Experimental Studies on Qualification of Structural Integrity of Eddy Current Flow Meter

Author(s):  
S. Suresh Kumar ◽  
Sudheer Patri ◽  
R. K. Sharma ◽  
R. Punniamoorthy ◽  
Vishal D. Paunikar ◽  
...  

Author(s):  
Nico Krauter ◽  
Vladimir Galindo ◽  
Thomas Wondrak ◽  
Sven Eckert ◽  
Gunter Gerbeth

Abstract The Eddy Current Flow Meter is a reliable and robust inductive sensor for the measurement of flowrates in liquid metal flows. This kind of sensor is usually being used in pipe flows where the flow is mostly parallel to the sensor axis. When this sensor is used as part of the safety instrumentation above the subassemblies in liquid metal cooled fast reactors, the flow angle may change rapidly according to the conditions within the reactor. In this paper we investigate the performance of the Eddy Current Flow Meter in flows inclined to the sensor axis by numerical simulations as well as model experiments. We demonstrate that the Eddy Current Flow Meter yields reliable results for flow angles up to 30° while the sensitivity of the sensor is significantly reduced for larger angles.



1972 ◽  
Author(s):  
J.R. Sheff ◽  
D.L. Lessor
Keyword(s):  


2013 ◽  
Vol 265 ◽  
pp. 1223-1231 ◽  
Author(s):  
S. Sureshkumar ◽  
Mohammad Sabih ◽  
S. Narmadha ◽  
N. Ravichandran ◽  
R. Dhanasekharan ◽  
...  


2020 ◽  
Author(s):  
B. Cameron ◽  
C. Unal ◽  
H. Ban ◽  
O. Anderoglu ◽  
G. Kinzler


2019 ◽  
Author(s):  
Sacit Cetiner ◽  
Kellen Oleksak ◽  
Bruce Warmack ◽  
Michael Roberts ◽  
Milton Ericson ◽  
...  


2019 ◽  
Author(s):  
S. Cetiner ◽  
A. Fathy ◽  
K. Oleksak


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Saurabhi Samant ◽  
Wei Wu ◽  
Shijia Zhao ◽  
Behram Khan ◽  
Mohammadali Sharzehee ◽  
...  

AbstractLeft main (LM) coronary artery bifurcation stenting is a challenging topic due to the distinct anatomy and wall structure of LM. In this work, we investigated computationally and experimentally the mechanical performance of a novel everolimus-eluting stent (SYNERGY MEGATRON) purpose-built for interventions to large proximal coronary segments, including LM. MEGATRON stent has been purposefully designed to sustain its structural integrity at higher expansion diameters and to provide optimal lumen coverage. Four patient-specific LM geometries were 3D reconstructed and stented computationally with finite element analysis in a well-validated computational stent simulation platform under different homogeneous and heterogeneous plaque conditions. Four different everolimus-eluting stent designs (9-peak prototype MEGATRON, 10-peak prototype MEGATRON, 12-peak MEGATRON, and SYNERGY) were deployed computationally in all bifurcation geometries at three different diameters (i.e., 3.5, 4.5, and 5.0 mm). The stent designs were also expanded experimentally from 3.5 to 5.0 mm (blind analysis). Stent morphometric and biomechanical indices were calculated in the computational and experimental studies. In the computational studies the 12-peak MEGATRON exhibited significantly greater expansion, better scaffolding, smaller vessel prolapse, and greater radial strength (expressed as normalized hoop force) than the 9-peak MEGATRON, 10-peak MEGATRON, or SYNERGY (p < 0.05). Larger stent expansion diameters had significantly better radial strength and worse scaffolding than smaller stent diameters (p < 0.001). Computational stenting showed comparable scaffolding and radial strength with experimental stenting. 12-peak MEGATRON exhibited better mechanical performance than the 9-peak MEGATRON, 10-peak MEGATRON, or SYNERGY. Patient-specific computational LM stenting simulations can accurately reproduce experimental stent testing, providing an attractive framework for cost- and time-effective stent research and development.





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