THE PIPE DIAMETER EFFECT ON HEAT TRANSFER OF HELICAL COIL HEAT EXCHANGER IN THE SOLAR WATER HEATER STORAGE TANK

Andhita Mustikaningtyas, Universitas Negeri Yogyakarta, Indonesia
Sihana Sihana, Universitas Gadjah Mada, Indonesia
Ester Wijayanti, Universitas Gadjah Mada, Indonesia
Naufal Riyandi, Trinity College Dublin, Ireland

 10.21831/dinamika.v9i1.72714

Abstract


Solar thermal collectors are widely applied in various areas; one of them is solar water heating system. Inside the solar water heating system, there is a heat exchanger system located on thermal storage tank. It needs to develop the most efficient heat exchanger with some limited installation area. Helical coil heat exchanger is chosen as an alternative for saving the installation space by the coil helix geometry. The main difference between the helical heat exchanger and shell and tube heat exchanger is the geometry. This geometry causes differences in heat transfer process, as a result of the secondary flow in the fluid. This study analyzed the effect of the pipe diameter variance to heat transfer of helical coil heat exchanger, applied to solar water heating systems, performed by using three helical coils with pipe diameters variation, with an outer diameter of 6.4; 4.9; 2.95 mm. The heat transfer performance was analyzed by dimensionless number relationship with Wilson Plot technique. The experiment showed that, the performance of helical coil heat exchanger is better at bigger diameter. Forced convection inside the pipe obeyed Nui=ci.Re^0.7 with various  ci  number. The values of  ci  are bigger at bigger pipe diameter and higher hot water temperature.

Keywords


Heat transfer coefficient, Helix coil, Reynolds number, Solar water heater, Wilson Plot

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References


Amori, K. E., & Sherza, J. S. (2013). An Investigation of Shell-Helical Coiled Tube Heat Exchanger Used for Solar Water Heating System. Innovative Systems Design and Engineering, 4(15)

Duan, Yiran., Zhang, Xiaoyan., Han, Ziyi., Liu, Qingjiang., Li, Xingge., Li, Linchuan (2024). Numerical investigation of coupled heat transfer and flow characteristics in helical coil heat exchanger for mine water waste heat recovery. International Journal of Thermal Sciences, Volume 202, 109089, ISSN 1290-0729, https://doi.org/10.1016/j.ijthermalsci.2024.109089.

Hozien, Osama., El-Maghlany, Wael M., Sorour, Medhat M., Mohamed, Yasser S (2021). Experimental study on heat transfer and pressure drop characteristics utilizing three types of water based nanofluids in a helical coil under isothermal boundary condition. Journal of the Taiwan Institute of Chemical Engineers, Volume 128, Pages 237-252, ISSN 1876-1070, https://doi.org/10.1016/j.jtice.2021.08.028.

Jayakumar, J. S. (2012). Helically Coiled Heat Exchanger. Prof. Dept of Mechanical Engineering. Amrita School of Engineering. India

Kern, D. Q. (1965). ProcessHeat Transfer. McGraw-Hill, Japan

Langerova, Erik., Matuska, Tomas (2023). One-dimensional modelling of sensible heat storage tanks with immersed helical coil heat exchangers: A critical review, Journal of Energy Storage, Volume 72, Part C, 108507, ISSN 2352-152X, https://doi.org/10.1016/j.est.2023.108507.

Missaoui, Sami., Driss, Zied ., Slama, Romdhane Ben., Chaouachi, Bechir (2021). Numerical analysis of the heat pump water heater with immersed helically coiled tubes, Journal of Energy Storage, Volume 39, 102547, ISSN 2352-152X. https://doi.org/10.1016/j.est.2021.102547.

Murugan, M., Saravanan A., Elumalai, P.V., Kumar, Pramod., Saleel, C. Ahamed., Samuel, Olusegun David., Setiyo, Muji., Enweremadu, Christopher C., Afzal, Asif (2022). An overview on energy and exergy analysis of solar thermal collectors with passive performance enhancers. Alexandria Engineering Journal, Volume 61, Issue 10, 2022. Pages 8123-8147, ISSN 1110-0168. https://doi.org/10.1016/j.aej.2022.01.052.

Najafabadi, Maryam Fallah., Farhadi, Mousa., Rostami, Hossein Talebi (2022). Numerically analysis of a Phase-change Material in concentric double-pipe helical coil with turbulent flow as thermal storage unit in solar water heaters. Journal of Energy Storage, Volume 55, Part C, 105712, ISSN 2352-152X,https://doi.org/10.1016/j.est.2022.105712.

Prabhanjan, D. G., Raghavan, G. S. V., & Rennie, T. J. (2002). Comparison of Heat Transfer Rates Between a Straight Tube Heat Exchanger and a Helically Coiled Heat Exchanger. lnternational Communication Hesat Mass Transfer, 29(2), 185-191

Prabhanjan, D. G., Rennie, T. J., & Raghavan, G. S. V. (2004). Natural Convection Heat Transfer from Helical Coiled Tubes. International Journal of Thermal Sciences 43, 359–365

Saxena, Abhishek., Agarwal, Nitin., Cuce, Erdem (2020). Thermal performance evaluation of a solar air heater integrated with helical tubes carrying phase change material. Journal of Energy Storage, Volume 30, 101406, ISSN 2352-152X, https://doi.org/10.1016/j.est.2020.101406.

Seara, J. F., Uhıa, F. J., Sieres, J., & Campo, A. (2007). A General Review of the Wilson Plot Method and its Modifications to Determine Convection Coefficients in Heat Exchange Devices. Applied Thermal Engineering, 27, 2745–2757

Shirgirel, N. D., & Kumar, P. V. (2013). Review on Comparative Study between Helical Coil and Straight Tube Heat Exchanger. IOSR Journal of Mechanical and Civil Engineering, (8), 55-59

Yuan, Yuyang., Cao, Jiaming., Zhang, Zhao., Xiao, Zhengyan., Wang, Xuesheng (2024). Experimental and numerical simulation study of a novel double shell-passes multi-layer helically coiled tubes heat exchanger, International Journal of Heat and Mass Transfer, Volume 227, 125497, ISSN 0017-9310,https://doi.org/10.1016/j.ijheatmasstransfer.2024.125497.




DOI: https://doi.org/10.21831/dinamika.v9i1.72714

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