Blogs
We hope you enjoy these posts from Jesse Yoder, president of Flow Research. Click on the title, date, or “Read more” to see the entire post.
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Large pipe flow measurement: large sensors or small meters?
Read more: Large pipe flow measurement: large sensors or small meters?Flow measurement in large pipes has long presented a challenge for many types of flowmeters. Coriolis meters become heavier, more unwieldy, and more expensive as the line sizes they are measuring increase. Vortex meters face similar issues. As line sizes increase, bluff bodies grow larger and vortex shedding frequencies decrease. Ultrasonic meters actually do better…
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The History of Thermal Flowmeters
Read more: The History of Thermal FlowmetersThe history of thermal flowmeters is fascinating. Thermal flowmeters were born on the West Coast of the United States —the result of independent development by first two, then three separate companies. One company was Fluid Components International (www.fluidcomponents.com), which began by developing thermal flow switches that were used in the oil patch. The switches detected the movement…
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The difference between thermal dispersion and calorimetric flowmeters
Read more: The difference between thermal dispersion and calorimetric flowmetersI believe I now see a difference between the thermal dispersion and calorimetric flowmeters. Thermal dispersion flowmeters measure flow by in two ways. One is by measuring the amount of power required to keep a constant temperature difference between a HEATED sensor and another temperature sensor in the flowstream. This is called the Constant Temperature…
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Filling in the Blanks in the Vortex Story
Read more: Filling in the Blanks in the Vortex StoryI’ve learned a lot since I first set out to determine who introduced the first working commercial vortex flowmeter.
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Did FMC Technologies have a Coriolis flowmeter?
Read more: Did FMC Technologies have a Coriolis flowmeter?After hours of research I have concluded the following: FMC sold a Coriolis flowmeter called the Apollo in the early 2000’s –a at least in 2004. This was for liquid measurement, and I don’t know who developed it. FMC partnered with Direct Measurement Corp. (DMC) on a straight tube Coriolis gas flowmeter. This meter was…
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Calculating the Cross-Sectional Area of a Pipe
Read more: Calculating the Cross-Sectional Area of a PipeWith all the sources of uncertainty in flow measurement, the last thing we need is another source of uncertainty based on the geometry of flow. Yet there is such a source of uncertainty that has to do with calculating the cross-sectional area of a pipe. Volumetric flow is defined as the actual volume of fluid…