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• W4385671303 abstract "The heat engineering equipment of thermal power plants has been studied from the standpoint of modern thermometry. It has been established that thermometry dominates in the metrological support of the energy industry and occupies up to 50% of the total number of measuring instruments. Existent continuous thermal control of TPP boilers has been studied. It has been established that only the low-temperature part of the boiler units is controlled by instrumentation. In this case, the high-temperature part remains uncontrolled. The lack of high-temperature control causes increased fuel consumption, increase the number of emergency shutdowns of boiler units due to screen pipes destruction and tapholes slagging, as well as a decrease in the service life of the burners. Existent thermoelectric temperature control is characterized by additional errors associated with the drift of the transducers nominal static characteristics, imperfect thermal contact between transducer and object, as well as complicates the operation of boiler units. To organize continuous thermal control of the high-temperature part of boiler units, innovative technologies of optical thermometry are proposed. The technologies provide optical contact on closed objects, exclude the influence of accompanying and special intermediate media and emissivity on the results of temperature measurements. To eliminate the influence of these factors on the measurement results, light-guide methods, methods for eliminating the influence of special and accompanying intermediate media, as well as spectral two-color compensative thermometry and based on the nonlinearity equation linear, dual-range and parabolic methods have been developed. Under the same conditions, methodical errors of two-color compensative thermometry with corrected adjustment by linear and parabolic methods are respectively in 6…16 and 7…20 times lower than errors of classical radiation pyrometry. The errors of the two-range method are at the level of errors of reference measurements. Based on modern microspectrometers (Ocean Optics, USA), as well as using modern materials, fiber-optic and computer technologies, the basic spectral thermometric system has been developed. The system implements new technologies of spectral thermometry. Using the presented developments, a system of integrated control of the high-temperature part of the TPP boiler units has been created. The system provides continuous control, registration, indication and regulation of the temperature of the torch, burners, the inner surface of the screen pipes lining, flue gases in the convective part of the boiler unit and slag. Only by reducing fuel consumption (by 7–10% per year), the integrated control system pays off within a year." @default.
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• W4385671303 date "2023-01-01" @default.
• W4385671303 modified "2023-10-16" @default.
• W4385671303 title "Innovative Technologies for Continuous Thermal Control of TPPs Boilers" @default.
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• W4385671303 doi "https://doi.org/10.1007/978-3-031-35088-7_16" @default.
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