Analysis of Thermal and Insulation Performance of Double Glazed Window Doped With Paraffin Wax | ||
| Engineering and Technology Journal | ||
| Article 11, Volume 38, 3A, March 2020, Pages 383-393 PDF (690.77 K) | ||
| DOI: 10.30684/etj.v38i3A.448 | ||
| Authors | ||
| Jalal M. Jalil* ; Salih M. Salih* | ||
| Electromechanical Eng. Dept., University of Technology, Baghdad Iraq | ||
| Abstract | ||
| In this paper, a numerical investigation has been performed to study the effect of varying the thermal properties of the paraffin wax on the performance of a double glazed window doped with it during the summer climate of Baghdad (33.3 °N, 44.4 °E). Using FORTRAN (f 90) constructed computer program, finite difference combined with the enthalpy method was utilized to deal with the conduction with phase change problems within the wax. Results obtained show that increasing the density, latent heat, and thickness of the paraffin wax PCM) would increase the temperature-time lag and reduce the temperature decrement factor of the double glazed window, and as a result, improve comparatively the performance of the unit. In contrast, changing the specific heat capacity of the paraffin wax is not a productive (inefficient) technique to develop the performance of the unit. Besides, the recommended thickness of the window (thickness of the PCM) under the ambient condition of Baghdad should be 20 mm or higher. | ||
| Keywords | ||
| Paraffin wax; PCM; thermal performance; Finite volume; Enthalpy Method | ||
| References | ||
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[1] L. Socaciu, A. Pleşa, P. Ungureşan and O. Giurgiu, “Review on phase change materials for building applications,” Leonardo Electronic Journal of Practices and Technologies 25, pp. 179-194, 2014. [2] K. A. R. Ismail and J. R. Henrıquez, “Parametric study on composite and PCM glass systems,” Energy conversion and management, 43.7, pp. 973-993, 2002 [3] F. Goia, M. Perino and V. Serra, “Improving thermal comfort conditions by means of PCM glazing systems,” Energy and Buildings 60, pp. 442-452, 2013. [4] B. L. Gowreesunker, S. B. Stankovic, S. A. Tassou and P. A. Kyriacou, “Experimental and numerical investigations of the optical and thermal aspects of a PCM-glazed unit,” Energy and Buildings, 61 pp. 239-249, 2013. [5] X. Jin, M. A. Medina and X. Zhang, “Numerical analysis for the optimal location of a thin PCM layer in frame walls,” Applied Thermal Engineering, 103, pp. 1057-1063, 2016. [6] T. Xie, Y. He and Z. Tong, “Analysis of insulation performance of multilayer thermal insulation doped with phase change material,” International Journal of Heat and Mass Transfer, 102, pp. 934-943, 2016 [7] K. El Omari, Y. L. Guer and P. Bruel, “Analysis of micro-dispersed PCM-composite boards behavior in a building's wall for different seasons,” Journal of Building Engineering, 7, pp. 361-371, 2016. [8] R. Fioretti, P. Principi and B. Copertaro, “A refrigerated container envelope with a PCM (Phase Change Material) layer: Experimental and theoretical investigation in a representative town in Central Italy,” Energy conversion and management, 122, pp. 131-141, 2016. [9] C. Liu, Y. Zhou, D. Li, F. Meng, Y. Zheng and X. Liu, “Numerical analysis on thermal performance of a PCM-filled double glazing roof,” Energy and Buildings, 125, pp. 267-275, 2016. [10] D. Li, Z. Li, Y. Zheng, C. Liu, A. K. Hussein and X. Liu, “Thermal performance of a PCM-filled double-glazing unit with different thermophysical parameters of PCM,” Solar Energy, 133, pp. 207-220, 2016. [11] S. Li, G. Sun, K. Zou and X. Zhang, “Experimental research on the dynamic thermal performance of a novel triple-pane building window filled with PCM,” Sustainable cities and society, 27, pp. 15-22, 2016. [12] H. Elarga, S. Fantucci, V. Serra, R. Zecchin and E. Benini, “Experimental and numerical analyses on thermal performance of different typologies of PCMs integrated in the roof space,” Energy and Buildings, 150, pp. 546-557, 2017. [13] L. Derradji, F. B. Errebai and M. Amara, “Effect of PCM in Improving the Thermal Comfort in Buildings,” Energy Procedia, 107, pp. 157-161, 2017 [14] M. I. Hasan, H. O. Basher and A. O. Shdhan, “Experimental investigation of phase change materials for insulation of residential buildings,” Sustainable cities and society, 36, pp. 42-58, 2018. [15] C. Liu, Y. Wu, J. Bian, D. Li and X. Liu, “Influence of PCM design parameters on thermal and optical performance of multi-layer glazed roof,” Applied energy, 212, pp. 151-161, 2018. [16] A. R. Abdulmunem and J. M. Jalil, “Indoor investigation and numerical analysis of PV cells temperature regulation using coupled PCM/Fins,” International Journal of Heat and Technology, Vol. 36, No 4, December, pp. 121-1222, 2018. [17] Y. Cao, A. Faghri and W. S. Chang, “A numerical analysis of Stefan problems for generalized multi-dimensional phase-change structures using the enthalpy transforming model,” International journal of heat and mass transfer, 32.7, pp. 1289-1298, 1989. [18] T. Norton, A. Delgado, E. Hogan, P. Grace and D. Sun, “Simulation of high pressure freezing processes by enthalpy method,” Journal of food engineering, 91(2), pp. 260-268, 2009. [19] S. H. Cho and J. E. Sunderland, “Heat-conduction problems with melting or freezing,” Journal of Heat Transfer, 91.3, pp. 421-426, 1969. [20] I. Dinçer, A. Midilli and H. Kucuk, eds, “Progress in Sustainable Energy Technologies,” Vol II: Creating Sustainable Development, Vol. 2. Springer, 2014 | ||
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