Host: The Society of Instrument and Control Engineers, Industrial Application Division
Pages 21
In this paper, the experiment result of two kinds of flowmeter made to obtain a fundamental knowledge for designing the ultrasonic flowmeter for hydrogen gas will be presented. Characteristics of calibration factors and pressure loss of the ultrasonic flowmeters were investigated using sonic Venturi nozzles. As a result, it was confirmed that the uncertainty of one of the flowmeters is less than ±1% for the flow rate range from 30 to 360L/min at the pressure condition of 50kPa, and the pressure loss is below 3kPa.
