The invention relates to a method and a device for the thermal
physical property test of a high-temperature phase-change
energy storage material, belonging to the technical field of high-temperature phase-change
energy storage materials. Two kinds of
inorganic salts close to a eutectic point are adopted for inorganic salt mixture, are evenly mixed, are ground into
powder and are contained into a
nickel crucible. The
nickel crucible containing the inorganic salt mixture is placed in an iron box and is put into a box-type resistance furnace till the inorganic salt mixture is fully molten. After the inorganic salt mixture is molten, the
molten salt is taken out. The probe of a
thermocouple is inserted right into the middle of the
molten salt to enable the
molten salt to be cooled under natural conditions. The
nickel crucible is fixed in the iron box to test a heating curve. The heating curve is observed and the iron box is taken out after the mixed salt is fully molten and the temperature is 30 DEG C to 60 DEG C higher than the temperature of a melting platform. The
cooling curve of the mixed salt is tested under
room temperature. After the test is completed, data is stored and
data processing is conducted. The invention provides an effective means for the thermal
physical property test of the phase-change
energy storage material with wide temperature change range and high
melting point, overcomes the test defects of DSC and DTA, and has the advantages of small investment, low
raw material cost and easily obtainable raw materials, easy operation, good
repeatability and high applicability.