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Wellingborough, United Kingdom

Hussain Y.,KROHNE Ltd.
Measurement and Control | Year: 2011

Large size Coriolis flowmeters up to 10-inch (or DN250) have been developed using the latest twin straight-ttube technology. The development of the flow sensors employs a virtual prototyping approach based on numerical simulation. Design is optimised to achieve good flow and density measurement performance. Additional temperature sensors and strain gauges are also attached on the flow tube to provide correction information under non-reference conditions. A specially designed water flow rig is used by the manufacturer to calibrate large size Coriolis flowmeters according to weigh scales traceable to national standards. Extensive tests in the manufacturer's internal flow rigs and external flow rigs have been performed. The test results confirm the flowmeters' performance and prove their capability for custody transfer applications.

Wang T.,KROHNE Ltd. | Baker R.,University of Cambridge
Flow Measurement and Instrumentation | Year: 2014

This paper starts from a brief revisit of key early published work so that an overview of modern Coriolis flowmeters can be provided based on a historical background. The paper, then, focuses on providing an updated review of Coriolis flow measurement technology over the past 20 years. Published research work and industrial Coriolis flowmeter design are both reviewed in details. It is the intention of this paper to provide a comprehensive review study of all important topics in the subject, which include interesting theoretical and experimental studies and innovative industrial developments and applications. The advances in fundamental understanding and technology development are clearly identified. Future directions in various areas together with some open questions are also outlined. © 2014 Elsevier Ltd.

Adefila K.,University of Kent | Yan Y.,University of Kent | Sun L.,Tianjin University | Wang T.,KROHNE Ltd.
Conference Record - IEEE Instrumentation and Measurement Technology Conference | Year: 2014

In this paper, an Averaging Pitot Tube (APT) with Flow Conditioning Wing (FCW) geometry is used as a practical sensing device to measure and characterize the flow of single-phase gaseous CO2. The technique demonstrates a simple, cost-effective and potentially accurate option towards the measurement, accurate accounting and characterization of CO2 in Carbon Capture and Storage pipelines. The metrological performance of the flow sensor is verified using air medium before being applied for gaseous CO2. With a Coriolis mass flow meter acting as a secondary calibration reference to further validate the performance of the APT-FCW flow sensor, both metering instruments were evaluated against a weighing scale apparatus. From experimental and calibration data with air, the APT-FCW's average K-factor and linearity error are found to be 0.5091 and 0.725%, respectively. With operating conditions remaining unaltered in this particular flow measurement application and a target accuracy of ±1%, the error achieved for the Coriolis meter is better than ±0.5% and ±1% for the APT-FCW. Test results and other performance evaluation of the instruments are also discussed. © 2014 IEEE.

Adefila K.,University of Kent | Yan Y.,University of Kent | Wang T.,KROHNE Ltd.
Conference Record - IEEE Instrumentation and Measurement Technology Conference | Year: 2015

Leakage detection and monitoring technologies play a critical role in CO2 transportation pipelines to effectively help reduce financial loses and potential damages to the environment. This paper investigates the leak of gaseous CO2 in a controlled laboratory environment using thermal imaging based on the temperature change detection technique. Platinum resistance temperature detector is also used to provide accurate spot temperature measurement as an additional means. An airtight and carefully contained flow system with a pipe circumscribed in a clear-type polycarbonate chamber is used to simulate CO2 gas leak through various aperture diameter sizes and different flow pressures. The leakage rates from the aperture are estimated via mathematical solutions. Measurement results demonstrate that the IR imaging system is capable of detecting temperature changes under different leakage scenarios. Other results and experimental observations are also detailed in the paper. © 2015 IEEE.

Kang X.,Shanghai JiaoTong University | Wang T.,KROHNE Ltd. | Platts J.,University of Cambridge
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture | Year: 2010

Impact modelling for shot peening or peen forming has progressed from simulating a single impact (or local multiple impacts) to simulating a large number of multiple impacts. It is the aim of this paper to provide quantitative results with a detailed finite element study, and to compare the effects of a single impact and global multiple impacts. Using a two-dimensional (2D) axisymmetric single impact model with a very fine mesh as reference, an appropriate three-dimensional (3D) mesh density for the target material is chosen by evaluating the 3D results against the axisymmetric results. A 3D explicit dynamic finite element analysis combined with a static springback analysis is then used to simulate a large number of steel shot impacts on an aluminium 2024-T351 target. The multiple impact modelling results indicate a clear difference of residual stress profiles between those obtained from single and multiple impact modelling. This difference is due to the global uniformity effects of shot peening, which involves numerous impacts. In addition, equivalent plastic strain obtained from the analysis is compared with microhardness test data on an experimental sample. Finally, the shot peen forming effect of multiple impacts is also evaluated by showing the macroscopic surface deformation. The comparison between single and multiple impact modelling results indicates that it is appropriate and important to model an appropriate coverage of multiple impacts for shot peening and peen forming at its various coverage. © 2010 Authors.

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