Engineering Physics Annotation << Back A METHOD FOR SEARCHING FOR FAILURES OF A COMPLEX ENERGY SYSTEM BASED ON THE RESULTS OF CONTROL OF TECHNICAL CONDITION PARAMETERS V.I. KRUGLOV, I.I. SHARIPOV, A.А. MUTIGULLIN The content of the article is devoted to the construction of a diagnostic model for searching for a failed element of a thermophysical system. Improvement, complication of modern technical facilities, increased competition require solutions as one of the problems of improving the organization of their operation. At the same time, an important role is played by the assessment of the technical condition and the diagnosis of operational failures. The article presents a brief analysis of existing approaches to the construction of diagnostic models and models for assessing the current technical condition of the object under study (static and dynamic). Assuming that the state of the object does not change after the failure, preference was given to static models. In these models, there is no need to take into account changes in the parameters of the technical condition during operation. Nevertheless, taking into account a priori information before the failure of the object is very useful when diagnosing. The analysis of the existing static diagnostic models allowed us to assume that the most universal, visual and convenient for algorithmization are functional-logical graph models (FLGM). Nevertheless, FLGMS are not without a number of signifi cant drawbacks. The article presents an approach to the construction of an improved FLGM. The FLGM of a real object is constructed, an example of determining the search area of a failed element is shown. Keywords: diagnostic models, thermophysical systems, technical condition parameters. DOI: 10.25791/infizik.6.2022.1269 Pp. 07-14.