Thermal Conductivity Enhancement of LiNO3/graphite Composite for Energy Storage
OPEN ACCESS
This paper deals with the analysis of a LiNo3/ graphite composite for thermal storage at high temperature. In such a composite, the salt (LiNo3) serves as a latent heat storage material and the graphite has been used to enhance the thermal conductivity of the salts. The elaboration method consists of a cold uni-axial compression of a physical mixing of salts powder and graphite particles.
The thermal conductivity of the LiNo3/ graphite composites with different mass fraction of graphite was measured using transient hot wire technique. Also, the influence of the moisture content on the measurement was studied.
[1] R. Pitz-Paal, J. Dersch, B. Milow, ECOSTAR Roadmap Document. DLR, Germany, SES6-CT-2003-502578, 2005.
[2] S.D. Sharma, latent heat storage materials and systems: a review, International Jornal of Green Energy,vol.2, pp. 1-56, 2005.
[3] Jennifer Carrasco Portaspana, High temperature thermal energy storage systems based on latent and thermo-chemical heat storage, Faculty of Mechanical and Industrial Engineering, MASTER THESIS, Vienna, 2011.
[4] M. M. Farid, A. M. Khudhair, SAK. Razack , S. Al-Hallaj, A review on phase change energy storage materials and applications. Energy Convers Manage, vol.45, pp.1597–1615, 2004.
[5] L. Xia, P. Zhang, R.Z. Wang, Preparation and thermal charaterization of expanded graphite/paraffin composites phase change material, Carbon, vol. 48, pp. 2538-2548, 2010.
[6] S. Pincemina, R. Olivesa, X. Pya, M. Christ. Highly conductive composites made of phase change materials and graphite for thermal storage. Solar Energy Materials & Solar Cells 92 (2008) 603–613.
[7] P.A. Prabhu and al, Review of Phase Change Materials For Thermal Energy Storage Applications, Int J Eng Research and Applications, Vol.2, pp. 871-875, 2012.
[8] A. Sharma, V. V. Tyagi, C. R. Chen, D. Buddhi, Review on thermal energy storage with phase change materials and applications. Renewable and Sustainable Energy Reviews, vol. 13, pp. 318–345, 2009.
[9] S. M. Hasnain, Review on sustainable thermal energy storage technologies. Part I: heat storage materials and techniques. Energy Convers Manage, vol. 39 (11), pp. 1127–1138, 1998.
[10] A. TAYEB, Use of some industrial wastes as energy storage media, Energy Conversion and Management, Vol 37, n°2, pp 127-133, 1996.
[11] J. FUKAI et al, Thermal conductivity enhancement of energy storage media using carbon fibers, Energy Conversion and Management, Vol 41, pp 1543-1556, 2000.
[12] F. FRUSTERI et al, thermal conductivity measurement of PCM based storage system containing carbon fibres, Applied thermal engineering vol. 25, pp1623-1633, 2005.
[13] O. Mesalhy, K. Lafdi, A Elgafy. Carbon foam matrices saturated with PCM for thermal protection purpose. Carbon vol. 44, pp 2080–8, 2006.
[14] J.A. Weaver, R. Viskanta, Melting of frozen, porous media contained in a horizontal or a vertical, cylindrical capsule, Int. J. Heat Mass Transfer, vol.29, pp. 1943–1951, 1986.
[15] J.P. Bédécarrats, F. Strub, B. Falcon, J.P. Dumas, Phasechange thermal energy storage using spherical capsules: performance of a test plant, Int. J. Refrig. Vol. 19 (3) pp. 187–196, 1996.
[16] M. Xiao, B. Feng, K.Gong, Thermal performance of a high conductive shape- stabilized thermal storage material. Solar Energy Mater. Solar Cells, vol.69 pp. 293-296, 2001.
[17] M. Xiao, B. Feng, K.Gong, Preparation and performance of shape stabilized phase change thermal storage materials with high conductivity. Energy Convers. Manage, vol. 43 103-108, 2002.
[18] X.Py, R.Olives, S.Mauran, Paraffin/porous-graphite composite as a high and constant power thermal storage material.Int.J.HeatMassTransfer, vol. 44, pp. 2727-2737, 2001.
[19] A. Sarı , A. Karaipekli, Thermal conductivity and latent heat thermal energy storage characteristics of paraffin/expande graphite composite as phase change material. Appl. Therm. Eng, Vol. 27, pp. 1271–1277, 2007.
[20] A.Mills, M.Farid, J.R.Selman, S.Al-Hallaj, Thermal conductivity enhancement of phase change materials using a graphite matrix. Appl. Therm.Eng, vol. 26, pp.1652-1661, 2006.15
[21] H.S. Carslaw, J.C. Jaeger, Conduction of Heat in Solids, Cladendon Press, Oxford, 1959.
[22] Z.Y. Liu, G. Cacciola, G. Restuccia, N. Giordano, Fast simple and accurate measurement of zeolite thermal conductivity, Zeolites 10 (July–August) 565, 1990.
[23] M. M. Kenisarin, High-Temperature phase change materials for thermal energy storage. Renewable and sustainable Energy Reviews, vol. 14, pp. 955-970, 2010.
[24] Z. Acem, J. Lopez, E. Palomo. Del Barrio, KNO3/NaNO3- Graphite materials for thermal energy storage at high temperature: PartI. - Elaboration methods and thermal properties. Appl. Therm. Eng, vol 30 , pp. 1580-1585,2010.