Actual Discharge on Venturimeter - A Literature

2021 ◽  
pp. 1-4
Author(s):  
Amit Rakshit ◽  
Sumana Ghosh
Keyword(s):  
Automotive Industry ◽  
Air Distribution ◽  
Flow Lines ◽  
Discharge Coefficients ◽  
Working Principle ◽  
Set Up

Venturi meter is a device which is used for measuring the rate of flow of fluid flowing through the pipes. The applications of these are found in various fields like Water House Department, Aviation, Automotive, Chemical, Petro-chemical industries, etc. In automotive industry venturimeter is used to measure the fuel and air distribution in carburetor. Similarly, in the water houses, venturimeter device is used to calculate the velocity of flow in the pipelines [1]. In this paper we have to discuss about the working principle and set up the study of experimental calculations on venturimeter. In the present paper, an attempt was made to study a computational device of a venturimeter, which can be used as an efficient and easy means for predicting the discharge coefficients for the flow lines. Keywords: Venturi meter; Discharge; Heads; Co-efficient of Discharge

scholarly journals Experimental and Numerical Study of a Thermal Expansion Gyroscope for Different Gases

Sensors ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 360 ◽  
Author(s):  
Guillaume Kock ◽  
Philippe Combette ◽  
Marwan Tedjini ◽  
Markus Schneider ◽  
Caroline Gauthier-Blum ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Gas Flow ◽  
Numerical Study ◽  
Rotational Velocity ◽  
Measurement Range ◽  
Gas Temperature ◽  
Hot Air ◽  
Working Principle ◽  
Set Up ◽  
Different Gases

A new single-axis gas thermal gyroscope without proof mass is presented in this paper. The device was designed, manufactured and experimentally characterized. The obtained results were compared to numerical simulation. The working principle of the gyroscope is based on the deflection of a laminar gas flow caused by the Coriolis effect. A bidirectional hot air flow is generated by alternating activation of two suspended resistive micro-heaters. The heated gas is encapsulated in a semi-open cavity and the gas expands primarily inside the cavity. The thermal expansion gyroscope has a simple structure. Indeed, the device is composed of a micromachined cavity on which three bridges are suspended. The central bridge is electrically separated into two segments enabling to set up two heaters which may be supplied independently from each other. The two other bridges, placed symmetrically on each side of the central bridge, are equipped with temperature detectors which measure variations in gas temperature. The differential temperature depends on the rotational velocity applied to the system. Various parameters such as the heating duty cycle, the type of the gas and the power injected into the heaters have been studied to define the optimal working conditions required to obtain the highest level of sensitivity over a measurement range of around 1000°/s. The robustness of the device has also been tested and validated for a shock resistance of 10,000 g for a duration of 400 µs.

Research on Deep Drawing with Multi-Point Variable Blank-Holder Force Controlling by Computer

2012 ◽  
Vol 472-475 ◽  
pp. 645-648
Author(s):  
Ming Ming Ding ◽  
Yong Huang ◽  
Yu Qing Shi
Keyword(s):  
Deep Drawing ◽  
Low Cost ◽  
Hydraulic Press ◽  
Blank Holder Force ◽  
Blank Holder ◽  
Variable Blank Holder Force ◽  
Blank Holding Force ◽  
Working Principle ◽  
Cylindrical Cup ◽  
Set Up

On the basses of analyzing the defects of variable blank holder force hydraulic press on construction and its rigid being not enough,the realization of designing method,working principle,hydraulic and system for ne controlling w type upper multi-point deep drawing with variable blank—holding force controlled by computer was introduced.In order to verify the effect of application of this set up,the testing results of deep drawing a rectangular box and a cylindrical cup formed component was presented. The results show that the equipment has low cost, general in using and optimal efficient of controlling.

Mathematical Analysis on a Special Adsorption Refrigeration System Suitable for Solar Energy System

2014 ◽  
Vol 953-954 ◽  
pp. 119-122
Author(s):  
Yan Ling Liu ◽  
Xue Zeng Shi ◽  
Yuan Yu
Keyword(s):  
System Performance ◽  
Energy System ◽  
Cooling Capacity ◽  
Refrigeration System ◽  
Adsorption Refrigeration ◽  
Study Results ◽  
Actual Use ◽  
Working Principle ◽  
Set Up ◽  
New System

s. In this paper, a new adsorption refrigeration system is designed and calculated. In this system, there are two beds, two condensers and two evaporators. The working principle is explained and specified in this paper. And mathematical models are also set up and through calculation, the system performance is analyzed and evaluated.Theory study results demonstrate that the new system nearly has the same cooling capacity as conventional system and this kind of system can be adopted in actual use.

A Research of Apparatus and Optimal-Control Theory on Precision Seeding in Forestry

2010 ◽  
Vol 34-35 ◽  
pp. 869-873 ◽  
Author(s):  
Guang Hui Lv ◽  
Jin Hao Liu ◽  
Dian Wang ◽  
Nai Kang Wang
Keyword(s):  
Optimal Control ◽  
Control Theory ◽  
Optimal Control Theory ◽  
General Structure ◽  
Technical Regulation ◽  
Axial Pressure ◽  
Damage Rate ◽  
Test Conditions ◽  
Working Principle ◽  
Set Up

After analyzing and studying the existing sowing operation in forestry, a set of technological process of precision seeding based on optimal-control theory has been put forward and the prototype has also been designed and produced. This paper presents the general structure of the apparatus and analyses the working principle. An adjustable cell wheel feeding apparatus is designed to solve the problem of the uniformity of seeding. The theories of cooling mulching without adhesive on nutrition membrane and the process of membrane mulching are analyzed to set up the pressure model of the roll. After the experiments on the pressure of the roll and the analysis of the data, by the calculation of axial pressure transfer coefficient of the roll, has determined the best pressure of membrane mulching. At last, the test conditions of the prototype show that the frequency of failures is decreased, the damage rate of seeds is reduced, the seeding precision is improved, which satisfy the requirements of technical regulation on seeding in forestry and is beneficial to improve utilization ratio of good seeds.

The Design and Analysis of Mast of Fixed Window-Cleaning Based on ANSYS

2013 ◽  
Vol 791-793 ◽  
pp. 774-777
Author(s):  
Ping Huai Mao ◽  
Li Ding ◽  
Jing Xi Li
Keyword(s):  
Working Condition ◽  
Rapid Development ◽  
Design Methods ◽  
Working Principle ◽  
Set Up

Recently, with the rapid development of the window-cleaning, we need set up a scientific design and renovation method. This paper based on the working principle of fixed window-cleaning, we deduced the design methods of the mast when its parameters changed followed the variation of the working condition. Then, we ensured the most dangerous working condition. And in this condition, we made an analysis of the mast based on ANSYS and found out the regularities of distribution of the stress. At last, it could provide worthy reference for the design of mast.

Increasing the Automation Degree in Wiring Harness Assembly by Extending the Standard Crimping Machines by Developed Assembly Concept

2017 ◽  
Vol 871 ◽  
pp. 262-266
Author(s):  
Paul Heisler ◽  
Stefan Hoessle ◽  
Jörg Franke
Keyword(s):  
Automotive Industry ◽  
Production Efficiency ◽  
Automated Assembly ◽  
Manual Assembly ◽  
Wiring Harness ◽  
Competitive Systems ◽  
Level Of Automation ◽  
Labour Costs ◽  
Set Up ◽  
Harness Assembly

In the automotive industry, the assembly of wiring harnesses is done mostly manually. This leads to high labour costs as well as a high number of defects. In order to minimize these disadvantages, both industry and research made huge efforts in recent decades to increase the level of automation in the assembly of wiring harness modules. The fully automated crimping and blockloading machine e.g. Komax Zeta 656, is already successfully used in the industry as a machine for the automated assembly of small wiring harnesses. But still, there is a great potential to increase efficiency and quality in the assembly of wiring harnesses. This paper presents a newly developed machine concept for the fully automated assembly of wiring harnesses. It is shown that the new system can provide higher production efficiency compared to both the competitive systems and manual assembly. The presented concept also helps saving resources as it uses the standard crimping machine as e.g. Komax Alpha 355 as a basis which is already present in many wiring harness factories. To set up the presented mounting machine the Komax Alpha has not to be fully replaced, but only to be extended by a few components.

scholarly journals Analytical Solution and Experimental Validation of the Electromagnetic Field in an IPT System

2019 ◽  
Vol 9 (7) ◽  
pp. 1323
Author(s):  
Kehan Zhang ◽  
Xin Ren ◽  
Yuan Liu ◽  
Shuting Hui ◽  
Baowei Song
Keyword(s):  
Electromagnetic Field ◽  
Analytical Solution ◽  
Secondary Coil ◽  
Induced Voltage ◽  
Inductive Power Transfer ◽  
Finite Element Software ◽  
Working Principle ◽  
Simulation Results ◽  
Set Up ◽  
Good Agreement

This paper introduces the working principle of the inductive power transfer (IPT) system from the perspective of the electromagnetic field. Using Maxwell’s equations, the analytical solution for the electromagnetic field, synthesized by the primary and secondary circular coils in an IPT system, is deduced in detail to obtain the electric field in the IPT system, and the derivation process is easy to understand for researchers engaged in IPT. The final solutions are obtained by combining analytical derivation and the numerical integration method to find the induced voltage in the secondary coil. Finally, by comparison, the simulation results from the finite element software are in a good agreement with those from the analytical analysis. Moreover, an IPT system is set up to validate the analytical and simulation results, and the maximal relative error is under 6% in different working conditions, which shows that it is feasible to understand the working principle of IPT systems from the viewpoint of the electromagnetic field.

Dynamic Performance Measurement and Modeling for a Prototype Accessory Drive System with Three Pulleys and One Tensioner

2013 ◽  
Vol 318 ◽  
pp. 200-206
Author(s):  
Hong Yun Wang ◽  
Ji Yong Zhao ◽  
Wen Bin Shangguan
Keyword(s):  
Experimental Data ◽  
Experimental Investigation ◽  
Performance Measurement ◽  
Automotive Industry ◽  
Dynamic Performance ◽  
Radial Force ◽  
Drive System ◽  
Modeling Methods ◽  
Drive Systems ◽  
Set Up

Accessory drive systems with tensioner have been wildly used in the automotive industry to drive accessories. At first, an experimental investigation of dynamic performance for a prototype accessory drive system (including one driving pulley, one driven pulley and one tensioner) is conducted. The experimental set-up is introduced in detail. The driven pulley speeds, radial force of tensioner pulley hub, transverse placement of belt span and angular placement of tensioner arm are measured with driving pulley speeds. It is analyzed that the influence of the speeds and vibration amplitudes of driving pulley on the dynamic performance. At last, the modeling methods for accessory drive system produced in previous studying by author are validated by comparing with experimental data.

Modeling and Simulation of Freshwater Generator Subsystem of Low Speed Engine Room Simulator Based on Visual

2012 ◽  
Vol 557-559 ◽  
pp. 2324-2328
Author(s):  
Qian Ming Shang
Keyword(s):  
3D Models ◽  
Time Variable ◽  
Practical Situation ◽  
Generator System ◽  
System A ◽  
Working Principle ◽  
Network Communications ◽  
Sustainable System ◽  
Set Up ◽  
Speed Engine

3d models of the equipments of freshwater generator system are built according to the real ship. In support of a simulative sustainable system, a real-time variable database and mathematical models of the subsystem are set up. Then the precision of the models are proved to meet the demands by comparing the simulation results with the practical situation. The interfaces are available by making use of VC++6.0. Finally, the data connections between the math models and interfaces are established by means of the technology of network communications. The purpose of developing this simulation system is training, which offers students a chance to make a good knowledge of the structure and working principle of the freshwater generator subsystem.

The Optimization Design of the Pressure Foot Mechanism in a Single-Sheet Feeder

2010 ◽  
Vol 156-157 ◽  
pp. 1203-1206
Author(s):  
Xiang Dong Shi ◽  
Shao Hua Shen ◽  
Yi Ming Wang
Keyword(s):  
Mathematical Model ◽  
Optimization Design ◽  
Object Function ◽  
The Real ◽  
Minimum Deviation ◽  
Cam Mechanism ◽  
Real Locus ◽  
Single Sheet ◽  
Working Principle ◽  
Set Up

Based on the analysis of the working principle of the pressure foot (the cam- linkage compound mechanism) in a single-sheet feeder, using VB to develop the design of cam mechanism, a mathematical model of optimization design is set-up in which the object function is the minimum deviation between the real locus of the pressure foot and the required locus. The resolving method for this model is also studied with one real example. It is practically valuable.

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