Leakage quantification of compressed air on pipes using thermovision

Dudić, Slobodan; Ignjatović, Ivana; Šešlija, Dragan; Blagojević, Vladislav; Stojiljković, Miodrag

doi:10.2298/tsci120503191d

Cited by 19 publications

(14 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Video thermography techniques have actual and different interests in applications [5][6][7][8][9][10][11]. In our study, thermography is used to confirm the effectiveness of body cooling materials and experimental results obtained by medical acquisition devices.…”

Section: Introductionmentioning

confidence: 97%

Efficacy of a novel phase change material for microclimate body cooling

et al. 2014

View full text Add to dashboard Cite

The present study was conducted in order to evaluate the efficiency of personal body microclimate cooling systems based on a phase change materials and its effects on physiological strain in soldiers during exertional heat stress in hot environment. The results are obtained in the experiment conducted in the climatic chamber in the Institute of Hygiene, Military Medical Academy in Belgrade. Ten male soldiers were voluntarily subjected to exertional heat stress tests consisted of walking on treadmill (5.5 km/h) in hot conditions (40°C) in climatic chamber. The subjects performed first test while wearing a field camouflage uniform without any cooling system (CONTROL group) and in second test they used additional microclimate cooling system with paraffin wax consist of n-hexadecane (C 16 H 34 ), in a form of cooling packs (COOL group). As indicators of thermal strain, mean skin (T sk ) and tympanic (T ty ) temperature were determined. Simultaneously, thermal effects of phase change materials were measured by thermal imaging camera. The exercise in hot conditions induced a physiological response to heat stress, manifested through increased body core and skin temperatures. The results confirmed that the cooling vest worn over the field uniform was able to attenuate the physiological strain during exercise, compared to the identical exposure in the "control" group. The results of thermal imaging also indicate that heat generated inside the body is the main factor that will affect the phase change material melting time.

show abstract

Section: Introductionmentioning

confidence: 97%

Efficacy of a novel phase change material for microclimate body cooling

et al. 2014

View full text Add to dashboard Cite

show abstract

“…A novel air leak diagnosis and localization method based on IR thermography is described in papers. [19][20][21] IR technology uses thermovision cameras to display and measure thermal energy radiated by an object. Those cameras allow a very accurate noncontact temperature measurement ( Figure 3).…”

Section: Detection Methodsmentioning

confidence: 99%

Test of measurement device for the estimation of leakage flow rate in pneumatic pipeline systems

Dindorf

Woś

2018

Measurement and Control

View full text Add to dashboard Cite

Background: Indirect measurements of flow rate serve to determine air consumption, leakage values and characteristics of compressed air systems (CASs). Method: A new method of indirect flow rate measurement in a pneumatic pipeline system was developed. The method enables to measure the controlled leakage in a branch line and was used to construct automatic measuring systems auditing the compressed air systems piping. Results: First, the leak-testing instrument LT-I 200 was designed, constructed, and tested as portable measurement device for the estimation of air leakage flow rate in pneumatic pipeline system. Next, based on the authors' patent, the automatic measuring system for the measurement of the leakage flow rate in industrial compressed air piping was developed. Conclusion: The measurement device was used to estimate of the leakage flow rate and cost of the energy losses in the compressed air piping system.

show abstract

“…When viewed through a thermal imaging camera, warm objects stand out well against cooler backgrounds [14]; humans and other warm-blooded animals become easily visible against the environment, day or night. Since infrared radiation is emitted by all objects above absolute zero according to the black body radiation law, thermography makes it possible to see one's environment with or without visible illumination.…”

Section: Thermal Image Informationmentioning

confidence: 99%

Intelligent optimal control of thermal vision-based Person-Following Robot Platform

et al. 2014

View full text Add to dashboard Cite

In this paper the supervisory control of the Person-Following Robot Platform is presented. The main part of the high level control loop of mobile robot platform is a real-time robust algorithm for human detection and tracking. The main goal was to enable mobile robot platform to recognize the person in indoor environment, and to localize it with accuracy high enough to allow adequate human-robot interaction. The developed computationally intelligent control algorithm enables robust and reliable human tracking by mobile robot platform. The core of the recognition methods proposed is genetic optimization of threshold segmentation and classification of detected regions of interests in every frame acquired by thermal vision camera. The support vector machine classifier determines whether the segmented object is human or not based on features extracted from the processed thermal image independently from current light conditions and in situations where no skin color is visible. Variation in temperature across same objects, air flow with different temperature gradients, person overlap while crossing each other and reflections, put challenges in thermal imaging and will have to be handled intelligently in order to obtain the efficient performance from motion tracking system.

show abstract

Leakage quantification of compressed air on pipes using thermovision

Cited by 19 publications

References 28 publications

Efficacy of a novel phase change material for microclimate body cooling

Efficacy of a novel phase change material for microclimate body cooling

Test of measurement device for the estimation of leakage flow rate in pneumatic pipeline systems

Intelligent optimal control of thermal vision-based Person-Following Robot Platform

Contact Info

Product

Resources

About