Mathematical Model for a Novel Cryogenic Flow Sensor Using Fibre Bragg Gratings

Thekkethil, Sankar Ram; Roy, Komal; Thomas, R.J.; Neumann, H.; Ramalingam, R.

doi:10.1016/j.protcy.2016.05.082

Cited by 7 publications

(2 citation statements)

References 7 publications

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“…However, these flow measurement devices are sensitive to electromagnetic interference and are challenging to adapt to harsh environments. To address the challenges, fiber optic sensors are also used for flow sensing at extreme conditions, [20,21] such as low temperature and high electromagnetic interference. A displacement sensor measures the distance between an object and a reference position in terms of linear travel, rotational angle, or 3D space, which are usually applied in hydraulic actuators.…”

Section: Hydraulic Valves Systems and Sensingmentioning

confidence: 99%

Sensor Technologies for Hydraulic Valve and System Performance Monitoring: Challenges and Perspectives

Liu,

Yuan,

Matias

et al. 2024

Advanced Sensor Research

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Hydraulic fluid power systems are essential for a range of engineering applications such as transportation, heavy industry, and robotics. The scale of the industry is such that hydraulic pumps are estimated to account for 15% of all the energy consumption in the European Union and yet the average efficiency of fluid power systems is only 22%. The digitalization of hydraulic systems offers significant advantages in terms of energy efficiency, performance, reduced maintenance, and automation. However, this requires advances in the integration of smart sensing technologies to provide real‐time feedback on the operation and health of hydraulic components. This review details developing trends in hydraulic fluid power research and provides an overview of progress related to the digitalization of these systems and their integration within an Industry 4.0 framework. The fundamentals of relevant sensor technologies and innovative approaches for integrating sensors into hydraulics systems are discussed. Methods to deliver power to the sensors and associated electronics through harvested pressure ripples are also reviewed. An outlook with respect to future directions in this field is given, including an assessment of the potential for exploiting advanced manufacturing technologies, in particular additive manufacturing, to facilitate successful sensor integration into hydraulic fluid power systems.

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Section: Hydraulic Valves Systems and Sensingmentioning

confidence: 99%

Sensor Technologies for Hydraulic Valve and System Performance Monitoring: Challenges and Perspectives

Liu,

Yuan,

Matias

et al. 2024

Advanced Sensor Research

View full text Add to dashboard Cite

show abstract

“…In fact, FBG also has a great effect at the cryogenic temperatures. Thekkethil et al [32] carried out mathematical simulation modeling of cryogenic flowmeter based on the principle of FBG, and proposed a mathematical model to predict its low temperature operating characteristics. Li et al [33] designed a dynamic temperature experiment using oxygen-free copper in the range of 30 to 273 K, and concluded that the relationship between the temperature and the gauge coefficient of silicon-based FBG could be characterized with a third-order polynomial.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Large-Temperature-Range and Long-Period Monitoring for LNG Marine Auxiliary Based on Fiber Bragg Grating Temperature Measurement

Han

Wang

Zhang

et al. 2021

JMSE

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Temperature is a key variable to evaluate the energy consumption and thermodynamic performance of traditional marine auxiliary machinery, chillers and piping systems. In particular, for the cryogenic storage tanks and fuel gas supply systems of LNG ships, explosion-proof and low-temperature-resistance properties bring new challenges to the onboard temperature measurement and monitoring. In order to promote the development of high-performance and safer monitoring systems for LNG ships, this paper adopted fiber Bragg grating (FBG) technology to ensure the measurement safety and accuracy of temperature sensors, and performs a series of experiments in a large temperature range on the chiller, pipeline, and cryogenic storage tank of an LNG ship and their long-term reliabilities. Firstly, the principle and composition of the designed FBG temperature sensors are introduced in detail, and the measurement accuracy and range of different metal-coated optical fibers were tested in a large temperature range and compared against the traditional thermistors. Then, the effects of different operating conditions of the LNG marine chiller system and cryogenic storage tank on the temperature measurements were investigated. In addition, the drift degrees of the optical fibers and industrial thermistors were analyzed to figure out their reliabilities for long-term temperature measurements. The results showed that for the long-period (16 months) monitoring of LNG ships in a large temperature range (105–315 K) under different shipping conditions, the optical temperature measurement based on FBG technology has sufficient accuracy and dynamic sensitivity with a higher safety than the traditional thermoelectric measurement. Besides, the ship vibration, ambient humidity, and great temperature changes have little impact on its measurement reliability and drifts. This research can provide references and technical supports to the performance testing systems of LNG ships and other relevant vessels with stricter safety standards.

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Multiparameter measuring system using fiber optic sensors for hydraulic temperature, pressure and flow monitoring

Liu

Song

et al. 2022

Measurement

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Mathematical Model for a Novel Cryogenic Flow Sensor Using Fibre Bragg Gratings

Cited by 7 publications

References 7 publications

Sensor Technologies for Hydraulic Valve and System Performance Monitoring: Challenges and Perspectives

Sensor Technologies for Hydraulic Valve and System Performance Monitoring: Challenges and Perspectives

Experimental Study of Large-Temperature-Range and Long-Period Monitoring for LNG Marine Auxiliary Based on Fiber Bragg Grating Temperature Measurement

Multiparameter measuring system using fiber optic sensors for hydraulic temperature, pressure and flow monitoring

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