scholarly journals Quantitative validation of 3D garment simulation software for determination of air gap thickness in lower body garments

2017 ◽  
Vol 254 ◽  
pp. 162007
Author(s):  
E Mert ◽  
A Psikuta ◽  
M Arevalo ◽  
C Charbonnier ◽  
C Luible-Bär ◽  
...  
Keyword(s):  
Simulation Software ◽  
Air Gap ◽  
Lower Body ◽  
Quantitative Validation

Application of OLI Electrolyte Simulation to the Resolution of Corrosion Concerns Within a Reciprocating Compressor

2012 ◽  
Author(s):  
Diane L. Stewart ◽  
Anthony J. Gerbino ◽  
Tony Scribner
Keyword(s):  
Simulation Software ◽  
Dew Point ◽  
Reciprocating Compressor ◽  
Particulate Contamination ◽  
Ionic Equilibria ◽  
Water Ph ◽  
Condensed Water ◽  
Compressor Reliability

A 38 MMSCF/D Cooper Bessemer Model LM-9 reciprocating compressor in hydrogen service at the Praxair Westlake LA facility has experienced notable particulate contamination within the feed gas. The particulates were believed to be caused by upstream piping corrosion; however, to definitely state the cause, the properties of the fluid existing in the five-stage compressor needed to be more fully understood. An OLI electrochemical simulation software was used for dew point prediction, determination of the condensed phase ionic equilibria, and corrosion rate prediction. These tasks were beyond capabilities of the site-licensed UniSim software, as presently configured. Specifically, the model was used to identify the dew point conditions (temperature, pressure) and properties of the condensed water (pH, corrosivity, dissolved O2, and chlorine speciation). Model results were compared with site inspection findings. Subsequently, recommended limits for chlorine and oxygen in the feed gas were established to improve long term compressor reliability.

scholarly journals Calculation improvement of no-load stray losses in induction motors with experimental validation

2015 ◽  
Vol 12 (3) ◽  
pp. 303-320
Author(s):  
Miloje Kostic
Keyword(s):  
High Frequency ◽  
Experimental Validation ◽  
Air Gap ◽  
New Classification ◽  
Iron Losses ◽  
Surface Iron ◽  
Space Harmonics ◽  
Rotor Cage

On the basis of the known fact that all air gap main flux density variations are enclosed by permeance slot harmonics, only one component of stray losses in rotor (stator) iron is considered in the new classification, instead of 2 components: rotor (stator) pulsation iron losses, and rotor (stator) surface iron losses. No-load rotor cage (high-frequency) stray losses are usually calculated. No-load stray losses are caused by the existence of space harmonics: the air-gap slot permeance harmonics and the harmonics produced by no-load MMF harmonics. The second result is the proof that the corresponding components of stray losses can be calculated separately for the mentioned kind of harmonics. Determination of the depth of flux penetration and calculations of high frequency iron losses are improved. On the basis of experimental validation, it is proved that the new classification of no-load stray losses and the proposed method for the calculation of the total value is sufficiently accurate.

scholarly journals Determination of Optimal Production Process Using Scheduling and Simulation Software

2018 ◽  
Vol 17 (4) ◽  
pp. 609-622 ◽  
Author(s):  
D. Duplakova ◽  
M. Teliskova ◽  
J. Duplak ◽  
J. Torok ◽  
M. Hatala ◽  
...  
Keyword(s):  
Production Process ◽  
Simulation Software ◽  
Optimal Production

Validation of a novel 3D scanning method for determination of the air gap in clothing

Measurement ◽  
2015 ◽  
Vol 67 ◽  
pp. 61-70 ◽  
Author(s):  
Agnes Psikuta ◽  
Joanna Frackiewicz-Kaczmarek ◽  
Emel Mert ◽  
Marie-Ange Bueno ◽  
Renè M. Rossi
Keyword(s):  
3D Scanning ◽  
Air Gap ◽  
Scanning Method

Experimental and Numerical Study of the Cutting Temperature during the Turning of the C45 Steel

2016 ◽  
Vol 823 ◽  
pp. 507-512
Author(s):  
Mourad Abdelkrim ◽  
Mourad Brioua ◽  
Abderrahim Belloufi ◽  
Abdelhafid Gherfi
Keyword(s):  
Numerical Study ◽  
Digital Simulation ◽  
Cutting Temperature ◽  
Medium Carbon Steel ◽  
Simulation Software ◽  
Interface Temperature ◽  
Work Piece ◽  
Turning Process

In machining operation, the quality of surface finish is an important requirement for many turned work pieces. cutting temperature is one of the most important parameters in determining the cutting performance and tool life. the objective for this work is to estimate the cutting temperature in 3D model on tool-chip interface and the interface temperature during turning process, using the digital simulation software COMSOL Multiphysics.The tool–chip interface temperature results obtained from experimental results by using C45 medium carbon steel work piece with natural contact tools, without the application of cooling and lubricating agents and a K type thermocouple technique was used for estimating cutting temperatures in a turning operation.This procedure facilitates the determination of the temperature at tool-chip interface in dry turning process, which is still a challenge for existing experimental and numerical methods.

Dielectric Measurement Of Multi-Layered Medium Using An Open-Ended Waveguide

1996 ◽  
Vol 430 ◽  
Author(s):  
O. Tantot ◽  
M. Chatard-Moulin ◽  
P. Guillon
Keyword(s):  
Reflection Coefficient ◽  
Complex Permittivity ◽  
Layered Medium ◽  
Circular Waveguide ◽  
Air Gap ◽  
Dielectric Measurement ◽  
Microwave Measurement ◽  
Measurement Devices

AbstractThe use of a circular waveguide radiating into a multi-layered media allows the characterization of heterogeneous and fluid subtances. Many microwave measurement devices, based on reflection coefficient measurements, are subjected to air gap problems that introduce some inaccuracy in the determination of the unknown complex permittivity of the materials. Our purpose is to try and take the air gap into account in these measurements.

The Results of Experimental Determination of Air Output and Velocity of Flow in Double Skin Facades

2015 ◽  
Vol 725-726 ◽  
pp. 93-99 ◽  
Author(s):  
Mikhail Petrichenko ◽  
Nikolai Vatin ◽  
Darya Nemova ◽  
Vyacheslav Olshevskiy
Keyword(s):  
Experimental Determination ◽  
Average Velocity ◽  
Air Flow ◽  
Air Gap ◽  
Double Skin ◽  
Double Skin Facades ◽  
New Buildings

Double skin facades very popular in this time. They are applied for construction of new buildings and for reconstruction. This paper to try to consider the main problems which appear during the work with the double skin facades. In paper are presented dependence of average velocity of air flow as functions from the geometrical sizes of the ventilated air gap of double skin facades and air output as functions from the geometrical sizes of air gap. This dependences are received experimentally. The received dependences can be used at design of double skin facades for the purpose of obtaining the optimum sizes of an air gap.

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