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İçerisinde Dik Bölmeler Bulunan Trapez bir Kanalda Bölme Yüksekliğinin Akış ve Isı Transferine Etkisinin İncelenmesi

Year 2022, Volume: 11 Issue: 2, 478 - 489, 30.06.2022
https://doi.org/10.17798/bitlisfen.1033852

Abstract

Bu çalışmada, üst duvarında dik bölmeler bulunan, alt duvarı trapez şeklinde dalgalandırılmış bir kanalda farklı bölme yüksekliğinin akış ve ısı transferine etkileri nanoakışkan ve taban akışkan akışı için sayısal olarak incelenmiştir. Nanoakışkan olarak TiO2 nanopartiküllerin su içerisinde süspansiyonu kullanılmış ve nanopartikül hacim oranı, φ=%1 sabit tutulmuştur. Sayısal çalışma, Hesaplamalı Akışkanlar Dinamiği (HAD) tabanlı FLUENT 15.0 programı ile iki boyutlu gerçekleştirilmiştir. Kanalın bölmeler içeren üst yüzeyinin adyabatik olduğu kabul edilmiş ve alt trapez yüzeyi Tw=360K sabit sıcaklıkta korunmuştur. İki farklı bölme yüksekliği (t=H/2 ve t=2H/3) kullanılarak farklı Reynolds sayıları (200≤Re≤1200) için nanoakışkanın ve taban akışkanın Nusselt sayısı (Nu), sürtünme faktörü (f) ve termo-hidrolik performansı (THP) hesaplanmıştır, ayrıca çalışma bölmelerin olmadığı kanal akışı ile de karşılaştırılmıştır. Kanal içerisinde farklı parametrelerde hız ve sıcaklık görüntüleri elde edilmiştir. Sayısal sonuçlar, trapez bir kanalda bölmelerin yüksekliğine ve nanoakışkana bağlı olarak ısı transferinin önemli ölçüde iyileştiğini, ancak sürtünmenin de bir miktar arttığını göstermiştir. En yüksek termo-hidrolik performans, bölmesiz kanalda taban akışkana göre, TiO2-su nanoakışkan akışında Re=400 ve t=2H/3 bölme yüksekliğinde 1,95 olarak elde edilmiştir.

References

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  • Sriromreun P., Thianpong C., Promvonge P. 2012. Experimental and Numerical Study on Heat Transfer Enhancement in a Channel with Z-shaped Baffles. Int. Commun. Heat Mass Transf., 39 (7): 945–952.
  • Turgut O., Kızılırmak E. 2015. Effects of Reynolds Number, Baffle Angle, and Baffle Distance on 3-d Turbulent Flow and Heat Transfer in a Circular Pipe. Thermal Science, 19 (5): 1633-1648.
  • Promvonge P., Tamna S., Pimsarn M. Thianpong C. 2015. Thermal Characterization in a Circular Tube Fitted with Inclined Horseshoe Baffles. Appl. Therm. Eng., 75: 1147–1155.
  • Kumar R., Kumar A., Chauhan R., Sethi M. 2016. Heat Transfer Enhancement in Solar Air Channel with Broken Multiple V-type Baffle. Case Stud. Therm. Eng., 8: 187–197.
  • Sahel D., Ameur H., Benzeguir R., Kamla Y. 2016. Enhancement of Heat Transfer in a Rectangular Channel with Perforated Baffles. Appl. Therm. Eng., 101:156–164.
  • Alnak D.E. 2020. Thermohydraulic Performance Study of Different Square Baffle Angles in Cross-Corrugated Channel. Journal of Energy Storage, 28: 101295.
  • Karabulut K. 2020. Heat Transfer and Pressure Drop Evaluation of Different Triangular Baffle Placement Angles in Cross-corrugated Triangular Channels. Thermal Science, 24 (1A): 355-365.
  • Olfian H., Sheshpoli A.Z., Ajarostaghi S.S.M. 2020. Numerical Evaluation of the Thermal Performance of a Solar Air Heater Equipped with Two Different Types of Baffles. Heat Transfer, 49: 1149-1169.
  • Saha S. 2021. Numerical Study of Air-Flow Phenomena Through a Baffled Rectangular Micro-channel. Journal of Modeling and Optimization, 13 (2): 51-57.
  • El Habet M.A., Ahmed S.A., Saleh M.A. 2021. Thermal/hydraulic Characteristics of a Rectangular Channel with Inline/Staggerded Perforated Baffles. Int. Comm. Heat Mass Tranf., 128:105591.
  • Salhi J.E., Zarrouk T., Salhi N. 2021. Numerical Study of the Thermo-energy of a Tubular Heat Exchanger with Longitudinal Baffles. Materials Today: Proceedings, 45: 7306-7313.
  • Bidari M.V., Nagaraj P.B., Lalagi G. 2021. Influence of Different Types of Vortex Generators (VGs) to Enhance Heat Transfer Performance in Heat Exchangers: A review. Int. Jour. Ambient Energy, 1-23.
  • Phu N.M., Thao P.B., Hap N.V. 2021. Effective Efficiency Assessment of a Solar Air Heater Having Baffles Spaced with Different Successive Ratios. Case Studies in Thermal Engineering, 28: 101486.
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  • Qi C., Wan Y.L., Li C.Y., Han D.T., Rao Z.H. 2017. Experimental and Numerical Research on the Flow and Heat Transfer Characteristics of TiO2-water Nanofluids in a Corrugated Tube. Int. Journal of Heat and Mass Transfer, 115: 1072–1084.
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Investigation of Effects of Baffle Heights on Flow and Heat Transfer in a Trapezoidal Channel with Vertical Baffles

Year 2022, Volume: 11 Issue: 2, 478 - 489, 30.06.2022
https://doi.org/10.17798/bitlisfen.1033852

Abstract

In this study, the effects of baffle heights on the flow and heat transfer in a trapezoidal channel with vertical baffles on the upper wall and trapezoidal shaped the lower wall were numerically investigated for nanofluid and base fluid. The suspension of TiO2 nanoparticles in water was used as nanofluid and the particle volume fraction was kept constant at φ = 1%. Numerical study was realized with Computational Fluid Dynamics (CFD) based FLUENT 15.0 program. The upper surface of the channel was adiabatic and the lower trapezoidal surface was kept at a constant temperature (Tw = 360K). Nusselt number (Nu), friction factor (f) and thermo-hydraulic performance (THP) of nanofluid and base fluid were calculated for 200 ≤ Re ≤ 1200 Reynolds numbers using two different baffle heights (t = H/2 and t = 2H/3) and also the study was compared to channel flow without baffles. The velocity and temperature contours were obtained in different parameters in the channel. The numerical results showed that in a trapezoidal channel, the heat transfer improved significantly depending on the height of the baffles and nanofluid, but the friction also increased slightly. The highest THP was obtained as 1.95 in the TiO2-su nanofluid flow at Re = 400 and t = 2H/3 baffle height in the channel without baffles according to the base fluid.

References

  • Lei Y.G., He Y.L., Li R. Gao Y.F. 2008. Effects of Baffle Inclination Angle on Flow and Heat Transfer of a Heat Exchanger with Helical Baffles. Chem. Eng. Process, 47 (12): 2336–2345.
  • Keklikcioglu O., Ozceyhan V. 2021. Thermohydraulic Performance Evaluation for Horizontal Tube by Using Combination of Modified Coiled Wire Inserts and Graphene Nanoplatelet-Water Nanofluids. International Communications in Heat and Mass Transfer, 123: 105206.
  • Akdag U., Akcay S., Demiral D. 2014. Heat Transfer Enhancement with Laminar Pulsating Nanofluid Flow in a Wavy Channel. International Communications in Heat and Mass Transfer, 59: 17–23.
  • Skullong S., Promvonge P., Thianpong C., Pimsarn M. 2016. Thermal Performance in Solar Air Heater Channel with Combined Wavy-Groove and Perforated-Delta Wing Vortex Generators. Applied Thermal Engineering, 100: 611–620.
  • Akdag U., Akcay S., Demiral D. 2017. Heat Transfer Enhancement with Nanofluids Under Laminar Pulsating Flow in a Trapezoidal-Corrugated Channel. Progress in Computational Fluid Dynamics, An International Journal, 17 (5): 302-312.
  • Kumar R., Goel V., Kumar A. 2018. Investigation of Heat Transfer Augmentation and Friction Factor in Triangular Duct Solar Air Heater Due to Forward Facing Chamfered Rectangular Ribs: A CFD Based Analysis. Renew Energy, 115: 824–835.
  • Nakhchi M.E. 2019. Experimental Optimization of Geometrical Parameters on Heat Transfer and Pressure Drop Inside Sinusoidal Wavy Channels. Therm. Sci. Eng. Prog., 9: 121–31.
  • Kaood A., Hassan M.A. 2020. Thermo-Hydraulic Performance of Nanofluids Flow in Various Internally Corrugated Tubes. Chemical Engineering & Processing: Process Intensification, 154: 08043.
  • Li Z., Gao Y. 2017. Numerical Study of Turbulent Flow and Heat Transfer in Cross Corrugated Triangular Ducts with Delta-Shaped Baffles. Int. J. Heat Mass Transf., 108: 658–670.
  • Karwa R., Maheshwari B.K. 2009. Heat Transfer and Friction in an Asymmetrically Heated Rectangular Duct with Half and Fully Perforated Baffles at Different Pitches. International Communication Heat and Mass Transfer, 36: 264–268.
  • Sripattanapipat S., Promvonge P. 2009. Numerical Analysis of Laminar Heat Transfer in a Channel with Diamond-Shaped Baffles. Int. Communication Heat and Mass Transfer, 36 (1): 32-38.
  • Kwankaomeng S., Promvonge P. 2010. Numerical Prediction on Laminar Heat Transfer in Square Duct with 30° Angled Baffle on One Wall. Int. Communication Heat and Mass Transfer, 37: 857-866.
  • Nanan K., Piriyarungrod N., Thianpong C., Wongcharee K., Eiamsa-ard S. 2016. Numerical and Experimental Investigations of Heat Transfer Enhancement in Circular Tubes with Transverse Twisted-Baffles. Heat Mass Transfer, 52: 2177–2192.
  • Keklikcioglu O., Ozceyhan V. 2016. Experimental Investigation on Heat Transfer Enhancement of a Tube with Coiled-Wire Inserts Installed with a Separation from the Tube Wall. International Communications in Heat and Mass Transfer, 78: 88-94.
  • Sriromreun P. 2017. Numerical Study on Heat Transfer Enhancement in a Rectangular Duct with Incline Shaped Baffles, Chem. Eng. Trans., 57: 1243–1248.
  • Menasria F., Zedairia M., Moummi A. 2017. Numerical Study of Thermohydraulic Performance of Solar Air Heater Duct Equipped with Novel Continuous Rectangular Baffles with High Aspect Ratio. Energy, 133: 593-608.
  • Akcay S., Akdag U. 2018. Parametric Investigation of Effect on Heat Transfer of Pulsating Flow of Nanofluids in a Tube Using Circular Rings. Pamukkale University, Journal of Engineering Sciences, 24 (4): 597-604.
  • Tang S.Z., Wang F.L., He Y.L., Yu Y., Tong Z.X. 2019. Parametric Optimization of H-type Finned Tube with Longitudinal Vortex Generators by Response Surface Model and Genetic Algorithm. Appl. Energy, 239: 908–918.
  • Modi J.A., Rathod M.K. 2019. Comparative Study of Heat Transfer Enhancement and Pressure Drop for Fin-And-Circular Tube Compact Heat Exchangers with Sinusoidal Wavy and Elliptical Curved Rectangular Winglet Vortex Generator. Int. Journal of Heat and Mass Transfer, 141: 310-326.
  • Luan N.T., Phu N.M. 2020. Thermohydraulic Correlations and Exergy Analysis of a Solar Air Heater Duct with Inclined Baffles. Case Stud. Therm. Eng., 21:100672.
  • Bensaci C.E., Moummi A., Sanchez de la Flor F.J., Rodriguez Jara E.A., Rincon-Casado A., Ruiz-Pardo A. 2020. Numerical and Experimental Study of the Heat Transfer and Hydraulic Performance of Solar Air Heaters with Different Baffle Positions. Renew Energy, 155: 1231–1244.
  • Wang D., Liu J., Liu Y., Wang Y., Li B., Liu J. 2020. Evaluation of the Performance of an Improved Solar Air Heater with “S” Shaped Ribs with Gap. Sol. Energy, 195: 89–101.
  • Promvonge P., Promthaisong P., Skullong S. 2020. Experimental and Numerical Heat Transfer Study of Turbulent Tube Flow Through Discrete V-Winglets. Int. Journal of Heat and Mass Transfer, 151:119351.
  • Promvonge P., Skullong S. 2020. Thermo-hydraulic Performance in Heat Exchanger Tube with V-shaped Winglet Vortex Generator. Appl. Therm. Eng., 164:114424.
  • Sun Z., Zhang K., Li W., Chen Q., Zheng N. 2020. Investigations of the Turbulent Thermal-hydraulic Performance in Circular Heat Exchanger Tubes with Multiple Rectangular Winglet Vortex Generators. Appl. Therm. Eng., 168:114838.
  • Nakhchi M.E., Hatami M., Rahmati M. 2021. Experimental Investigation of Performance Improvement of Double-Pipe Heat Exchangers with Novel Perforated Elliptic Turbulators. International Journal Thermal Science, 168:107057.
  • Xiao H., Liu P., Liu Z., Liu W. 2021. Performance Analyses in Parabolic Trough Collectors by inserting Novel Inclined Curved-Twisted Baffles. Renewable Energy, 165:14-27.
  • Chang S.W., Cheng T.H. 2021. Thermal Performance of Channel Flow with Detached and Attached Pin-Fins of Hybrid Shapes Under Inlet Flow Pulsation. International Journal of Heat and Mass Transfer, 164: 120554.
  • Sureandhar G., Srinivasan G., Muthukumar P., Senthilmurugan S. 2021. Performance Analysis of Arc Rib Fin Embedded in a Solar Air Heater. Therm. Sci. Eng. Prog., 23:100891.
  • Sriromreun P., Thianpong C., Promvonge P. 2012. Experimental and Numerical Study on Heat Transfer Enhancement in a Channel with Z-shaped Baffles. Int. Commun. Heat Mass Transf., 39 (7): 945–952.
  • Turgut O., Kızılırmak E. 2015. Effects of Reynolds Number, Baffle Angle, and Baffle Distance on 3-d Turbulent Flow and Heat Transfer in a Circular Pipe. Thermal Science, 19 (5): 1633-1648.
  • Promvonge P., Tamna S., Pimsarn M. Thianpong C. 2015. Thermal Characterization in a Circular Tube Fitted with Inclined Horseshoe Baffles. Appl. Therm. Eng., 75: 1147–1155.
  • Kumar R., Kumar A., Chauhan R., Sethi M. 2016. Heat Transfer Enhancement in Solar Air Channel with Broken Multiple V-type Baffle. Case Stud. Therm. Eng., 8: 187–197.
  • Sahel D., Ameur H., Benzeguir R., Kamla Y. 2016. Enhancement of Heat Transfer in a Rectangular Channel with Perforated Baffles. Appl. Therm. Eng., 101:156–164.
  • Alnak D.E. 2020. Thermohydraulic Performance Study of Different Square Baffle Angles in Cross-Corrugated Channel. Journal of Energy Storage, 28: 101295.
  • Karabulut K. 2020. Heat Transfer and Pressure Drop Evaluation of Different Triangular Baffle Placement Angles in Cross-corrugated Triangular Channels. Thermal Science, 24 (1A): 355-365.
  • Olfian H., Sheshpoli A.Z., Ajarostaghi S.S.M. 2020. Numerical Evaluation of the Thermal Performance of a Solar Air Heater Equipped with Two Different Types of Baffles. Heat Transfer, 49: 1149-1169.
  • Saha S. 2021. Numerical Study of Air-Flow Phenomena Through a Baffled Rectangular Micro-channel. Journal of Modeling and Optimization, 13 (2): 51-57.
  • El Habet M.A., Ahmed S.A., Saleh M.A. 2021. Thermal/hydraulic Characteristics of a Rectangular Channel with Inline/Staggerded Perforated Baffles. Int. Comm. Heat Mass Tranf., 128:105591.
  • Salhi J.E., Zarrouk T., Salhi N. 2021. Numerical Study of the Thermo-energy of a Tubular Heat Exchanger with Longitudinal Baffles. Materials Today: Proceedings, 45: 7306-7313.
  • Bidari M.V., Nagaraj P.B., Lalagi G. 2021. Influence of Different Types of Vortex Generators (VGs) to Enhance Heat Transfer Performance in Heat Exchangers: A review. Int. Jour. Ambient Energy, 1-23.
  • Phu N.M., Thao P.B., Hap N.V. 2021. Effective Efficiency Assessment of a Solar Air Heater Having Baffles Spaced with Different Successive Ratios. Case Studies in Thermal Engineering, 28: 101486.
  • Chandrasekar M., Suresh S., Bose A.C. 2010. Experimental Studies on Heat Transfer and Friction Factor Characteristics of Al2O3/water Nanofluid in a Circular Pipe Under Laminar Flow with Wire Coil Inserts. Exp. Therm. Fluid Sci., 34 (2): 122–30.
  • Huminic G., and Huminic A. 2016. Heat Transfer and Flow Characteristics of Conventional Fluids and Nanofluids in Curved Tubes: A review. Renew. Sustain. Energy Rev., 58: 1327–1347.
  • Fazeli H., Madani S., Mashaei P.R. 2016. Nanofluid Forced Convection in Entrance Region of a Baffled Channel Considering Nanoparticle Migration. Appl. Therm. Eng., 106: 293–306.
  • Nanan K., Piriyarungrod N., Thianpong C., Wongcharee K., Eiamsa-ard S. 2016. Numerical and Experimental Investigations of Heat Transfer Enhancement in Circular Tubes with Transverse Twisted-Baffles. Heat Mass Transfer, 52: 2177–2192.
  • Qi C., Wan Y.L., Li C.Y., Han D.T., Rao Z.H. 2017. Experimental and Numerical Research on the Flow and Heat Transfer Characteristics of TiO2-water Nanofluids in a Corrugated Tube. Int. Journal of Heat and Mass Transfer, 115: 1072–1084.
  • Akcay S., Akdag U. 2018. Parametric Investigation of Effect on Heat Transfer of Pulsating Flow of Nanofluids in a Tube Using Circular Rings. Pamukkale University, Journal of Engineering Sciences, 24 (4): 597-604.
  • Rashidi S., Eskandarian M., Mahian O., Poncet S. 2019. Combination of Nanofluid and Inserts for Heat Transfer Enhancement, Gaps and Challenges. Journal of Thermal Analysis and Calorimetry, 135: 37–460
  • Mei S., Qi C., Luo T., Zhai X., Yan Y. 2019. Effects of Magnetic Field on Thermo-hydraulic Performance of Fe3O4-water Nanofluids in a Corrugated Tube. Int. Journal of Heat and Mass Transfer, 128: 24–45.
  • Karouei S.H.H., Ajarostaghi S.S.M., Bandpy M.G., Fard, S.R.H. 2021. Laminar Heat Transfer and Fluid Flow of Two Various Hybrid Nanofluids in a Helical Double Pipe Heat Exchanger Equipped with an Innovative Curved Conical Turbulator. Journal of Thermal Analysis and Calorimetry, 143: 1455–1466.
  • Heshmati A., Mohammed H.A. and Darus A.N. 2014. Mixed Convection Heat Transfer of Nanofluids Over Backward Facing Step Having a Slotted Baffle. Applied Mathematics and Computation, 240: 368–386.
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There are 61 citations in total.

Details

Primary Language Turkish
Subjects Engineering
Journal Section Araştırma Makalesi
Authors

Selma Akçay 0000-0003-2654-0702

Publication Date June 30, 2022
Submission Date December 7, 2021
Acceptance Date June 1, 2022
Published in Issue Year 2022 Volume: 11 Issue: 2

Cite

IEEE S. Akçay, “İçerisinde Dik Bölmeler Bulunan Trapez bir Kanalda Bölme Yüksekliğinin Akış ve Isı Transferine Etkisinin İncelenmesi”, Bitlis Eren Üniversitesi Fen Bilimleri Dergisi, vol. 11, no. 2, pp. 478–489, 2022, doi: 10.17798/bitlisfen.1033852.

Bitlis Eren University
Journal of Science Editor
Bitlis Eren University Graduate Institute
Bes Minare Mah. Ahmet Eren Bulvari, Merkez Kampus, 13000 BITLIS