Results 21 to 30 of about 2,645,003 (172)
Analisis Efek Soundspeed Terhadap Keakuratan Pengukuran Laju Alir Gas Pada Ultrasonic Gas Flowmeter (UFM) [PDF]
, 2020 Analysis of the accuracy of measuring instruments in the petroleum industry is very important to analyze because it will be very important to know the amount of fluid flowing every day (BFPD).
Prayogo, Bimantara
core +2 more sources
Ultrasonic dynamic gas flowmeter for medical applications [PDF]
The Journal of the Acoustical Society of America, 1975 The principle of a dynamic flow measurement device is described, which allows the measurement of gas flow in the range of 1 to 150 1/min with time resolution of 1 msec. With two ring-shaped transducers, the delay time upstream and downstream of ultrasonic pulses in the upper kilohertz and megahertz range is measured.
H. Frankenberger Draegerwerk +2 more
openaire +1 more source
IET Science, Measurement & Technology, 2021 As a typical method for calculating time‐of‐flight (TOF), the double‐threshold method is widely applied in many time‐difference‐based ultrasonic gas flowmeters.
Dandan Zheng, Yang Mao, Zhibin Yang
doaj +1 more source
Piezoceramic Element Design and Fabrication for Ultrasonic Transducer of Gas Meter [PDF]
Journal of Chemical and Petroleum Engineering, 2019 Ultrasonic transducers play a significant role in generating and receiving the acoustic waves in ultrasonic flowmeters. Depending on the required accuracy, the ultrasonic transducers can be installed either in one pair or more in an ultrasonic flowmeter.
Seyed Foad Mousavi +1 more
doaj +3 more sources
Flow Measurement of Natural Gas in Pipeline Based on 1D-Convolutional Neural Network
International Journal of Computational Intelligence Systems, 2020 Time-difference method is a vitally significant algorithm for measuring natural gas flow with ultrasonic gas flowmeter. The key of this algorithm is to accurately measure the arrival time of ultrasonic signal.
Tianjiao Zhang
doaj +1 more source
Ultrasonic gas flow metering in hydrogen-mixed natural gas using Lamb waves
AIP Advances, 2023 Hydrogen mixing in existing natural gas pipelines efficiently achieves large-scale, long-distance, and low-cost hydrogen delivery. The physical properties of hydrogen and natural gas differ significantly.
Shouhu Ji +5 more
doaj +1 more source
Mechanical Engineering Journal, 2022 At a combined cycle power plant, gas turbine cooling air flowrate data is required for operation and maintenance because it is an important for analyzing not only the temperature of both stators and blades but also plant efficiency.
Shuichi UMEZAWA, Shuichi OHMORI
doaj +1 more source
Study on flow field and measurement characteristics of a small-bore ultrasonic gas flow meter
Measurement + Control, 2021 A new structure is proposed for a DN25-type ultrasonic gas flow meter with a V-shape double sound channel arrangement. The flow field characteristics are analyzed including velocity curves for the four channel lines, velocity profiles for different cross-
Desheng Chen, Haibin Cao, Baoling Cui
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Steam flow measurement in the use of clamp-on method
Nihon Kikai Gakkai ronbunshu, 2017 A clamp-on ultrasonic gas flowmeter we had developed has been modified to measure steam flow by newly developed damping material endurable to high temperature.
Hiroshi SASAKI +3 more
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Meitan xuebao, 2023 Currently the law of heat and mass transfer and the analysis of coal damage in the process of injecting low-temperature liquid nitrogen (LN2) into the borehole of coal seam are the key problems to be solved urgently for the application of LN2 in the ...
Yuzhou CONG +7 more
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