Experimental Study of Enhanced Heat Transfer in a Circular Tube Heat Exchanger with Sinusoidal Baffles
Article Sidebar
Published:
May 27, 2019
Keywords:
Sinusoidal Baffle Heat Exchanger Heat Transfer Friction Factor Vortex Generator
Main Article Content
Abstract
This research presents experimental study on heat transfer enhancement in a constant heat fluxed tube inserted with sinusoidal baffle vortex generator. Several sinusoidal baffle parameters were introduced such as pitch ratio (p/D = PR = 2, 3 and 4) and blockage ratio (e/D = AR = 0.1, 0.2, 0.3 and 0.4). Various relative baffle heights and pitches were tested to investigate the effect of the sinusoidal baffles at on heat transfer and pressure loss. The study was conducted by varying the airflow rate through the tested tube for Reynolds number (Re) from 4,500 - 29,200. Heat transfer and pressure loss were presented in terms of Nusselt number (Nu) and friction factor (f) respectively. The results have shown that the tube with sinusoidal baffle provides a considerable increase in heat transfer and pressure loss in comparison with the smooth tube in the range of 52 - 84 % and 81 - 99 % respectively. The highest Nu/Nu0 and f/f0 were observed at PR = 0.2 and AR = 0.4 in the range of 6.0 - 6.5 times and 82.7 - 95.1 times respectively, whereas the maximum thermal enhancement factor () was at PR = 0.2 and AR = 0.2 of about 1.71 at Re = 4,500.
Article Details
How to Cite
[1]
สุวรรณพันธุ์ ส., แสนคำวงษ์ เ., and ชัยอมฤต ช., “Experimental Study of Enhanced Heat Transfer in a Circular Tube Heat Exchanger with Sinusoidal Baffles”, RMUTI Journal, vol. 12, no. 3, pp. 79–95, May 2019.
Section
Research article
References
[1] Skullong, S., Promvonge, P., Thianpong, C., and Pimsarn, M. (2018). Thermal Performance of Heat Exchanger Tube Inserted with Curved-Winglet Tapes. Applied Thermal Engineering. Vol. 129, pp. 1197-1211. DOI: 10.1016/j.applthermaleng.2017.10.110
[2] Skullong, S., Promvonge, P., Thianpong, C., and Jayranaiwachira, N. (2017). Thermal Behaviors in a Round Tube Equipped with Quadruple Perforated-Delta-Winglet Pairs. Applied Thermal Engineering. Vol. 115, pp. 229-243. DOI: 10.1016/j.applthermaleng.2016.12.082
[3] Skullong, S., Promvonge, P., Thianpong, C., and Pimsarn, M. (2016). Heat Transfer and Turbulent Flow Friction in a Round Tube with Staggered-Winglet Perforated-Tapes. International Journal of Heat and Mass Transfer. Vol. 95, pp. 230-242. DOI: 10.1016/j.ijheatmasstransfer.2015.12.007
[4] Skullong, S., Promvonge, P., Jayranaiwachira, N., and Thianpong, C. (2016). Experimental and Numerical Heat Transfer Investigation in a Tubular Heat Exchanger with Delta-Wing Tape Inserts. Chemical Engineering and Processing: Process Intensification. Vol. 109, pp. 164-177. DOI: 10.1016/j.cep.2016.09.005
[5] Xu, Y., Islam, M. D., and Kharoua, N. (2018). Experimental Study of Thermal Performance and Flow Behaviour with Winglet Vortex Generators in a Circular Tube. Applied Thermal Engineering. Vol. 135, pp. 257-268. DOI: 10.1016/j.applthermaleng.2018.01.112
[6] Liu, H. L., Li, H., He, Y. L., and Chen, Z. T. (2018). Heat Transfer and Flow Characteristics in a Circular Tube Fitted with Rectangular Winglet Vortex Generators. International Journal of Heat and Mass Transfer. Vol. 126, Part A, pp. 989-1006. DOI: 10.1016/j.ijheatmasstransfer.2018.05.038
[7] Wijayanta, A. T., Istanto, T., Kariya, K., and Miyara, A. (2017). Heat Transfer Enhancement of Internal Flow by Inserting Punched Delta Winglet Vortex Generators with Various Attack Angles. Experimental Thermal and Fluid Science. Vol. 87, pp. 141-148. DOI: 10.1016/j.expthermflusci.2017.05.002
[8] Chokphoemphun, S., Pimsarn, M., Thianpong, C., and Promvonge, P. (2015). Heat Transfer Augmentation in a Circular Tube with Winglet Vortex Generators. Chinese Journal of Chemical Engineering. Vol. 23, Issue 4, pp. 605-614. DOI: 10.1016/j.cjche.2014.04.002
[9] Suwannapan, S., Skullong, S., and Promvonge, P. (2015). Thermal Characteristics in a Heat Exchanger Tube Fitted with Zigzag‐Winglet Perforated‐Tapes. Journal of Research and Applications in Mechanical Engineering. Vol. 3, No. 1, pp. 29-36. DOI: 10.14456/jrame.2015.3
[10] Bhuiya, M. M. K., Sayema, A. S. M., Islam, M., Chowdhur, M. S. U., and Shahabuddin, M. (2014). Performance Assessment in a Heat Exchanger Tube Fitted with Double Counter Twisted Tape Inserts. International Communications in Heat and Mass Transfer. Vol. 50, pp. 25-33. DOI: 10.1016/j.icheatmasstransfer.2013.11.005
[11] Bhuiya, M. M. K., Chowdhur, M. S. U., Shahabuddin, M., Saha, M., and Memon, L. A. (2013). Thermal Characteristics in a Heat Exchanger Tube Fitted with Triple Twisted Tape Inserts. International Communications in Heat and Mass Transfer. Vol. 48, pp. 124-132. DOI: 10.1016/j.icheatmasstransfer.2013.08.024
[12] Chokphoemphun, S., Pimsarn, M., Thianpong, C., and Promvonge, P. (2015). Thermal Performance of Tubular Heat Exchanger with Multiple Twisted-Tape Inserts. Chinese Journal of Chemical Engineering. Vol. 23, Issue 5, pp. 755-762. DOI: 10.1016/j.cjche.2015.01.003
[13] Nanan, K., Thianpong, C., Promvonge, P., and Eiamsa-ard, S. (2014). Investigation of Heat Transfer Enhancement by Perforated Helical Twisted-Tapes. International Communications in Heat and Mass Transfer. Vol. 52, pp. 106-112. DOI: 10.1016/j.icheatmasstransfer.2014.01.018
[14] Nanan, K., Yongsiri, K., Wongcharee, K., Thianpong, C., and Eiamsa-ard, S. (2013). Heat Transfer Enhancement by Helically Twisted Tapes Inducing Co- and Counter-Swirl Flows. International Communications in Heat and Mass Transfer. Vol. 46, pp. 67-73. DOI: 10.1016/j.icheatmasstransfer.2013.05.015
[15] Hong, Y., Dua, J., Wang, S., Huang, S. M., and Ye, W. B. (2018). Heat Transfer and Fluid Flow Behaviors in a Tube with Modified Wire Coils. International Communications in Heat and Mass Transfer. Vol. 124, pp. 1347-1360.
[16] Promvonge, P., Koolnapadol, N., Pimsarn, M., and Thianpong, C. (2014). Thermal Performance Enhancement in a Heat Exchanger Tube Fitted with Inclined Vortex Rings. Applied Thermal Engineering. Vol. 62, Issue 1, pp. 285-292. DOI: 10.1016/j.applthermaleng.2013.09.031
[17] Eiamsa-ard, S., Kongkaitpaiboon, V., and Nanan, K. (2013). Thermohydraulics of Turbulent Flow Through Heat Exchanger Tubes Fitted with Circular-Rings and Twisted Tapes. Chinese Journal of Chemical Engineering. Vol. 21, Issue 6, pp. 585-593. DOI: 10.1016/S1004-9541(13)60504-2
[18] Thianpong, C., Yongsiri, K., Nanan, K., and Eiamsa-ard, S. (2012). Thermal Performance Evaluation of Heat Exchangers Fitted with Twisted-Ring Turbulators. International Communications in Heat and Mass Transfer. Vol. 39, Issue 6, pp. 861-868. DOI: 10.1016/j.icheatmasstransfer.2012.04.004
[19] Promthaisong, P. and Suwannapan, S. (2018). Turbulent Flow Behaviors on Thermal Enhancement in a Circular Tube Heat Exchanger Equipped with Sinusoidal Baffles. Journal of Research and Applications in Mechanical Engineering. Vol. 6, No. 2, pp. 95-112. DOI: 10.14456/jrame.2018.10
[20] Webb, R. L. (1992). Principles of Enhanced Heat Transfer. New York. John-Wiley & Sons.
[21] Incropera, F. P., DeWitt, P. D., Bergman, T. L. and Lavine, A. S. (2006). Fundamentals of Heat and Mass Transfer. John-Wiley & Sons.
[2] Skullong, S., Promvonge, P., Thianpong, C., and Jayranaiwachira, N. (2017). Thermal Behaviors in a Round Tube Equipped with Quadruple Perforated-Delta-Winglet Pairs. Applied Thermal Engineering. Vol. 115, pp. 229-243. DOI: 10.1016/j.applthermaleng.2016.12.082
[3] Skullong, S., Promvonge, P., Thianpong, C., and Pimsarn, M. (2016). Heat Transfer and Turbulent Flow Friction in a Round Tube with Staggered-Winglet Perforated-Tapes. International Journal of Heat and Mass Transfer. Vol. 95, pp. 230-242. DOI: 10.1016/j.ijheatmasstransfer.2015.12.007
[4] Skullong, S., Promvonge, P., Jayranaiwachira, N., and Thianpong, C. (2016). Experimental and Numerical Heat Transfer Investigation in a Tubular Heat Exchanger with Delta-Wing Tape Inserts. Chemical Engineering and Processing: Process Intensification. Vol. 109, pp. 164-177. DOI: 10.1016/j.cep.2016.09.005
[5] Xu, Y., Islam, M. D., and Kharoua, N. (2018). Experimental Study of Thermal Performance and Flow Behaviour with Winglet Vortex Generators in a Circular Tube. Applied Thermal Engineering. Vol. 135, pp. 257-268. DOI: 10.1016/j.applthermaleng.2018.01.112
[6] Liu, H. L., Li, H., He, Y. L., and Chen, Z. T. (2018). Heat Transfer and Flow Characteristics in a Circular Tube Fitted with Rectangular Winglet Vortex Generators. International Journal of Heat and Mass Transfer. Vol. 126, Part A, pp. 989-1006. DOI: 10.1016/j.ijheatmasstransfer.2018.05.038
[7] Wijayanta, A. T., Istanto, T., Kariya, K., and Miyara, A. (2017). Heat Transfer Enhancement of Internal Flow by Inserting Punched Delta Winglet Vortex Generators with Various Attack Angles. Experimental Thermal and Fluid Science. Vol. 87, pp. 141-148. DOI: 10.1016/j.expthermflusci.2017.05.002
[8] Chokphoemphun, S., Pimsarn, M., Thianpong, C., and Promvonge, P. (2015). Heat Transfer Augmentation in a Circular Tube with Winglet Vortex Generators. Chinese Journal of Chemical Engineering. Vol. 23, Issue 4, pp. 605-614. DOI: 10.1016/j.cjche.2014.04.002
[9] Suwannapan, S., Skullong, S., and Promvonge, P. (2015). Thermal Characteristics in a Heat Exchanger Tube Fitted with Zigzag‐Winglet Perforated‐Tapes. Journal of Research and Applications in Mechanical Engineering. Vol. 3, No. 1, pp. 29-36. DOI: 10.14456/jrame.2015.3
[10] Bhuiya, M. M. K., Sayema, A. S. M., Islam, M., Chowdhur, M. S. U., and Shahabuddin, M. (2014). Performance Assessment in a Heat Exchanger Tube Fitted with Double Counter Twisted Tape Inserts. International Communications in Heat and Mass Transfer. Vol. 50, pp. 25-33. DOI: 10.1016/j.icheatmasstransfer.2013.11.005
[11] Bhuiya, M. M. K., Chowdhur, M. S. U., Shahabuddin, M., Saha, M., and Memon, L. A. (2013). Thermal Characteristics in a Heat Exchanger Tube Fitted with Triple Twisted Tape Inserts. International Communications in Heat and Mass Transfer. Vol. 48, pp. 124-132. DOI: 10.1016/j.icheatmasstransfer.2013.08.024
[12] Chokphoemphun, S., Pimsarn, M., Thianpong, C., and Promvonge, P. (2015). Thermal Performance of Tubular Heat Exchanger with Multiple Twisted-Tape Inserts. Chinese Journal of Chemical Engineering. Vol. 23, Issue 5, pp. 755-762. DOI: 10.1016/j.cjche.2015.01.003
[13] Nanan, K., Thianpong, C., Promvonge, P., and Eiamsa-ard, S. (2014). Investigation of Heat Transfer Enhancement by Perforated Helical Twisted-Tapes. International Communications in Heat and Mass Transfer. Vol. 52, pp. 106-112. DOI: 10.1016/j.icheatmasstransfer.2014.01.018
[14] Nanan, K., Yongsiri, K., Wongcharee, K., Thianpong, C., and Eiamsa-ard, S. (2013). Heat Transfer Enhancement by Helically Twisted Tapes Inducing Co- and Counter-Swirl Flows. International Communications in Heat and Mass Transfer. Vol. 46, pp. 67-73. DOI: 10.1016/j.icheatmasstransfer.2013.05.015
[15] Hong, Y., Dua, J., Wang, S., Huang, S. M., and Ye, W. B. (2018). Heat Transfer and Fluid Flow Behaviors in a Tube with Modified Wire Coils. International Communications in Heat and Mass Transfer. Vol. 124, pp. 1347-1360.
[16] Promvonge, P., Koolnapadol, N., Pimsarn, M., and Thianpong, C. (2014). Thermal Performance Enhancement in a Heat Exchanger Tube Fitted with Inclined Vortex Rings. Applied Thermal Engineering. Vol. 62, Issue 1, pp. 285-292. DOI: 10.1016/j.applthermaleng.2013.09.031
[17] Eiamsa-ard, S., Kongkaitpaiboon, V., and Nanan, K. (2013). Thermohydraulics of Turbulent Flow Through Heat Exchanger Tubes Fitted with Circular-Rings and Twisted Tapes. Chinese Journal of Chemical Engineering. Vol. 21, Issue 6, pp. 585-593. DOI: 10.1016/S1004-9541(13)60504-2
[18] Thianpong, C., Yongsiri, K., Nanan, K., and Eiamsa-ard, S. (2012). Thermal Performance Evaluation of Heat Exchangers Fitted with Twisted-Ring Turbulators. International Communications in Heat and Mass Transfer. Vol. 39, Issue 6, pp. 861-868. DOI: 10.1016/j.icheatmasstransfer.2012.04.004
[19] Promthaisong, P. and Suwannapan, S. (2018). Turbulent Flow Behaviors on Thermal Enhancement in a Circular Tube Heat Exchanger Equipped with Sinusoidal Baffles. Journal of Research and Applications in Mechanical Engineering. Vol. 6, No. 2, pp. 95-112. DOI: 10.14456/jrame.2018.10
[20] Webb, R. L. (1992). Principles of Enhanced Heat Transfer. New York. John-Wiley & Sons.
[21] Incropera, F. P., DeWitt, P. D., Bergman, T. L. and Lavine, A. S. (2006). Fundamentals of Heat and Mass Transfer. John-Wiley & Sons.