Analyzing Thermal Characteristics of Urban Streets Using a Thermal Imaging Camera: A Case Study on Commercial Streets in Seoul, Korea

The paper discusses the results of a study carried out to determine the thermal condition of a conveyor power unit using a thermal imaging camera. The tests covered conveyors in the main haulage system carrying coal from a longwall. The measurements were taken with a thermal imaging diagnostic method which measures infrared radiation emitted by an object. This technology provides a means of assessing the imminence and severity of a possible failure or damage. The method is a non-contact measuring technique and offers great advantages in an underground mine. The thermograms were analysed by comparing the temperature distribution. An analysis of the operating time of the conveyors was also carried out and the causes of the thermal condition were determined. The main purpose of the research was to detect changes in thermal state during the operation of a belt conveyor that could indicate failure and permit early maintenance and eliminate the chance of a fire. The article also discusses the construction and principle of operation of a thermal imaging camera. The findings obtained from the research analysis on determining the thermal condition of the conveyor drive unit are a valuable source of information for the mine’s maintenance service.

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Rewetting Analysis of Hot Moving Surface by Round Water Jet Impingement

Volume 9: Student Paper Competition ◽

10.1115/icone26-81673 ◽

2018 ◽

Author(s):

Avadhesh Kumar Sharma ◽

Mayank Modak ◽

Santosh K. Sahu

Keyword(s):

Experimental Investigation ◽

Reynolds Number ◽

Thermal Imaging ◽

Transient Temperature ◽

Axial Distance ◽

Initial Surface ◽

Moving Plate ◽

Thermal Imaging Camera ◽

Plate Velocity ◽

Imaging Camera

Impinging jets are commonly utilized in the run-out table (ROT) cooling in the hot rolling process in steel manufacturing industries. The phenomenon of rapid cooling of a sufficiently hot surface is termed as the quenching. The present paper reports the rewetting behavior of 0.15 mm thick hot moving stainless steel foil (SS-304) by circular impinging jet from bottom side through experimental investigation. The transient temperature of the hot foil is recorded by using thermal imaging camera (A655sc, FLIR system). Tests are performed for a varied range of Reynolds number (Re = 2500–10000), nozzle to plate distance (z/d = 6), moving plate velocity (0–40 mm/s) and initial surface temperature 500±10 °C. Transient temperature obtained from thermal imaging camera is used to evaluate rewetting time and rewetting velocity. Based on the experimental investigation correlation has been proposed to predict non-dimensional rewetting velocity as a function of various parameters, namely, Reynolds number, non-dimensional axial distance and moving plate velocity.

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MOEMS thermal imaging camera

2008 Ph.D. Research in Microelectronics and Electronics ◽

10.1109/rme.2008.4595735 ◽

2008 ◽

Cited By ~ 1

Author(s):

M. Fatih Toy ◽

Onur Ferhanoglu ◽

Hamdi Torun ◽

F. Levent Degertekin ◽

Hakan Urey

Keyword(s):

Thermal Imaging ◽

Thermal Imaging Camera ◽

Imaging Camera

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Impact of Thermal Dissipation on the Lighting Performance and Useful Life of LED Luminaires Applied to Urban Lighting: A Case Study

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph19020752 ◽

2022 ◽

Vol 19 (2) ◽

pp. 752

Author(s):

Juan de Dios Unión-Sánchez ◽

Manuel Jesús Hermoso-Orzáez ◽

Manuel Jesús Hervás-Pulido ◽

Blas Ogáyar-Fernández

Keyword(s):

Thermal Imaging ◽

Simulation Software ◽

Thermal Dissipation ◽

Junction Temperature ◽

Ansys Fluent ◽

Imaging Camera ◽

Fluent Simulation ◽

Useful Life

Currently, LED technology is an established form of lighting in our cities and homes. Its lighting performance, durability, energy efficiency and light, together with the economic savings that its use implies, are displacing other classic forms of lighting. However, some problems associated with the durability of the equipment related to the problems of thermal dissipation and high temperature have begun to be detected, which end up affecting their luminous intensity and the useful life. There are many studies that show a direct relationship between the low quality of LED lighting and the aging of the equipment or its overheating, observing the depreciation of the intensity of the light and the visual chromaticity performance that can affect the health of users by altering circadian rhythms. On the other hand, the shortened useful life of the luminaires due to thermal stress has a direct impact on the LCA (Life Cycle Analysis) and its environmental impact, which indirectly affects human health. The purpose of this article is to compare the results previously obtained, at different contour temperatures, by theoretical thermal simulation of the 3D model of LED street lighting luminaires through the ANSYS Fluent simulation software. Contrasting these results with the practical results obtained with a thermal imaging camera, the study shows how the phenomenon of thermal dissipation plays a fundamental role in the lighting performance of LED technology. The parameter studied in this work is junction temperature (Tj), and how it can be used to predict the luminous properties in the design phase of luminaires in order to increase their useful life.

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Towards Collection of Smart City Data for Cloud Storage Using UAVs

Embedded Selforganising Systems ◽

10.14464/ess.v8i1.478 ◽

2021 ◽

Vol 8 (1) ◽

pp. 4-9

Author(s):

Ilia Ageev ◽

Wolfram Hardt

Keyword(s):

Data Collection ◽

Thermal Imaging ◽

Smart City ◽

Cloud Storage ◽

Traffic Analysis ◽

Thermal Imaging Camera ◽

Advantages And Disadvantages ◽

Cloud Server ◽

Imaging Camera

The article describes the methodology and process of collecting smart city data using drones for cities that do not have a sufficiently developed infrastructure. For storage and subsequent analysis of data, a cloud server is required; TUC DriveCloud is presented as an example of such a server in the article. Traffic analysis and building inspection are described as examples of drone data collection tasks. The advantages and disadvantages of collecting data using a thermal imaging camera are also discussed using the example of the problem of detecting and tracking the movement of people.

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