Numerical study of the accuracy of temperature measurement by thermocouples in small-scale reactors

Blay, Vincent; Bobadilla, Luis F.

doi:10.1016/j.cherd.2017.06.003

Cited by 12 publications

(2 citation statements)

References 29 publications

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“…At present, the battery temperature measurement methods are shown in Table I. The thermal resistor, thermocouple [9,10] and infrared temperature measurement method [11,12] can only measure the battery surface temperature, cannot measure the internal temperature; the electrical impedance, and magnetic resonance [13][14][15][16] have a lower time resolution. A lot of work has been done in the health state detection and mathematical model estimation of Lithium-ion batteries [17][18][19][20][21], but in the actual temperature estimation of Lithium-ion batteries, the problem of non-contact rapid and accurate estimation of internal temperature of lithium batteries has not been solved.…”

Section: Introductionmentioning

confidence: 99%

Temperature Estimation of Lithium-Ion Battery Based on an Improved Magnetic Nanoparticle Thermometer

Zou

Wang

et al. 2020

IEEE Access

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Lithium-ion batteries are widely used in new energy vehicles, especially electric vehicles. Temperature estimation is very important for battery life and safety. However, current temperature measurement methods cannot accurately measure the battery internal temperature. In this paper, a new method for battery temperature estimation based on an improved magnetic nanoparticle thermometer (MNPT) is proposed. The influence of dc magnetic field on temperature accuracy of a MNPT is firstly studied, the optimal dc magnetic field is found out under limitation of maximum temperature sensitivity and minimum temperature error, a new model of an improved MNPT is also established based on the ratio of first and second harmonics, and then the Lithium-ion battery temperature is estimated by use of the improved MNPT, the simulation and experiment results show that the improved MNPT can accurately estimate the battery internal temperature, which provides a new method for monitoring battery temperature of a new energy vehicle.

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Section: Introductionmentioning

confidence: 99%

Temperature Estimation of Lithium-Ion Battery Based on an Improved Magnetic Nanoparticle Thermometer

Zou

Wang

et al. 2020

IEEE Access

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“…The existing temperature sensing systems (temperature sensors) that are widely used include the thermocouple-type, thermal resistance-type, PN junction (Positive-Negative junction) type, and other lead-type temperature sensors. For instance, thermocouples are used to measure the temperature in small-scale reactors [ 3 ], to measure surface temperatures [ 4 ], and to measure the temperature between the hot and cold sides of vehicular heat exchangers [ 5 ]. In thermal resistance type sensors, the temperature is monitored and used either directly or indirectly [ 6 ], and platinum thermal resistance is the most commonly used type in industrial production [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Wireless Temperature Measurement: Design, Manufacture, and Testing of a PCB-Based Wireless Passive Temperature Sensor

Yan

Yang

Hong

et al. 2018

Sensors

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Low-cost wireless temperature measurement has significant value in the food industry, logistics, agriculture, portable medical equipment, intelligent wireless health monitoring, and many areas in everyday life. A wireless passive temperature sensor based on PCB (Printed Circuit Board) materials is reported in this paper. The advantages of the sensor include simple mechanical structure, convenient processing, low-cost, and easiness in integration. The temperature-sensitive structure of the sensor is a dielectric-loaded resonant cavity, consisting of the PCB substrate. The sensitive structure also integrates a patch antenna for the transmission of temperature signals. The temperature sensing mechanism of the sensor is the dielectric constant of the PCB substrate changes with temperature, which causes the resonant frequency variation of the resonator. Then the temperature can be measured by detecting the changes in the sensor’s working frequency. The PCB-based wireless passive temperature sensor prototype is prepared through theoretical design, parameter analysis, software simulation, and experimental testing. The high- and low-temperature sensing performance of the sensor is tested, respectively. The resonant frequency decreases from 2.434 GHz to 2.379 GHz as the temperature increases from −40 °C to 125 °C. The fitting curve proves that the experimental data have good linearity. Three repetitive tests proved that the sensor possess well repeatability. The average sensitivity is 347.45 KHz/°C℃ from repetitive measurements conducted three times. This study demonstrates the feasibility of the PCB-based wireless passive sensor, which provides a low-cost temperature sensing solution for everyday life, modern agriculture, thriving intelligent health devices, and so on, and also enriches PCB product lines and applications.

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Special issue — Energy systems engineering

Georgiadis

Liu

Kopanos

2018

Chemical Engineering Research and Design

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Numerical study of the accuracy of temperature measurement by thermocouples in small-scale reactors

Cited by 12 publications

References 29 publications

Temperature Estimation of Lithium-Ion Battery Based on an Improved Magnetic Nanoparticle Thermometer

Temperature Estimation of Lithium-Ion Battery Based on an Improved Magnetic Nanoparticle Thermometer

Low-Cost Wireless Temperature Measurement: Design, Manufacture, and Testing of a PCB-Based Wireless Passive Temperature Sensor

Special issue — Energy systems engineering

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