Influence of technical condition parameters on the residual resource of capacitive equipment

Kulakov, P. A.; Рубцов, А. В.; Afanasenko, V. G.; Zubkova, O. E.; Sharipova, R. R.; Gudnikova, A. A.

doi:10.1088/1742-6596/1399/5/055052

Cited by 19 publications

(4 citation statements)

References 5 publications

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“…An assessment of the life cycle of a geothermal power plant in Iceland was performed in [29]. Geothermal power plants of the country provide about 25% of electricity and almost all heat supply.…”

Section: Methods Of Assessing the Residual Resource Using Regulatory ...mentioning

confidence: 99%

Structuring of the Main Directions of Research Regarding the Determination of the Remaining Resource of Transport Structures and Buildings

ШАРКО,

ЯНЕНКО

2024

Automash

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An analysis of the current state of developments regarding the determination of the residual resource of transport structures and facilities, which are operated in the conditions of long-term practice, uncertainty and risk in the adoption of final conclusions, is given. It has been established that the strategy for the development of technical diagnostics requires the exclusion of dependence on the human factor and subjective observation of changes in the physical, mechanical and operational properties of controlled objects for intellectual operations of determining the remaining resource associated with the collection, processing and analysis of diagnostic information. Analysis of the use of methods of non-destructive testing and flaw detection to assess the residual resource of transport structures and ratios showed the limitations of these methods of determining defects in the early stages of their development, which precede the state of degradation of the material, optimization of processes and technologies to ensure timely diagnosis and forecasting of the technical condition of structures. The current state of developments regarding the determination of the residual resource of transport structures and structures operated under conditions of complex dynamic loads is considered. The structuring of the main directions of research was carried out and the gradation of the main used methods of residual resource assessment was proposed based on the results of numerical methods of fracture mechanics, based on the results of non-destructive testing and defectoscopy, using normative documents and standards of modeling and information support. The essence, methodology of dignity and shortcomings of the used methods are highlighted. Purpose, scope of application, prospects of their further use in transport technologies are determined. Keywords: diagnosis, calculation methods, mechanical properties, technical diagnosis, assessment methods.

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Section: Methods Of Assessing the Residual Resource Using Regulatory ...mentioning

confidence: 99%

Structuring of the Main Directions of Research Regarding the Determination of the Remaining Resource of Transport Structures and Buildings

ШАРКО,

ЯНЕНКО

2024

Automash

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“…Поэтому проведение оптимизационных расчетов на основании математического описания теплового и гидравлического режимов в каналах теплообменного аппарата имеет множество допущений, что снижает степень валидатности расчетной модели 1 [22].…”

Section: Financingunclassified

“…Известия Юго-Западного государственного университета / Proceedings of the Southwest State University. 2022; 26(4):[22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] …”

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Thermal Condition in the Channels of Plate Heat Exchangers

Elistratova

Seminenko

Uvarov

2023

Proceedings of the SWSU

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Equipping heat points with plate-type heat exchangers is an integral structural element of the 3rd generation heat and power network and a component of the reliability of the heat supply system as a whole. It has been established that the optimization calculations of heat exchangers of this type are difficult due to the absence of dependences on heat transfer and hydraulic resistance between the channels in the structural space of the heat exchanger.Purpose of research. To clarify the method of calculating plate heat exchangers, excluding the equality of thermal and hydraulic conditions from the generally accepted assumptions.Methods. The research methodology is based on the use of the law of conservation of mass in order to determine the temperature parameters of working fluids in each channel. The solution of this problem is proposed in the form of a system of equations, each of the equations of which characterizes the thermal balance of the channel under consideration. A computer model of the heat exchanger is constructed in order to conduct a numerical study of the thermal regime of the heat exchanger.Results. It is indicated that as an assumption in the well-known mathematical model for calculating the thermal regime of a plate-type heat exchanger, the condition of equal distribution of fluid flows between channels is accepted. This restriction leads to equalization of liquid temperatures in each channel. Taking into account the geometric arrangement of the channels, the excess of the final temperature of the heating and heated coolant in the first and last channels with respect to known data is up to 10%. The results of the study confirm the hypothesis of uneven heating of the coolant along the length of the plate package due to the uneven flow distribution between the channels.Conclusion. The results of analytical calculation and modeling in the SolidWorks environment of the temperature regime in the channels of a plate-type heat exchanger indicate a significant influence of the geometric arrangement on the thermal regime in the channels. The formulated provisions of the mathematical description of the unevenness of the thermal regime of heat exchange channels, taking into account the location of the plates, are recommended to be used when improving the design parameters of plate-type heat exchangers.

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“…In such cases, even a scratch of small sizes can significantly change the SDS of the element, thereby determining the reliability of the entire apparatus as a whole [5][6][7][8]. Therefore, the actual work is the assessment of the SDS of the flat manhole cover depending on the length and location of the scratch on it at different angles relative to the vertical axis of symmetry of the cover under the influence of technological workloads [9][10].…”

Section: Introductionmentioning

confidence: 99%

Stress-Deformed Condition at Different Angle of Scratch Inclination on Flat Cover of Hatch-Blade

et al. 2021

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Defects of mechanical origin are quite often found on the structural elements of the devices of the production facilities of the fuel and energy complex. One of the most common mechanical defects is scratches and hairlines on the outer surface of the structural elements. The current regulatory and technical documentation establishes standards for the rejection of defects of various types, which provide for the decommissioning of objects with unacceptable defects for repair or subsequent dismantling. However, in most cases, mechanical defects such as scratches are within acceptable sizes and do not have a decisive effect on the life, reliability and safe operation of vessels and apparatus. However, the presence of such defects can change the stress-strain state of the object to a more unfavorable side, and therefore accelerate the process of accumulating damage at points of concentration of increased stresses. Subsequently, places with a concentration of increased voltages under certain operating conditions can be sources of premature destruction of the element and failure of the object as a whole. Therefore, the actual work is the simulation of the stress-strain state of the flat manhole cover with a scratch, having a different arrangement. In this work, the stress-strain state of the flat manhole cover is examined depending on the location of the scratch on it at a different angle relative to the vertical axis of symmetry of the cover.

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Influence of technical condition parameters on the residual resource of capacitive equipment

Cited by 19 publications

References 5 publications

Structuring of the Main Directions of Research Regarding the Determination of the Remaining Resource of Transport Structures and Buildings

Structuring of the Main Directions of Research Regarding the Determination of the Remaining Resource of Transport Structures and Buildings

Thermal Condition in the Channels of Plate Heat Exchangers

Stress-Deformed Condition at Different Angle of Scratch Inclination on Flat Cover of Hatch-Blade

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