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Transactions of the Indian Institute of Metals

, Volume 71, Issue 11, pp 2677–2680 | Cite as

Assessment of Solidification Parameters of Salts and Metals for Thermal Energy Storage Applications Using IHCP-Energy Balance Combined Technique

  • Swati Agarwala
  • K. Narayan Prabhu
Technical Paper

Abstract

Solar energy storage technologies have proved to be promising in terms of providing uninterrupted power supply. The phase change materials (PCMs) with their higher heat storage capacity are more efficient than sensible heat storage materials. In this study, a new method for thermal analysis of PCM salts was proposed. The method was based on the estimation of heat flux at the mold–salt interface using solution to inverse heat conduction problem and characterizing the salt using a simplified energy balance method. It was advantageous over other computer-aided cooling curve analysis methods as it eliminated the use of curve fitting approach involved in baseline calculations. KNO3 and NaNO3 salts were used to validate this method. The solidification parameters like cooling rate, liquidus and solidus temperatures, solidification time and latent heat were assessed. The results of the analysis were in agreement with the data reported in the literature.

Keywords

Energy storage Thermal analysis Solidification Inverse technique Energy balance 

References

  1. 1.
    Zalba B, Marin J M, Cabeza L F, and Mehling H, Appl Therm Eng 23 (2003) 251.CrossRefGoogle Scholar
  2. 2.
    Mehling H, and Cabeza L F, Heat and cold storage with PCM: An up to date introduction into basics and applications, Springer 2008 ed., Heat Mass Transfer (2008) 57.Google Scholar
  3. 3.
    Yinping Z, Yi J, and Yi J, Meas Sci Technol 10 (1998) 201.CrossRefGoogle Scholar
  4. 4.
    Sudheer R, and Prabhu K N, Mater Sci Forum 830–831 (2015) 505.CrossRefGoogle Scholar
  5. 5.
    Sudheer R, and Prabhu K N, Mater Des 95 (2016) 198.CrossRefGoogle Scholar
  6. 6.
    Tooklang P, Vaivudh S, Sukchai S, and Rakwichian W, Energy Power Eng 6 (2014) 174.CrossRefGoogle Scholar
  7. 7.
    Zhao CY, Ji Y, and Xu Z, Sol Energy Mater Sol Cells 140 (2015) 281.CrossRefGoogle Scholar

Copyright information

© The Indian Institute of Metals - IIM 2018

Authors and Affiliations

  1. 1.Department of Metallurgical and Materials EngineeringNational Institute of Technology KarnatakaSurathkalIndia

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