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Mathematical model of the calorimetric system is built. A direct problem of calorimetry is formulated with investigating it for correctness. An integrate-interpolation method is used to construct a finite-difference scheme for a system of differential equations of a mathematical model of a calorimetric system to solve a direct problem of calorimetry, given that the capsule and the outer cylinder are built of different materials. Software implementation of the numerical method and conduct numerical experiments is induced for the direct problem in order to study the influence of the parameters of the calorimetric system on the solution of the problem.

parameters of calorimetric system; direct calorimetry problem; finite-difference scheme