Heat and Fluid Flow Characteristics of Nanofluid in A Channel Baffled Opposite to The Heated Wall

Authors

  • Nguyen Minh Phu Faculty of Heat and Refrigeration Engineering, Industrial University of Ho Chi Minh City (IUH), Vietnam
  • Pham Ba Thao Faculty of Heat and Refrigeration Engineering, Industrial University of Ho Chi Minh City (IUH), Vietnam
  • Duong Cong Truyen Faculty of Heat and Refrigeration Engineering, Industrial University of Ho Chi Minh City (IUH), Vietnam

DOI:

https://doi.org/10.37934/cfdl.13.1.3344

Keywords:

Baffled channel, Cu-water nanofluid, thermohydraulic performance, CFD

Abstract

In this paper, a nanofluid-based solar collector duct equipped with baffles is examined numerically. Baffles are located on the back plate to guide nanofluid flow toward absorber plate for heat transfer enhancement purposes. Cu-water nanofluid with fixed flow rate and concentration in the baffled duct are investigated for thermohydraulic mechanisms. Baffles with different inclination angles, heights and pitches are considered in this study. Numerical simulations are performed using Ansys fluent software with verified results compared to those of an experiment in the literature. The results show that the baffle angle 60° causes the lowest thermohydraulic performance. Because in the angle range of 30 to 60° the heat transfer is less variable while the pressure loss increases sharply. At the baffle pitch of 40 mm, there is no reattachment point at the non-heated surface. At the angle of 90°, three eddies are formed around a baffle. The slope linear regression analysis yields that baffle height has the strongest effects on thermohydraulic performance followed by baffle pitch and baffle angle. Nanofluid pressure loss respectively increases with baffle height and baffle angle at the rate of 0.463675 and 0.0049607 while absorber plate temperature respectively decreases with the baffle height and baffle angle at the rate of -0.176746 and -0.001377. Flow patterns and isotherms of all the cases examined are presented and analyzed in this study.

References

Nguyen, Minh Phu, Tu Thien Ngo, and Thanh Danh Le. "Experimental and numerical investigation of transport phenomena and kinetics for convective shrimp drying." Case Studies in Thermal Engineering 14 (2019): 100465. https://doi.org/10.1016/j.csite.2019.100465

Tuyen, Vo, Nguyen Van Hap, and Nguyen Minh Phu. "Thermal-hydraulic characteristics and optimization of a liquid-to-suction triple-tube heat exchanger." Case Studies in Thermal Engineering (2020): 100635. https://doi.org/10.1016/j.csite.2020.100635

Minh, Phu Nguyen. "A Compact EES Program to Predict Axial Temperature Distribution in Triple-fluid Heat Exchanger." Science & Technology Development Journal-Engineering and Technology 3, no. 3 (2020): 452-460. https://doi.org/10.32508/stdjet.v3i3.736

Phu, Nguyen Minh, and Nguyen Thi Minh Trinh. "Modelling and experimental validation for off-design performance of the helical heat exchanger with LMTD correction taken into account." Journal of Mechanical Science and Technology 30, no. 7 (2016): 3357-3364. https://doi.org/10.1007/s12206-016-0645-0

Xiong, Qingang, Mehdi Vahabzadeh Bozorg, Mohammad Hossein Doranehgard, Kun Hong, and Giulio Lorenzini. "A CFD investigation of the effect of non-Newtonian behavior of Cu–water nanofluids on their heat transfer and flow friction characteristics." Journal of Thermal Analysis and Calorimetry 139, no. 4 (2020): 2601-2621. https://doi.org/10.1007/s10973-019-08757-w

Meibodi, Saleh Salavati, Ali Kianifar, Omid Mahian, and Somchai Wongwises. "Second law analysis of a nanofluid-based solar collector using experimental data." Journal of Thermal Analysis and Calorimetry 126, no. 2 (2016): 617-625. https://doi.org/10.1007/s10973-016-5522-7

Rashidi, Saman, Parniyan Javadi, and Javad Abolfazli Esfahani. "Second law of thermodynamics analysis for nanofluid turbulent flow inside a solar heater with the ribbed absorber plate." Journal of Thermal Analysis and Calorimetry 135, no. 1 (2019): 551-563. https://doi.org/10.1007/s10973-018-7164-4

Hawwash, A. A., Ali K. Abdel Rahman, S. A. Nada, and S. Ookawara. "Numerical investigation and experimental verification of performance enhancement of flat plate solar collector using nanofluids." Applied Thermal Engineering 130 (2018): 363-374. https://doi.org/10.1016/j.applthermaleng.2017.11.027

Phu, Nguyen Minh. "Overall optimization and exergy analysis of an air conditioning system using a series-series counterflow arrangement of water chillers." International Journal of Air-Conditioning and Refrigeration 27, no. 04 (2019): 1950034. https://doi.org/10.1142/S2010132519500342

Khan, Jamil A., Jason Hinton, and Sarah C. Baxter. "Enhancement of heat transfer with inclined baffles and ribs combined." Journal of Enhanced Heat Transfer 9, no. 3&4 (2002). http://dx.doi.org/10.1080/10655130215738

Menasria, Fouad, Merouane Zedairia, and Abdelhafid Moummi. "Numerical study of thermohydraulic performance of solar air heater duct equipped with novel continuous rectangular baffles with high aspect ratio." Energy 133 (2017): 593-608. http://dx.doi.org/10.1016/j.energy.2017.05.002

Jedsadaratanachai, Withada, and Amnart Boonloi. "Flow and Heat Transfer Characteristics of Air in Square Channel Heat Exchanger With C-Shaped Baffle: A Numerical Study." Frontiers in Heat and Mass Transfer (FHMT) 13 (2019). https://doi.org/10.5098/hmt.13.23

Dutta, Prashanta, and Akram Hossain. "Internal cooling augmentation in rectangular channel using two inclined baffles." International Journal of Heat and Fluid Flow 26, no. 2 (2005): 223-232. https://doi.org/10.1016/j.ijheatfluidflow.2004.08.001

Dutta, Prashanta, and Sandip Dutta. "Effect of baffle size, perforation, and orientation on internal heat transfer enhancement." International Journal of Heat and Mass Transfer 41, no. 19 (1998): 3005-3013. https://doi.org/10.1016/S0017-9310(98)00016-7

Ary, B. K. P., M. S. Lee, S. W. Ahn, and D. H. Lee. "The effect of the inclined perforated baffle on heat transfer and flow patterns in the channel." International Communications in Heat and Mass Transfer 39, no. 10 (2012): 1578-1583. http://dx.doi.org/10.1016/j.icheatmasstransfer.2012.10.010

Chamoli, Sunil, and Narendra Singh Thakur. "Numerical based heat transfer and friction factor correlations of rectangular ducts roughened with transverse perforated baffles." Walailak Journal of Science and Technology (WJST) 11, no. 2 (2014): 107-127. https://doi.org/10.2004/wjst.v11i2.594

Karami, Maryam, Shahram Delfani, and Mostafa Esmaeili. "Effect of V-shaped rib roughness on the performance of nanofluid-based direct absorption solar collectors." Journal of Thermal Analysis and Calorimetry 138, no. 1 (2019): 559-572. https://doi.org/10.1007/s10973-019-08129-4

Andreozzi, Assunta, Oronzio Manca, Sergio Nardini, and Daniele Ricci. "Forced convection enhancement in channels with transversal ribs and nanofluids." Applied Thermal Engineering 98 (2016): 1044-1053. https://doi.org/10.1016/j.applthermaleng.2015.12.140.

Al-Shamani, Ali Najah, K. Sopian, H. A. Mohammed, Sohif Mat, Mohd Hafidz Ruslan, and Azher M. Abed. "Enhancement heat transfer characteristics in the channel with Trapezoidal rib–groove using nanofluids." Case Studies in Thermal Engineering 5 (2015): 48-58. https://doi.org/10.1016/j.csite.2014.12.003.

Menni, Younes, and Houari Ameur. "Improvement of the performance of solar channels by using vortex generators and hydrogen fluid." Journal of Thermal Analysis and Calorimetry (2020): 1-22. https://doi.org/10.1007/s10973-020-10239-3

Ameur, Houari, and Younes Menni. "Laminar cooling of shear thinning fluids in horizontal and baffled tubes: Effect of perforation in baffles." Thermal Science and Engineering Progress 14 (2019): 100430. https://doi.org/10.1016/j.tsep.2019.100430

Ameur, Houari. "Effect of corrugated baffles on the flow and thermal fields in a channel heat exchanger." Journal of Applied and Computational Mechanics 6, no. 2 (2020): 209-218. https://doi.org/10.22055/jacm.2019.28936.1521

Ameur, Houari. "Effect of the baffle inclination on the flow and thermal fields in channel heat exchangers." Results in Engineering 3 (2019): 100021. https://doi.org/10.1016/j.rineng.2019.100021

Ameur, Houari, and Djamel Sahel. "Effect of some parameters on the thermohydraulic characteristics of a channel heat exchanger with corrugated walls." Journal of Mechanical and Energy Engineering 3 (2019). https://doi.org/10.30464/jmee.2019.3.1.53

Japar, Wan Mohd Arif Aziz, Nor Azwadi Che Sidik, and Shabudin Mat. "A comprehensive study on heat transfer enhancement in microchannel heat sink with secondary channel." International Communications in Heat and Mass Transfer 99 (2018): 62-81. https://doi.org/10.1016/j.icheatmasstransfer.2018.10.005

Japar, Wan Mohd Arif Aziz, Nor Azwadi Che Sidik, Rahman Saidur, Yutaka Asako, and Siti Nurul Akmal Yusof. "A review of passive methods in microchannel heat sink application through advanced geometric structure and nanofluids: Current advancements and challenges." Nanotechnology Reviews 9, no. 1 (2020): 1192-1216. https://doi.org/10.1515/ntrev-2020-0094

Luan, Nguyen Thanh, and Nguyen Minh Phu. "Thermohydraulic correlations and exergy analysis of a solar air heater duct with inclined baffles." Case Studies in Thermal Engineering (2020): 100672. https://doi.org/10.1016/j.csite.2020.100672

Phu, Nguyen Minh, and Nguyen Thanh Luan. "A Review of Energy and Exergy Analyses of a Roughened Solar Air Heater." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 77, no. 2 (2020): 160-175. https://doi.org/10.37934/arfmts.77.2.160175

Nakhchi, M. E., and J. A. Esfahani. "Numerical investigation of turbulent Cu-water nanofluid in heat exchanger tube equipped with perforated conical rings." Advanced Powder Technology 30, no. 7 (2019): 1338-1347. https://doi.org/10.1016/j.apt.2019.04.009

Mai, Thanh Dam, and Jaiyoung Ryu. "Effects of Leading-Edge Modification in Damaged Rotor Blades on Aerodynamic Characteristics of High-Pressure Gas Turbine." Mathematics 8, no. 12 (2020): 2191. https://doi.org/10.3390/math8122191

Phu, Nguyen Minh, and Nguyen Van Hap. "Numerical Investigation of Natural Convection and Entropy Generation of Water near Density Inversion in a Cavity Having Circular and Elliptical Body." In Fluid-Structure Interaction. IntechOpen, 2020. https://doi.org/10.5772/intechopen.95301

ANSYS. Ansys Fluent Theory Guide 16.0. ANSYS, Inc. (2015).

Karimi, Yavar, Ali Reza Solaimany Nazar, and Mohsen Motevasel. "CFD simulation of nanofluid heat transfer considering the aggregation of nanoparticles in population balance model." Journal of Thermal Analysis and Calorimetry (2020): 1-14. https://doi.org/10.1007/s10973-019-09218-0

Phu, Nguyen Minh, and Nguyen Van Hap. "Performance Evaluation of a Solar Air Heater Roughened with Conic Curve Profile Ribs Based on Efficiencies and Entropy Generation." Arabian Journal for Science and Engineering 45 (2020): 9023-9035. https://doi.org/10.1007/s13369-020-04676-3

Van Nguyen, Hap, Trinh Thi Minh Nguyen, Phu Minh Nguyen, and Tu Thien Ngo. "Computational fluid dynamics analysis for basement ventilation in case of a fire." Journal of Advanced Marine Engineering and Technology 44, no. 4 (2020): 333-337. https://doi.org/10.5916/jamet.2020.44.4.333

Yilmaz, M. "The effect of inlet flow baffles on heat transfer." International communications in Heat and Mass Transfer 30, no. 8 (2003): 1169-1178. https://doi.org/10.1016/s0735-1933(03)00182-9

Phu, Nguyen Minh, and Geun Sik Lee. "Characteristics of pressure and force considering friction in a closed cylinder with a holed piston." Journal of Mechanical Science and Technology 28, no. 6 (2014): 2409-2415. https://doi.org/10.1007/s12206-014-0533-4

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Published

2021-01-13

How to Cite

Phu, N. M., Thao, P. B., & Truyen, D. C. (2021). Heat and Fluid Flow Characteristics of Nanofluid in A Channel Baffled Opposite to The Heated Wall. CFD Letters, 13(1), 33–44. https://doi.org/10.37934/cfdl.13.1.3344
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