Abstract: An express method has been developed for calculating the explosion heat of cahbncod condensed explosives with
different oxygen balance from sharply negative to positive. The proposed method uses a minimal set of input data consisting of the
elemental composition, enthalpy density of the formations of the initial explosive and its detonation products. The calculation of the
heat of explosion is based on the correlation between the minimum and maximum heat of explosion with the density of a high-energy
compound. The article describes in detail the decomposition reactions of explosives for cases with minimum and maximum
explosion heats. Calculations of the heat of explosion according to the new method and the pepekin method are carried out according
to the explosives database presented in the article, and comparison results are also presented, which showed a better accuracy
(2.3 times) of the proposed method.
Index terms: heat of explosion, condensed explosives, elemental composition, enthalpy of formation, oxygen balance.