfer enhancement of a circular tube heat exchanger fitted with an elliptic shaped turbulator designed in the context of developing countries", Applied Thermal Engineering, Vol. 81, pp. 92-101, 2015.
[10] Jafaryar, M., Sheikholeslami, M. and Li, Z., "CuO-water nanofluid flow and heat transfer in a heat exchanger tube with twisted tape turbulator", Powder Technology, Vol. 336, pp. 131-143, 2018.
[11] Duan, Z. and Muzychka, Y.S., "Effects of axial corrugated roughness on low Reynolds number slip flow and continuum flow in microtubes", Journal of Heat Transfer, Vol. 132, No. 4, pp. 1-8, 2010.
[12] Zhang, L. and Che, D., "Influence of corrugation profile on the thermal hydraulic performance of cross-corrugated plates", Numerical Heat Transfer, Part A: Applications, Vol. 59, No. 4, pp. 267-296, 2011.
[13] Zhang, L. and Che, D., "Turbulence models for fluid flow and heat transfer between cross-corrugated plates, Numerical Heat Transfer", Part A: Applications, Vol. 60, No. 5, pp. 410-440, 2011.
[14] Santra, A.K., Sen, S. and Charaborty, N., "Study of heat transfer due to laminar flow of copper–water nanofluid through two isothermally heated parallel plates", International Journal of Thermal Sciences, Vol. 48, No. 2, pp.391-400, 2009.
[15] Abu-Nada, E., "Application of nanofluids for heat transfer enhancement of separated flows encountered in a backward facing step", International Journal of Heat and Fluid Flow, Vol. 29, No. 1, pp. 242–249, 2008.
[16] Xiong, Q., Jafaryar, M., Divsalar, A., Sheikholeslami, M., Shafee, A. and Dat D. Vo, "Muhammad Humran Khan, I. Tlili, Zhixiong Li, Macroscopic simulation of nanofluid turbulent flow due to compound turbulator in a pipe", Chemical Physics, Vol. 527, 2019.
[17] Xiong, Q., yani, A., Azeez, M., Barzinjy, A., Nasir Dara, R., Shafee, A. and Nguyen-Thoi, T., "Modeling of heat transfer augmentation due to complex-shaped turbulator using nanofluid", Physica A: Statistical Mechanics and its Applications, Vol. 540, 2020.
[18] Manca, O., Nardini, S. and Ricci, D., "A numerical study of nanofluid forced convection in ribbed channels", Applied Thermal Engineering, Vol. 37, pp. 280-292, 2012.
[19] Mohammed, H.A., Al-Shamani, A.N. and Sheriff, J.M., "Thermal and hydraulic characteristics of turbulent nanofluids flow in a rib-groove channel", International Communications in Heat and Mass Transfer, Vol. 39, No. 10, pp. 1584-1594, 2012.
[20] Heidary, H. and Kermani, M.J., "Effect of nanopaticles on forced convection in sinusoidal-wall channel", International Communications in Heat and Mass Transfer, Vol. 37, No. 10, pp. 1520-1527, 2010.
[21] Sheikholeslami, M., Gorji-Bandpy, M. and Ganji, D.D., "Effect of discontinuous helical turbulators on heat transfer characteristics of double pipe water to air heat exchanger", Energy Conversion and Management, Vol. 118, pp. 75-87, 2016.
[22] Ahmed, M.A., Shuaib, N.H. and Yusoff, M.Z., "Numerical investigations on the heat transfer enhancement in a wavy channel using nanofluid", International Journal of Heat and Fluid Flow, Vol.55, No. 21-22,pp. 5891-1598, 2012.
[23] Ahmed, M.A., Shuaib, N.H. and Yusoff, M.Z., "Effects of geometrical parameters on the flow and heat transfer characteristics in trapezoidal-corrugated channelusing nanofluid", International Communications in Heat and Mass Transfer, Vol.42, pp. 69-74, 2013.
[24] Abbasian Arani, A.A., Sodripour, S. and Kermani, S., "Nanoparticle shape effects on thermal-hydraulic performance of boehmite alumina nanofluids in a sinusoidal–wavy mini-channel with phase shift and variable wavelength", International Journal of Mechanical Sciences, Vol. 128–129, pp. 550-563, 2017.
[25] Sodripour, S., Ghorashi, S.A. and Estajloo, M., "Numerical Investigation of a Cavity Equipped with Corrugated Heat Source: A Full Convection-Conduction-Radiation Coupling", American Journal of Aerospace Engineering, Vol. 4, No. 3, pp. 27-37, 2017.
[26] Sheikholeslami, M. and Ganji, D.D., "Heat transfer enhancement in an air to water heat exchanger with discontinuous helical turbulators; experimental and numerical studies", Energy, Vol. 116, pp. 341-352, 2016.
[27] Sandeep P. Nalavade, Chandrakant L. Prabhune, "Narayan K. Sane, Effect of novel flow divider type turbulators on fluid flow and heat transfer", Thermal Science and Engineering Progress, Vol. 9, pp. 322-331, 2019.
[28] Mashoofi, N., Pesteei, S. M., Moosavi, A. and Sadighi Dizaji, H., "Fabrication method and thermal-frictional behavior of a tube-in-tube helically coiled heat exchanger which contains turbulator", Applied Thermal Engineering, Vol. 111, pp. 1008-1015, 2017.
[29] Yadav, S. and Sahu, S. K., "Heat transfer augmentation in double pipe water to air counter flow heat exchanger with helical surface disc turbulators", Chemical Engineering and Processing - Process Intensification, Vol. 135, pp. 120-132, 2019.
[30] Nanan, K., Thianpong, C., Pimsarn, M., Chuwattanakul, V. and Eiamsa-ard, S., "Flow and thermal mechanisms in a heat exchanger tube inserted with twisted cross-baffle turbulators", Applied Thermal Engineering, Vol. 114, pp. 130-147, 2017.
[31] Zeinali Heris, S., Etemad, S.Gh. and Esfahany, N.M., "Numerical investigation of nanofluid laminar convective heat transfer through a circular tube", Numerical Heat Transfer, Part A: Applications, Vol. 52, No. 11, pp. 1043–1058, 2007.
[32] Mohammed, H.A., Abuobeidab, I.A.M.A., Vuthaluru, H.B. and Liua, S., "Two-phase forced convection of nanofluids flow in circular tubes using convergent and divergent conical rings inserts", International Communications in Heat and Mass Transfer, Vol. 101, pp. 10–20, 2019.
[33] Karimi, A., Al-Rashed, A.A.A., Afrand, M., Mahian, O., Wongwises, S. and Shahsavar, A., "The effects of tape insert material on the flow and heat transfer in a nanofluid-based double tube heat exchanger: Two-phase mixture model", International Journal of Mechanical Sciences, Vol. 156, pp. 397-409, 2019.
[34] Sheikholeslami, M. and Rokni, H.B., "Influence of melting surface on MHD nanofluid flow by means of two phase model", Chinese Journal of Physics, 2018.
[35] Sheikholeslami, M. and Rokni, "Nanofluid two phase model analysis in existence of induced magnetic field", International Journal of Heat and Mass Transfer, Vol. 107, pp. 288–299, 2017.
[36] Alsarraf, J., Moradikazerouni, A., Shahsavar, A., Afrand, M., Salehipour, H. and Tran, M.D., "Hydrothermal analysis of turbulent boehmite alumina nanofluid flow with different nanoparticle shapes in a minichannel heat exchanger using two-phase mixture model", Physica A, 2019.
[37] Borah, A., Boruah, M.P. and Pati, S., "Conjugate heat transfer in a duct using nanofluid by two-phase Eulerian–Lagrangian method: Effect of non-uniform heating", Powder Technology, 2019.
[38] Barnoon, P., Toghraie, D., Eslami, F. and Mehmandoust, B., "Entropy generation analysis of different nanofluid flows in the space between two concentric horizontal pipes in the presence of magnetic field: Single-phase and two-phase approaches", Computers and Mathematics with Applications, 2019.
[39] Asadi, A. and Pourfattah, F., "Heat transfer performance of two oil-based nanofluids containing ZnO and MgO nanoparticles; a comparative experimental investigation", Powder Technology, Vol. 343, pp. 296-308, 2019.
[40] Patankar, S.V., "Numerical Heat Transfer and Fluid Flow", Taylor & Francis Group, 1980.
[41] Sodripour, S., "3D Numerical Analysis of Atmospheric-Aerosol/Carbon-Black Nanofluid Flow within a Solar Air Heater Located in Shiraz", Iran, International Journal of Numerical Methods for Heat and Fluid Flow, Vol. 29, No. 4, pp. 1378–1402, 2019.
[42] Sodripour, S. and Chamkha, A.J., "The Effect of Nanoparticle Morphology on Heat Transfer and Entropy Generation of Supported Nanofluids in a Heat Sink Solar Collector", Thermal Science and Engineering Progress, Vol. 9, pp. 266–280, 2019.
[43] Sodripour, S., "Investigation of Flow Characteristics and Heat Transfer Enhancement of a Corrugated Duct using Nanofluid", Journal of Applied Mechanics and Technical Physics, Vol. 59, No. 6, pp. 1049–1057, 2018.
[44] Sodripour, S., "First and Second Laws Analysis and Optimization of a Solar Absorber; Using Insulator Mixers and MWCNTs Nanoparticles", Global Journal of Researches in Engineering A: Mechanical and Mechanics, Vol. 17, No. 5, pp. 37–48, 2017.
[45] Sodripour, S., Adibi, M. and Sheikhzadeh, G.A., "Two Different Viewpoints about using Aerosol-Carbon Nanofluid in Corrugated Solar Collectors: Thermal-Hydraulic Performance and Heating Performance", Global Journal of Researches in Engineering A: Mechanical and Mechanics, Vol. 17, No. 5, pp. 19–36, 2017.
[46] Corcione, M., "Empirical correlating equations for predicting the effective thermal conductivity and dynamic viscosity of nanofluids", Energy Conversion and Management, Vol. 52, pp. 789-793, 2011.
[47] Keblinski, P., Phillpot, S.R., Choi, S.U.S. and Eastman, J.A., "Mechanisms of heat flow in suspensions of nanosized particles (nanofluids)", International Journal of Heat and Mass Transfer, Vol. 45, pp. 855–63, 2002.
[48] Launder, B.E. and Spalding, D.B., "Mathematical Models of Turbulence", Academic Press, New York, 1972.
[49] Anderson, J.D., "Computational Fluid Dynamics", McGraw-Hill, New York, 1995.
[50] Kim, D., Kwon, Y., Cho, Y., Li, C., Cheong, S., Hwang, Y., Lee, J., Hong, D. and Moon, S., "Convective heat transfer characteristics of nanofluids under laminar and turbulent flow conditions", Current Applied Physics, Vol. 9, No. 2, pp. 119-123, 2009.
[51] Anvari, A.R., Javaherdeh, K., Emami-Meibodi, M. and Rashidi, A.M., "Numerical and experimental investigation of heat transfer behavior in a round tube with the special conical ring inserts", Energy Conversion and Management, Vol. 88, pp. 214–217, 2014.
[52] Promvonge, P. and Eiamsaard, S., "Heat transfer behaviors in a tube with combined conical-ring and twisted-tape insert", International Communications in Heat and Mass Transfer, Vol. 34, pp. 849–859, 2007.