Flow Rate Measurement in a High-Temperature, Radioactive, and Corrosive Environment

Moazzeni, Taleb; Ma, Jingling; Jiang, Yingtao; Li, Ning

doi:10.1109/tim.2011.2115370

Cited by 21 publications

(13 citation statements)

References 34 publications

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“…Among the harsh environment applications, nuclear power plant has a great demand for measuring the coolant flow rate over a given time period. Moazenni et al proposed a theoretical analysis to measure the flow rate using cross-correlation technique [48]. Moreover, thermocouples with grounded stainless steel shielding employed in this method has been so far the most robust and accurate solution to measure the thermal signal time.…”

Section: Time Of Flight Flow Sensormentioning

confidence: 99%

Thermal Flow Sensors for Harsh Environments

Balakrishnan

Phan

Dinh

et al. 2017

Preprint

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Flow sensing in hostile environment is of increasing interest for applications in automotive, aerospace, and chemical and resource industries. Compared to their counterparts, thermal flow sensors are attractive candidates due to the ease of fabrication, lack of moving parts and higher sensitivity. Recently, a number of thermal flow sensor prototypes have been reported in the literature demonstrating the measurement of fluid flows under hostile conditions. This paper summarizes the concept of thermal flow sensing, operational modes and transduction mechanisms. Then, the choice of materials and their corresponding properties are presented in details. The paper also reports recent progress in the development of thermal flow sensors for harsh environment. In addition, the issues and considerations in packaging are reviewed. Finally, we conclude the review with the future prospects.

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Section: Time Of Flight Flow Sensormentioning

confidence: 99%

Thermal Flow Sensors for Harsh Environments

Balakrishnan

Phan

Dinh

et al. 2017

Preprint

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“…For instance, aluminium nitride, lithium niobate, lead zirconate titanate were commonly utilized for piezoelectric and ultrasonic sensing applications. [14][15][16] On the other hand, platinum 17 , diamond 18 Low-temperature cofired ceramics (LTCC) 19 , stainless steel 20 , yttriazirconia 21 and silicon compatible materials 22,23 were a few used for temperature and flow sensing applications. The application fields with these environments include aerospace 24 , automotive 25 , industrial process control 26 and sea exploration 27 .…”

Section: Introductionmentioning

confidence: 99%

A hot-film air flow sensor for elevated temperatures

Balakrishnan

Dinh

Nguyen

et al. 2019

Review of Scientific Instruments

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We report for a novel packaging and experimental technique to characterize thermal flow sensors at high temperatures. To start with, the paper briefly presents the fabrication of 3C-SiC (silicon carbide) on a glass substrate via anodic bonding, followed by the study of thermoresistive and Joule heating effects in the 3C-SiC nano-thin film heater. A high thermal coefficient of resistance (TCR) of approximately-20,720 ppm/K at ambient temperature and-9,287 ppm/K at 200°C suggest the potential use of silicon carbide for thermal sensing applications in harsh environments. During the Joule heating test, a high temperature epoxy and a brass metal sheet were utilized to establish the electric conduction between the metal electrodes and the SiC heater inside a temperature oven. In addition, the metal wires from the sensor to external circuitry were protected by a fibre glass insulating sheath to avoid short-circuit. The Joule heating test ensured the mechanical and Ohmic contact stabilities at elevated temperatures. Using a hot-wire anemometer as reference flow sensor, calibration test was performed at 25°C, 35°C and 45°C in the oven. Finally, the SiC hot-film sensor was characterized for a range of low air flow velocity, indicating a sensitivity of 5 mm-1 s. The air flow was established by driving a metal propeller connected to a DC motor and controlled by a microcontroller. The materials, metallization and interconnects used in our flow sensor were robust and survived temperatures of around 200°C.

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“…These reported works suggests that several techniques are adopted to calibrate UFM but these linearization methods are limited to a certain range of input scale. Further, effects of liquid temperature and density on flow measurement are discussed in [20][21], and effect of physical dimensions of flow meter is reported by Zhang Ha et.al [22].…”

Section: Introductionmentioning

confidence: 99%

A Practically Validated Intelligent Calibration Technique using Optimized ANN for Ultrasonic Flow meter

Santhosh

Roy

2015

ijeei

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Design of an intelligent flow measurement technique by ultrasonic transducers using an Optimized Artificial Neural Network (OANN) is discussed in this paper. The objectives of the present work are (i) to extend the linearity range of flow measurement to 100% of full scale input range, (ii) to make the flow measurement technique adaptive to variations in (a) pipe diameter, (b) liquid density, (c) liquid temperature, and (iii) to achieve objectives (i) and (ii) by using an optimized artificial neural network. The output of an ultrasonic transducer is frequency. It is converted to voltage by using a suitable data conversion circuit. A suitable optimal ANN is added, in place of conventional calibration circuit, in cascade to data conversion circuit. ANN is trained, and tested with simulated data considering various values of pipe diameter, liquid density, and liquid temperature. The proposed technique is then subjected to practical data for validation. Results show that the proposed technique has fulfilled the desired objectives.

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Flow Rate Measurement in a High-Temperature, Radioactive, and Corrosive Environment

Cited by 21 publications

References 34 publications

Thermal Flow Sensors for Harsh Environments

Thermal Flow Sensors for Harsh Environments

A hot-film air flow sensor for elevated temperatures

A Practically Validated Intelligent Calibration Technique using Optimized ANN for Ultrasonic Flow meter

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