The analysis of thermal state of catalytic converter depending on fuel supply and engine load using thermo-vision

Worsztynowicz, B.; Uhryński, A.; Borkowski, B.; Pluta, Marek

doi:10.19206/ce-2017-305

Cited by 5 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has also been mentioned that the use of thermography occurs in the diagnosis of the welding process and the assessment of the quality of these joints [9,10]. Thermography is used in the widely understood diagnostics of machines and their components, starting from CNC (Computer Numerical Control) machine tools [11], through mechanical expanders [12], rotating machines [13], belt conveyors [14], internal combustion engines (catalytic reactors) [15,16], bearings and bearing nodes [17,18], brakes [19], up to electrical devices and machines [20][21][22][23]. Attempts have been made to correlate strength tests and stresses in the material with the amount of heat generated [24].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Temperature Distribution on the Surface of Saddle-Shaped Briquettes Consolidated in the Roller Press

Bembenek

Uhryński

2021

Materials

Self Cite

View full text Add to dashboard Cite

The unit pressure in the fine-grained material consolidation process in the roller press can reach over hundred MPa and is a parameter which results, among other things, from the properties of the consolidated material and the compaction unit geometry. Its value changes depending on the place on the molding surface. Generating different pressure on the surface of briquettes makes their compaction different. One’s own and other researchers’ experience shows that, in the case of exerting high pressure on the merged fine-grained material, the higher unit pressure exerted on the material, the higher temperature of the consolidated material is. The temperature distribution on the surface of the briquettes can testify the locally exerted pressure on the briquette. The stress distribution in the briquetting material is still a subject of research. The article includes thermography studies of the briquetting process of four material mixtures. Thermal images of briquettes were taken immediately after they left the compaction zone as well as forming rollers. The obtained thermograms and temperature variability at characteristic points of the surface of briquettes were analyzed. The correlation between the temperature distribution and the stress distribution in the briquettes was determined.

show abstract

Section: Introductionmentioning

confidence: 99%

Analysis of the Temperature Distribution on the Surface of Saddle-Shaped Briquettes Consolidated in the Roller Press

Bembenek

Uhryński

2021

Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…It should be noted that bolometric cameras are most often used due to the widest range of recorded infrared wavelengths [6,18]. These types of cameras are used in construction, the power industry or testing machines, and internal combustion engines, as presented in [16,19].…”

Section: Introductionmentioning

confidence: 99%

Thermal imaging of the disc brake and drive train in an electric locomotive in field conditions

Sawczuk,

Cañás,

Kołodziejski

2023

Combustion Engines

View full text Add to dashboard Cite

The article presents the results of thermovision tests of the disc brake and the drive system components located in its vicinity on the 111Ed electric locomotive in field conditions. For the mentioned vehicle, the research methodology was developed and the temperature distribution of the brake disc and components and assemblies located in its vicinity during braking was measured. In the article, special attention was paid to the configuration of the thermal imaging camera to the real conditions occurring during the test. This is important because due to the rotating brake disc, it is difficult to verify the temperature value with another contact measuring device. In exceptional situations, temperature measurement using thermocouples is used, but it requires an extensive additional measurement system and signal recording, which is more expensive. Although the thermal imaging camera measures the temperature indirectly, the correct configuration of the camera settings to the real conditions may affect the measurement error by several percent.

show abstract

“…The use of thermography to diagnose the welding process and to estimate the quality of these connections have also been mentioned [10,11]. Secondly, thermography is used in the widely understood diagnostics of machines and their components, such as CNC machine tools [12], through mechanical spreaders [13], rotating machines [14], belt conveyors [15], internal combustion engines (catalytic reactors) [16,17], bearings (temperature measurement of moving rolling elements, and one must keep in mind that baskets in bearings may be measured only with contactless methods) and bearing nodes [18,19], brakes [20], as well as electrical devices and machines [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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

Uhryński

Bembenek

2022

Materials

Self Cite

View full text Add to dashboard Cite

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.

show abstract

The analysis of thermal state of catalytic converter depending on fuel supply and engine load using thermo-vision

Cited by 5 publications

References 4 publications

Analysis of the Temperature Distribution on the Surface of Saddle-Shaped Briquettes Consolidated in the Roller Press

Analysis of the Temperature Distribution on the Surface of Saddle-Shaped Briquettes Consolidated in the Roller Press

Thermal imaging of the disc brake and drive train in an electric locomotive in field conditions

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

Contact Info

Product

Resources

About