Application of Active Thermography for  Defectoscopy  of Technological Equipment on Objects of the Nuclear  Power Plants

Bazaleev, N.I.; Lytvynenko, V.V.

doi:10.46813/2019-123-179

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…Apart from what we call passive thermography, there is an active one that is also used. It is a method that stimulates the subject of research, e.g., by providing a thermal impulse [30], or obtains this effect by means of acoustic activation [31]. It includes ultrasound [32] or microwaves [33].…”

Section: Introductionmentioning

confidence: 99%

The Thermographic Analysis of the Agglomeration Process in the Roller Press of Pillow-Shaped Briquettes

Uhryński

Bembenek

2022

Materials

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When the briquetting process of fine-grained material takes place in the roller press unit, the pressure reached is over a hundred megapascals. This parameter is a result, among other factors, of the geometry of a compaction unit and also the properties of the consolidated material. The pressure of the unit is not constant and the changes in value depend on a given place on the molding surface. By the process of generating different types of pressure on the surface of briquettes, their compaction is different as well. The distribution of temperature on the surface of the briquettes may determine the pressure used locally on them. Nevertheless, the distribution of stress in the briquetting material is still a subject of scientific study. However, it is known that the pressure exerted on the briquette is different for different compaction systems. The article includes authors’ further thermography studies on the classical pillow-shaped briquetting process (instead of the saddle-shaped ones that were previously conducted) of four materials (calcium hydroxide and water mixture, mill scale, charcoal fines and starch mixture, as well as a mixture of EAFD, scale, fine coke breeze, molasses, and calcium hydroxide). Immediately after the briquettes left the compaction zone, thermal images were taken of them, as well as forming rollers. Thermograms that were obtained and the variability of temperature at characteristic points of the surface of pillow-shaped briquettes were analyzed. They showed differences in temperature on the surface of briquettes. In all four cases, the highest briquette temperatures were recorded in their upper part, which proves their better densification in this part. The temperature differences between the lower and upper part of the briquettes ranged from 1.8 to 9.7 °C, depending on the mixture.

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Section: Introductionmentioning

confidence: 99%

The Thermographic Analysis of the Agglomeration Process in the Roller Press of Pillow-Shaped Briquettes

Uhryński

Bembenek

2022

Materials

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Information and Measuring Tools for Express Assessment of Environmental Damage From Military Aggression of the Russian Federation

Bandurian

Kovalevskyj²,

Koloskov

et al. 2023

Technogenic and Ecological Safety

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The presented work improves the potential method of assessing the state of security in the direction of assessing damage to the ecological system as a result of military aggression. It is expedient to assess damages from the military aggression of the russian federation as the sum of three components: the cost of damage as a result of the destruction of Ukraine's overall potential; costs for restoring the aggregate potential to the level of the country's projected development in peacetime conditions; component of compensation for the damage caused, which was not detected at the time of the evaluation of the first two components. For the practical implementation of the improved potential method of assessing damage to the ecological system of Ukraine from the military aggression of the russian federation, it is proposed to use as an instrumental basis the measurement of the distribution of infrared radiation with the use of spectrometric analysis. It is shown that the use of such an approach allows finding pollutants under a layer of clean soil by radiation in the infrared range. This allows you to determine the limits of pollution without taking samples and to limit yourself to the minimum number of samples exclusively in the places of clarification of pollution parameters. The specified method can also be used to determine the potential for accelerating soil erosion as a result of military operations.

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Application of Active Thermography for Defectoscopy of Technological Equipment on Objects of the Nuclear Power Plants

Cited by 2 publications

References 3 publications

The Thermographic Analysis of the Agglomeration Process in the Roller Press of Pillow-Shaped Briquettes

The Thermographic Analysis of the Agglomeration Process in the Roller Press of Pillow-Shaped Briquettes

Information and Measuring Tools for Express Assessment of Environmental Damage From Military Aggression of the Russian Federation

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