Are developed a algorithm and code to convert and transfer information between different databases of substances used in calculations of high-temperature processes. The algorithm includes: reading information of specie from the source database (IVTANTHERMO, THERMO, LEEDS, BURCAT); formation of the temperature dependencies of enthalpy and entropy in tabular form; correction table according to the dimensions and thermal scale of working base (TTI); approximation of table in polynomial form by Chebyshev method; error estimations of approximation and record store in the archive. Calculations showed that: there errors are minor; to determine punctually the approximation coefficients is necessary to use the double precision in code.
высокотемпературные процессы, индивидуальные вещества, база данных, аппроксимация, high-temperature processes, individual substances, data base, approximation
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