Thermal Energy Storage System of Sulfate / Fiber Matrix Composite


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The K2SO4-Na2SO4 system was studied by differential scanning calorimetry (DSC) with the aim of developing a new phase-change thermal energy storage material. The temperature range of phase change is from 800°C to 1069°C according to the phase diagram. A new shape-stabilized phase-change material made of molten salts impregnated by capillary forces in a porous-fiber matrix was presented. These materials were characterized by X-ray diffraction analysis and differential scanning calorimetry analysis. The results indicated that the compound included 70~80% of molten salts, meanwhile the heat storage material could keep its shape without any leakage during the heating process.



Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong




X. T. Ren et al., "Thermal Energy Storage System of Sulfate / Fiber Matrix Composite", Key Engineering Materials, Vols. 368-372, pp. 1077-1079, 2008

Online since:

February 2008




[1] J.J. Tomlinson, D.L. Kannberg: J. Mech. Eng. 9 (1990), p.68.

[2] M. Mohammed, A. Farid, M. Amar, et al.: J. Mater. App. Ener. Conver. Manag. Vol. 45(2004), p.1597.

[3] N. Nallusamy, S. Sampath and R. Velraj: J. Zhej Unive Sci A. Vol. 7.

[8] 2006), p.1422.

[4] A. Minevich,Y. Marcus and L . Ben-Dor: J. Chem. Eng. Data. Vol. 49.

[5] 2004), p.1451.

[5] S.L. Wang, H. Wang, X.J. Qi, et al.: Acta Scif Natur Universitatis Sun. Vol. 44(Suppl. 2) (2005), p.7.

[6] E. Korin, L. Soifer: J. Therm. Ana. Vol. 50(1997), p.347.

[7] M.H. Luo. PH. D: Thesis(South China University of Technology, Guangzhou, Ghina, 2003).

[8] Information on http: /www. crct. polymtl. ca. Fig-7 the phase diagram of K2SO4-Na2SO4 systems 0 10 20 30 40 50 60 70 80 90 ( b) ( a) a: fiber ceramic b: Na2SO4-ceramic PCM mullite Na2SO4 2?/ ° Fig. 8 X-ray diffraction patterns of composite PCM and porous fiber ceramic treated at 1000°C.