Flowmeters for petro and LNG custody transfer
Sentinel flowmeter family from GE Sensing optimized for complex and demanding service with liquefied natural gas and petroleum product sales and transfers.
GE Sensing & Inspection Technologies has released its Sentinel LCT and LNG families, designed for liquid petroleum products and liquefied natural gas, respectively. GE says both offer improved accuracy compared to traditional ship and tank level measurement through the use of extensive CFD (computational fluid dynamics) techniques to guarantee high accuracy, even under conditions where flow conditions change constantly.
"With Sentinel LCT and LNG we are adding the highest accuracy ultrasonic liquid flowmeters in the industry to our already robust line of flowmeters," says Ashish Bhandari, general manager of the flow segment at GE Sensing & Inspection Technologies.
The company says that Sentinel LCT has a number of GE proprietary features that make the meters able to read reliably regardless of viscosity changes. Whether measuring gasoline or a heavy crude, there is no need for a proving run every time the product changes. The family uses advanced diagnostics to perform continuous self-checks and sends out a warning if something goes wrong. A built-in flow computer allows for pressure, temperature, and density corrections according to API 11.1.
Sentinel LNG is designed specifically for cryogenic LNG measurements. With an externally certified measurement uncertainty of 0.20 to 0.25%, the meter is an alternative to ship and tank level measurement. GE points out that whereas a level measurement needs multiple level, pressure, and temperature transducers to compensate for density variations, just one Sentinel LNG can measure the total volume during loading and unloading of a ship or tanks. Tanks trapping tables and corrections for a ship that moves due to wave motion are no longer required, allowing for a significant improvement in measurement accuracy.
Both Sentinel LNG and LCT are fully welded and have no moving parts that can wear out and cause the meter to drift. Both are full bore and do not require filters or strainers. Sentinel LNG has specially designed acoustic buffers that allow the acoustic transducers to be mounted outside the cryogenic zone, avoiding temperature shocks and long-term stress cracking.
-Edited by Peter Welander, process industries editor, PWelander@cfemedia.com,
Control Engineering Process Instrumentation & Sensors Monthly
Register here to select your choice of free eNewsletters .
Case Study Database
Get more exposure for your case study by uploading it to the Plant Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.
These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.
Click here to visit the Case Study Database and upload your case study.
2012 Salary Survey
In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.
Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.