Study on Modification of Hitec Molten Salt and its Properties Tests

Abstract:

In this paper, additive A and additive B were added into Hitec molten salts in order to optimize the properties of the molten salt. The melting point, latent heat of phase transformation, specific heat capacity, thermal gravity, and thermal stability of the modified Hitec molten salt was characterized. The results showed that compare to Hitec molten salt the modified Hitec molten salt showed low melting point, proper latent heat of phase transformation, greater heat of fusion, wide using temperature range and other advantages. The modified molten salt had good thermal properties and thermal stability. This modified Hitec molten salt has good application prospect in the aspect of high temperature heat storage/transfer.

• Periodical: Advanced Materials Research (Volumes 1073-1076)
• Pages: 66-72
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1073-1076.66
• Online since: December 2014
• Authors: Wei Zhai*, Guang Ming Liu, Fei Yu, Yuan Kui Wang
• Keywords: Additive, Modified Hitec Molten Salts, Nitrate Molten Salt, Properties

References

[1] Yang Qiang Peng, Xiaolan Wei, Jing Ding, et al. High-temperature thermal stability of molten salt materials. International Journal of Energy Research, 2008, 32(12): 1164-1174.

DOI: 10.1002/er.1453

[2] Johnson Winford B, Nagle Wesley M. Circulating HTS as a Pilot Plant Heat Transfer Medium. Industrial & Engineering Chemistry, 1947, 39(8): 971-974.

DOI: 10.1021/ie50452a010

[3] Mills David. Advances in solar thermal electricity technology. Solar energy, 2004, 76(1): 19-31.

DOI: 10.1016/s0038-092x(03)00102-6

[4] Kamimoto Masayuki, Tanaka Tadayoshi, Tani Tatsuo, et al. Investigation of nitrate salts for solar latent heat storage. Solar Energy, 1980, 24(6): 581-587.

DOI: 10.1016/0038-092x(80)90357-6

[5] Oró E, Gracia A, Castell A, Farid MM, Cabeza LF. Review on phase changematerials (PCMs) for cold thermal energy storage applications. Apply Energy 2012; 99: 513–33.

DOI: 10.1016/j.apenergy.2012.03.058

[6] Raade J. W, Padowitz D. Development of molten salt heat transfer fluid with low melting point and high thermal stability. Transactions of the ASME-N-Journal of Solar Energy Engineering, 2011, 133 (3): 031013.

DOI: 10.1115/1.4004243

[7] Wang Tao, Mantha Divakar, Reddy Ramana G. Novel low melting point quaternary eutectic system for solar thermal energy storage. Applied Energy, 2013, 102: 1422-1429.

DOI: 10.1016/j.apenergy.2012.09.001

[8] Peng Qiang, Ding Jing, Wei Xiaolan, et al. The preparation and properties of multi-component molten salts. Applied Energy, 2010, 87(9): 2812-2817.

DOI: 10.1016/j.apenergy.2009.06.022

[9] ChengHu Chang, Yan Chen. analysis of molten salt carrier overheating. World Nonferrous Metals, 2000, 8: 21-23.

[10] Kearney D, Herrmann U, Nava P, et al. Assessment of a molten salt heat transfer fluid in a parabolic trough solar field. Journal of solar energy engineering, 2003, 125(2): 170-176.

DOI: 10.1115/1.1565087

[11] Brosseau Doug, Kelton John W, Ray Daniel, et al. Testing of thermocline filler materials and molten-salt heat transfer fluids for thermal energy storage systems in parabolic trough power plants. Journal of solar energy engineering, 2005, 127(1): 109-116.

DOI: 10.1115/1.1824107

[12] Reg. U. S, Pat. &Tm. Off. HITE heat transfer salt. Brenntag Company, 1-10.

[13] Petersen GF, Ewing WA, Smith GP. Densities of some salt mixtures. Chem Eng Data 1961; 6(4): 540.

DOI: 10.1021/je60011a018

[14] Nasch PM, Steinmann SG. Density and thermal expansion of molten manganese, iron, nickel, copper, aluminum and tin by means of the gamma-ray attenuation technique. Phys Chem Liq 1995; 29: 43-58.

DOI: 10.1080/00319109508030263