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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

DEVELOPMENT AND EXPERIMENTAL STUDY OF QUATERNARY NITRATES WITH LOW MELTING POINT AND HIGH DECOMPOSITION TEMPERATURE

Get access (open in a dialog) DOI: 10.1615/IHTC16.mtr.023719
pages 5849-5857

Sinopsis

In order to obtain molten salt with lower melting point, high decomposition point and better thermal stability, 8 kinds of mixed molten salts are obtained by adjusting the component ratio and adding additives into HITEC salt. A formula with low melting point and high decomposition point has been exploited and its primary thermo-physical properties were presented here. The melting point and the decomposition point were determined to be 84 °C and 628.2 °C, further the specific heat, density, thermal conductivity were determined respectively. Sensible thermal storage cost of this mixture was found to be lower than that of conventional solar salt andH ITEC salt. Further experimental analysis of the long-term thermal stability (565 °C) and heating-cooling cyclic thermal stability (200-500 °C) was carried out. Therefore, this new kind of molten salt not only can reduce the risk of pipe clogging and the cost of system antifreeze, but also has perfect thermal stability, has the potential for use as a heat transfer and thermal storage material in solar thermal power plants and nuclear power plants.