METHOD OF MEASURING HEAT PULSE Russian patent published in 2014 - IPC G01K17/00 

FIELD: measuring equipment.

SUBSTANCE: method of measuring the heat pulse is proposed, comprising location in the calorimeter cell of reaction vessel with the substance, initiation of thermal process under study after the establishment of a regular thermal regime in the calorimeter, measurement simultaneously with the initiation of the quantity of heat Q, released in the cell. Simultaneously with the initiation the integration of the heat flow is carried out, with its negative value upon reaching the regular thermal regime. The amount of heat is calculated by the formula: Q=Q₁+Q₂+Q₃, where: Q is total amount of heat emitted in the calorimeter cell; Q₁ is amount of heat is calculated by integrating the heat flow W_f from the time t₁ to t₂; Q₂ is the amount of heat calculated by integrating the heat flow W_f from the time t₂ to t₃; Q₃ is heat amount calculated by the formula Q₃=2Kƒ_tfW_fe^1/τdt, where K is calibration factor; T is time points of start of regularisation of heat flow W_f during heating of calorimetric vessel and during its cooling ; τ is the time constant of the calorimeter.

EFFECT: improved accuracy of calorimeter measurement.

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