Infrared Temperature Measurement Sensors of Overhead Power Conductors

Castro, P.; Lecuna, Ramón; Canteli, Mario Mañana; Martı́n, M. J.; Campo, D. del

doi:10.3390/s20247126

Cited by 19 publications

(12 citation statements)

References 13 publications

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“…A comfortable technology for measurement of energy efficiency is the infrared thermography [11][12][13][14][15][16] combined with image processing techniques. Sensors can be implemented in complex cloud-connected networks according to the locations of the sites to be controlled.…”

Section: Sensor Technologies and Energy Metering Systemsmentioning

confidence: 99%

Advanced and Complex Energy Systems Monitoring and Control: A Review on Available Technologies and Their Application Criteria

Massaro¹,

Starace²

2022

Sensors

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Complex energy monitoring and control systems have been widely studied as the related topics include different approaches, advanced sensors, and technologies applied to a strongly varying amount of application fields. This paper is a systematic review of what has been done regarding energy metering system issues about (i) sensors, (ii) the choice of their technology and their characterization depending on the application fields, (iii) advanced measurement approaches and methodologies, and (iv) the setup of energy Key Performance Indicators (KPIs). The paper provides models about KPI estimation, by highlighting design criteria of complex energy networks. The proposed study is carried out to give useful elements to build models and to simulate in detail energy systems for performance prediction purposes. Some examples of energy complex KPIs based on the integration of the Artificial Intelligence (AI) concept and on basic KPIs or variables are provided in order to define innovative formulation criteria depending on the application field. The proposed examples highlight how modeling a complex KPI as a function of basic variables or KPIs is possible, by means of graph models of architectures.

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Section: Sensor Technologies and Energy Metering Systemsmentioning

confidence: 99%

Advanced and Complex Energy Systems Monitoring and Control: A Review on Available Technologies and Their Application Criteria

Massaro¹,

Starace²

2022

Sensors

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“…Temperature measurements by contact in photovoltaic systems have to aim to accurately compare these measurements with temperature measurements by non-contact methods [ 20 ]. Such comparisons are made in other fields, such as in the case of electrical power system transmission lines [ 21 ], in which temperature measurements by contact and non-contact are performed for several months under different climatic and load conditions, with temperature measurement by IR in the power system transmission line conductor being in a range of less than 4 °C difference concerning contact temperature measurement methods for 88% of the samples and less than 6 °C for 99% of the samples.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Uncertainty of Surface Temperature Measurements in Photovoltaic Modules in Outdoor Operation

García-López

Álvarez-Tey

2022

Sensors

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Faults in photovoltaic modules in operation can lead to power losses. By determining the module surface temperature, hot spots that can potentially cause this power loss can be detected. Temperature measurement by radiation allows a complete, reliable, and fast qualitative determination of hot spots on PV modules in outdoor operation. However, to obtain quantitative values, it is necessary to consider multiple factors: emissivity, reflected radiation, wind speed, intensity, shading, etc. Temperature quantitative measurement evaluation by contact is more studied, although by this technique it is impossible to examine the temperature of the entire module to detect hot spots because it is a point measurement and due to shading caused by the measurement probe on the surface. In this work, a method of temperature measurement by radiation is described, evaluating the uncertainty components, and a comparison is made with temperature measurement by contact on the module rear side points where module heating has been detected, also evaluating the uncertainty components. This comparison of both methods and uncertainty determination allows establishing a methodology in quantitative temperature measurement by radiation in photovoltaic modules in outdoor operation.

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“…An accurate measurement of the surface temperature of a turbine blade and the control of its temperature distribution is an important basis for diagnosing turbine blade failure. The methods of measuring the surface temperature of turbine blades mainly include thin-film thermocouples [ 21 , 22 , 23 ], temperature indicating paint [ 24 ], infrared radiation [ 25 , 26 , 27 ], and irradiation crystals [ 28 , 29 , 30 ]. Based on the advantages of irradiating crystals, the authors [ 20 ] proposed an easy and cheap method of temperature measurement using a thin-film crystal.…”

Section: Introductionmentioning

confidence: 99%

Effect of Surface Topology on the Apparent Thermal Diffusivity of Thin Samples at LFA Measurements

Szczepaniak

2022

Materials

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This paper deals with the problem of the influence of surface topography on the results of thermal diffusivity measurements when determined using the instantaneous surface heat source method, also called the pulse method. The analysis was based on numerical tests carried out using Comsol Multiphysics software. The results of experimental investigations on the actual material structure using an electron microscope, an optical microscope and a profilometer were used to develop a numerical model. The influence of the non-uniformity of the surface of the tested sample on the determined values of half-time of the thermal response of the sample’s rough surface to the impulse forcing on the opposing flat surface was determined by developing the data for simulated measurements. The effect of the position of the response data reading area on the obtained simulation results was also analyzed. The obtained results can be used to improve the accuracy of experimental heat transfer studies performed on thin-film engineering structures depending on the uniformity and parallelism of the material applied to engineering structures. The difference in half-life determination error results for various analyzed models can be as high as 16.7%, depending on the surface from which the responses of the heating impulse are read. With an equivalent model in which 10% of the material volume corresponds to the rough part as a single inclusion, hemisphere, the error in determining thermal diffusivity was equal to 3.8%. An increase in the number of inclusions with smaller weight reduces an error in the determination of thermal diffusivity, as presented in the paper.

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Infrared Temperature Measurement Sensors of Overhead Power Conductors

Cited by 19 publications

References 13 publications

Advanced and Complex Energy Systems Monitoring and Control: A Review on Available Technologies and Their Application Criteria

Advanced and Complex Energy Systems Monitoring and Control: A Review on Available Technologies and Their Application Criteria

Evaluation of the Uncertainty of Surface Temperature Measurements in Photovoltaic Modules in Outdoor Operation

Effect of Surface Topology on the Apparent Thermal Diffusivity of Thin Samples at LFA Measurements

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