scholarly journals Development and Testing of a Block Hydrocyclone

Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1577
Author(s):  
Alexandr Repko ◽  
Milan Sága ◽  
Boris Sentyakov ◽  
Vladislav Sviatskii
Keyword(s):  
Experimental Data ◽  
Experimental Study ◽  
Reynolds Number ◽  
Mathematical Models ◽  
High Strength ◽  
Fluid Consumption ◽  
Fluid Filtration ◽  
Fluid Movement ◽  
First Time ◽  
Made In

The study aimed to theoretically substantiate the efficiency of liquid purification and obtain corroborating experimental data for a hydrocyclone, consisting of several blocks. Mathematical models of the process of hydrodynamic fluid filtration were developed with the use of screw swirlers. The obtained mathematical models characterize all the main processes of fluid movement in various zones of the functioning of the hydrocyclone. Formulas for calculating the structures of hydrocyclone blocks are included. A block for swirling the flow of the liquid to be cleaned has been made in the form of a three-way screw. For the first time, wear-resistant and high-strength plastic ZEDEX ZX-324 has been used as a material. An experimental study was conducted and the change in the Reynolds number and the coefficient of fluid consumption was shown, using different constructions of the three-way screw. The research results confirmed the correctness and sufficiency of mathematical models for the development and production of block hydrocyclones.

The Stress Concentration Factor (Kt) and Fatigue Crack Behavior on the Relative Defect Location in Monolithic Aluminum versus GLARE

2006 ◽  
Vol 321-323 ◽  
pp. 952-956
Author(s):  
Cheol Woong Kim ◽  
Kwang Lae Kim ◽  
Won Pyung Lee ◽  
Sung Hyuk Lee ◽  
Seok Heo
Keyword(s):  
Experimental Study ◽  
Fatigue Crack ◽  
Stress Concentration ◽  
Stress Distribution ◽  
Crack Initiation ◽  
High Strength ◽  
Defect Location ◽  
Crack Behavior ◽  
Glass Fiber Reinforced ◽  
Made In

To analyze the stress distribution and the crack initiation due to the location of the defects, artificial defects were made on the different locations of the high strength monolithic Al and GLAss fiber REinforced laminate (GLARE). Experimental study shows that the defect location in the vicinity of the circular hole was changed from ° = 90 4 θ to ° = 0 1 θ , the stress concentration was increased. The stress concentration of GLARE was about 15% higher than that of the monolithic Al. When the defect was at ° = 30 2 θ , Multi Site Damage (MSD) crack was found in the monolithic Al but not in GLARE. Instead of MSD crack, a delamination was made in GLARE and that it resulted in the prevention against the second crack initiation.

An Experimental Study of Drill-String Vibration

1960 ◽  
Vol 82 (2) ◽  
pp. 129-135 ◽  
Author(s):  
I. Finnie ◽  
J. J. Bailey
Keyword(s):  
Experimental Study ◽  
Axial Force ◽  
Natural Frequencies ◽  
Drill String ◽  
Torsional Vibrations ◽  
Satisfactory Solution ◽  
String Vibration ◽  
Rotational Motions ◽  
First Time ◽  
Made In

This paper describes equipment which has been developed for the measurement of axial force, torque, and axial and rotational motions at the top of a drill string. Measurements made in two wells with this equipment represent the first time these quantities have been recorded during drilling. A large number of frequencies of vibration were found in the recordings. Some of these, particularly torsional readings, correlated with predicted natural frequencies, but many did not. Several explanations have been proposed for these “extraneous” frequencies, but no completely satisfactory solution is available. In addition, some interesting interrelations between axial and torsional vibrations were observed.

Improvement of Stamping by Rolling Processes of Pipe and Cylindrical Blades on Experimental Research

2020 ◽  
Vol 844 ◽  
pp. 168-181
Author(s):  
Andrii Shtuts ◽  
Mykola Kolisnyk ◽  
Andrii Vydmysh ◽  
Oleksandr Voznyak ◽  
Serhii Baraban ◽  
...  
Keyword(s):  
Experimental Data ◽  
Experimental Study ◽  
Mathematical Models ◽  
Experimental Research ◽  
Lateral Surface ◽  
Side Surface

During the experimental study, a pronounced beating and sealing of the side surface of the tubular, cylindrical blanks was recorded. It is established that cracks appear and develop in the central part of the lateral surface, i.e., it are destroyed. This fact confirms the claim that the destruction of tubular, cylindrical blanks of some materials begins on the side surface. It is established that the bases of analytical dependencies between the components of deformations describe the obtained results of the experimental study of SR tubular, cylindrical blanks within the error of the experimental data, which made it possible to construct a number of mathematical models for the purpose of further study of the SDS and the method of their determination.

EXPERIMENTAL STUDY OF THE KINEMATIC PARAMETERS OF MOVEMENT OF CARS FORCED IDLE MOTION

2018 ◽  
pp. 52-57
Author(s):  
Ivelin Kostov
Keyword(s):  
Experimental Data ◽  
Experimental Study ◽  
Experimental Research ◽  
Kinematic Parameters ◽  
Research Results ◽  
Software Product

In the work brought some experimental data of kinematic parameters of movement of cars forced idle, as the software product was used to diagnose 900 ATS, which recorded kinematic parameters of vehicle. On the basis of the conducted experimental research results are shown tabulated and analysed.

Integrating experimental data and mathematical models in simulation of physical systems

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 1787-1790
Author(s):  
Boris A. Zeldin ◽  
Andrew J. Meade
Keyword(s):  
Experimental Data ◽  
Mathematical Models ◽  
Physical Systems

Mosses and lichens of Shokalsky Island (Kara Sea, Yamal-Nenets Autonomous Area)

2020 ◽  
Vol 54 (2) ◽  
pp. 497-513 ◽  
Author(s):  
L. N. Beldiman ◽  
I. N. Urbanavichene ◽  
V. E. Fedosov ◽  
E. Yu. Kuzmina
Keyword(s):  
Plant Communities ◽  
Species Distribution ◽  
Arctic Tundra ◽  
Kara Sea ◽  
Lichenicolous Fungi ◽  
South West ◽  
West Part ◽  
First Time ◽  
Nenets Autonomous ◽  
Made In

We studied in detail a moss-lichen component of Shokalsky Island vegetation for the first time and identified 79 species of mosses and 54 species and 2 subspecies of lichens and lichenicolous fungi. All species of mosses and 23 species and 2 subspecies of lichens and lichenicolous fungi are recorded for the first time for the island. The study is based on collections made in South West part of the island, in arctic tundra. We also explored the participation of the mosses and lichens in the main types of plant communities and the species distribution in 10 ecotopes. The paper describes the noteworthy findings (Abrothallus parmeliarum, Aongstroemia longipes, Arthonia peltigerea, Caloplaca caesiorufella, Catillaria stereocaulorum, Ceratodon heterophyllus, Lecanora leptacinella, Sphagnum concinnum, S. olafii) and features of bryo- and lichenoflora of Shokalsky Island.

SCHMELZMETALL HOVADUR CCZ

Alloy Digest ◽  
2020 ◽  
Vol 69 (9) ◽  
Keyword(s):  
Thermal Conductivity ◽  
Spot Welding ◽  
Zirconium Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Softening Temperature ◽  
Aged Condition ◽  
Heat Treated ◽  
High Softening Temperature ◽  
Made In

Abstract Schmelzmetall Hovadur CCZ is a heat-treatable, copper-chromium-zirconium alloy. In the solution heat-treated and artificially aged condition, this alloy exhibits high thermal and electrical conductivity along with high strength and a high softening temperature. Hovadur CCZ evolved from CuCr1 (CW105C), a precipitation-hardenable alloy first made in the 1930s for spot welding electrodes, for which strength and hardness at temperatures up to 500 °C (930 °F), as well as good electrical and thermal conductivity, are essential. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: Cu-912. Producer or source: Schmelzmetall AG.

Sign in / Sign up

Export Citation Format

Share Document