Melting Process of Phase Change Materials in a Triplex-Tube: Arrangement, Newtonian and Non-Newtonian

Document Type : Research Article

Authors

1 صنعتی اراک-مهندسی مکانیک

2 arak university of technology,arak,iran

Abstract

In this paper, a numerical study is presented on the investigation of heat transfer and melting process of phase change material in a finned triplex tube. The non-Newtonian Power-Law model is used to simulate the non-Newtonian fluid and the enthalpy-porosity method is used to simulate the melting process. The results show that the melting process in the case of using Newtonian fluid is more than in the case of using non-Newtonian fluid. Thus, the average value of the melting fraction of the phase change material in 5000 seconds is about 3.03% higher for the Newtonian phase change material. The effect of the two-layer composition of the Newtonian & non-Newtonian phase change material and how they are placed in the middle and outer tubes on the melting process has been investigated. For this purpose, two arrangements have been considered according to the way the fluids are placed in the middle-outer tube: 1. Newtonian & non-Newtonian fluid and 2. Non-Newtonian fluid - Newtonian. The melting process for the Newton-non-Newtonian fluid state is faster than for the non-Newtonian-Newtonian fluid state. The melting fraction in the Newtonian & non-Newtonian fluid states is about 10.32% higher than in the other state. The amount of melting fraction decreases with increasing Consistency index and decreasing Power-law index. The Nusselt number changes are similar to the melting fraction changes.

Keywords

Main Subjects

References

[1] C. Liang, X. Lingling, S. Hongbo, Z. Zhibin, Microencapsulation of butyl stearate as a phase change material by interfacial polycondensation in a polyurea system, Energy Conversion and Management, 50(3) (2009) 723-729.
[2] J.M. Mahdi, S. Lohrasbi, D.D. Ganji, E.C. Nsofor, Accelerated melting of PCM in energy storage systems via novel configuration of fins in the triplex-tube heat exchanger, International Journal of Heat and Mass Transfer, 124 (2018) 663-676.
[3] H. Xu, N. Wang, C. Zhang, Z. Qu, M. Cao, Optimization on the melting performance of triplex-layer PCMs in a horizontal finned shell and tube thermal energy storage unit, Applied Thermal Engineering, 176 (2020) 115409.
[4] F. Li, M. Sheikholeslami, R.N. Dara, M. Jafaryar, A. Shafee, T. Nguyen-Thoi, Z. Li, Numerical study for nanofluid behavior inside a storage finned enclosure involving melting process, Journal of Molecular Liquids, 297 (2020) 111939.
[5] A.A.R. Darzi, M. Jourabian, M. Farhadi, Melting and solidification of PCM enhanced by radial conductive fins and nanoparticles in cylindrical annulus, Energy conversion and management, 118 (2016) 253-263.
[6] K. Bhagat, M. Prabhakar, S.K. Saha, Estimation of thermal performance and design optimization of finned multitube latent heat thermal energy storage, Journal of Energy Storage, 19 (2018) 135-144.
[7] K. Hosseinzadeh, M. Alizadeh, M. Alipour, B. Jafari, D. Ganji, Effect of nanoparticle shape factor and snowflake crystal structure on discharging acceleration LHTESS containing (Al2O3‐GO) HNEPCM, Journal of Molecular Liquids, 289 (2019) 111140.
[8] M.R. Hajizadeh, F. Selimefendigil, T. Muhammad, M. Ramzan, H. Babazadeh, Z. Li, Solidification of PCM with nano powders inside a heat exchanger, Journal of Molecular Liquids, 306 (2020) 112892.
[9] M.R. Hajizadeh, A.N. Keshteli, Q.-V. Bach, Solidification of PCM within a tank with longitudinal-Y shape fins and CuO nanoparticle, Journal of Molecular Liquids, 317 (2020) 114188.
[10] N.S. Bondareva, B. Buonomo, O. Manca, M.A. Sheremet, Heat transfer performance of the finned nano-enhanced phase change material system under the inclination influence, International Journal of Heat and Mass Transfer, 135 (2019) 1063-1072.
[11] S. Wu, H. Wang, S. Xiao, D. Zhu, Numerical simulation on thermal energy storage behavior of Cu/paraffin nanofluids PCMs, Procedia Engineering, 31 (2012) 240-244.
[12] J.M. Mahdi, H.I. Mohammed, E.T. Hashim, P. Talebizadehsardari, E.C. Nsofor, Solidification enhancement with multiple PCMs, cascaded metal foam and nanoparticles in the shell-and-tube energy storage system, Applied Energy, 257 (2020) 113993.
[13] M. Fang, G. Chen, Effects of different multiple PCMs on the performance of a latent thermal energy storage system, Applied Thermal Engineering, 27(5-6) (2007) 994-1000.
[14] H.A. Adine, H. El Qarnia, Numerical analysis of the thermal behaviour of a shell-and-tube heat storage unit using phase change materials, Applied mathematical modelling, 33(4) (2009) 2132-2144.
[15] Z. Hu, A. Li, R. Gao, H. Yin, Enhanced heat transfer for PCM melting in the frustum-shaped unit with multiple PCMs, Journal of Thermal Analysis and Calorimetry, 120(2) (2015) 1407-1416.
[16] G.B. Kim, J.M. Hyun, H.S. Kwak, Transient buoyant convection of a power-law non-Newtonian fluid in an enclosure, International journal of heat and mass transfer, 46(19) (2003) 3605-3617.
[17] O. Turan, J. Lai, R.J. Poole, N. Chakraborty, Laminar natural convection of power-law fluids in a square enclosure submitted from below to a uniform heat flux density, Journal of Non-Newtonian Fluid Mechanics, 199 (2013) 80-95.
[18] M. Shojaeian, M. Yildiz, A. Koşar, Convective heat transfer and second law analysis of non-Newtonian fluid flows with variable thermophysical properties in circular channels, International Communications in Heat and Mass Transfer, 60 (2015) 21-31.
[19] L. Vesjolaja, J.M. Bujalski, K. Vaagsaether, CFD Simulation of Solidification of non-Newtonian Fluid Flowing in a Complex Geometry Pipeline in Turbulent Flow Regime,  (2018).
[20] T. Myers, J. Low, Modelling the solidification of a power-law fluid flowing through a narrow pipe, International journal of thermal sciences, 70 (2013) 127-131.
[21] R. Karami, B. Kamkari, Investigation of the effect of inclination angle on the melting enhancement of phase change material in finned latent heat thermal storage units, Applied Thermal Engineering, 146 (2019) 45-60.
[22] S. Motahar, N. Nikkam, A.A. Alemrajabi, R. Khodabandeh, M.S. Toprak, M. Muhammed, A novel phase change material containing mesoporous silica nanoparticles for thermal storage: a study on thermal conductivity and viscosity, International Communications in Heat and Mass Transfer, 56 (2014) 114-120.
[23] H. Shokouhmand, B. Kamkari, Experimental investigation on melting heat transfer characteristics of lauric acid in a rectangular thermal storage unit, Experimental Thermal and Fluid Science, 50 (2013) 201-212.
[24] S. Mehryan, M. Vaezi, M. Sheremet, M. Ghalambaz, Melting heat transfer of power-law non-Newtonian phase change nano-enhanced n-octadecane-mesoporous silica (MPSiO2), International Journal of Heat and Mass Transfer, 151 (2020) 119385.
Amirkabir Journal of Mechanical Engineering
Volume 54, Issue 5
August 2022
Pages 1167-1180

Files

Share

How to cite

Statistics