Experimental Research of Impinging Spray with Basic Impinging Scheme

2013 ◽  
Vol 281 ◽  
pp. 351-354
Author(s):  
Lei Chen ◽  
Peng Song ◽  
Guo Kai Xu ◽  
Bao Guo Du ◽  
Wu Qiang Long
Keyword(s):  
High Pressure ◽  
Control System ◽  
Experimental System ◽  
Supply System ◽  
Distribution Area ◽  
Light Path ◽  
Path System ◽  
Visualization Experiments ◽  
And Control ◽  
Image Collection

Visualization experimental system of impinging spray including high-pressure vessel, oil supply system, light path system, image collection and treatment system and control system was designed, and the visualization experiments of basic impinging schemes of flat wall was carried out under existing conditions without laser. The effect of impinging distance on rebounding distance and diffusing area of dripping was analyzed. The results show that both of diffusing distance along the wall and distribution area linearly increased within a certain time under the same impinging distance. Both of diffusing distance along the wall and rebounding distance decreased with the increase in impinging distance.

Concept and principles of building an integrated system of management of activities of regional gas supply system entities Kaliningrad region

2019 ◽  
pp. 64-72
Author(s):  
G.G. Arunyants
Keyword(s):  
Control System ◽  
Natural Gas ◽  
Supply System ◽  
Integrated System ◽  
Software Complex ◽  
Geographically Distributed ◽  
Basic Solutions ◽  
Kaliningrad Region ◽  
And Control ◽  
Gas Supply

The results of analysis of problems of regulation of gas supply complex of Kaliningrad region and main ways to increase its efficiency, as well as basic solutions for creation of a software complex Т-GAZ-2 automated calculation of natural gas tariffs for ACS of gas supply system subjects, geographically distributed and information connected to the regional automated information and control system (RAIS).

Hardware Technology Research on Ultra-High Pressure Water Jet Ship Rust Control System Based on PLC

2013 ◽  
Vol 365-366 ◽  
pp. 812-816
Author(s):  
Ling Sun ◽  
Yong Jun Gong ◽  
Zeng Meng Zhang ◽  
Zu Wen Wang
Keyword(s):  
High Pressure ◽  
Control System ◽  
Frequency Control ◽  
Water Jet ◽  
Ultra High Pressure ◽  
Frequency Control System ◽  
Pressure Water ◽  
High Pressure Water Jet ◽  
And Control ◽  
Removal Technique

Ultra-high pressure water jet ship rust is one development direction of ship rust removal technique. In order to ensure the normal working of the system, how to control each equipment is the key-part of the design. This study presents the analytical research on hardware technology of the control system of ultra-high pressure water jet ship rust system, the analysis of the principle of frequency control system and circuit design and control circuit of PLC, by analysis the structure and principles of ultra-high pressure water jet rust, and then demonstrates through experimental test that the hardware electronic circuit works properly.

scholarly journals SELECTION OF THE LAYOUT OF THE MAIN SYSTEMS OF A HEAVY MULTICOPTER TAKING INTO ACCOUNT THE REQUIREMENTS OF AVIATION REGULATION

2021 ◽  
pp. 54-66
Author(s):  
Aleksey Trofimov ◽  
◽  
Sergej Postnikov ◽  
Keyword(s):  
Control System ◽  
Power Supply ◽  
Power Supply System ◽  
Urban Environments ◽  
Supply System ◽  
Large Cities ◽  
Thrust Generation ◽  
Transport Vehicle ◽  
And Control ◽  
Near Future

This article discusses the possibility of using a multicopter type aircraft as a transport vehicle in urban environments. This type of transport is the most promising in the near future, given the constantly growing number of traffic jams in large cities. The assessment of this aircraft is presented, taking into account the reliability requirements specified in the regulatory documents. The analysis of the aviation regulations requirements in terms of the aircraft systems reliability was carried out. Also the paper presents six options for the multicopter layout with a different number of propellers, taking into account the propeller control system, power supply system and control system. Other onboard systems are not considered, since their failures do not lead to an aircraft crash. An assessment of these options, taking into account the multicopter most critical onboard equipment layout according to reliability criterion by budgeting the requirements for one thrust generation channel, is given. Fault trees and failure situations that lead to a disastrous situation are also presented for each multicopter layout separately, as well as proposals for the number of independent channels for the power supply system and control system. Based on the set quantitative requirements for the occurrence of a catastrophic situation for the main on-board equipment and various layout options, taking into account the number of propellers and proposals for their architecture, power supply systems and control systems the most promising multicopter architecture options are determined. They meet the requirements for failure safety for a catastrophic situation.

High Pressure Turbocharger for Solid Oxide Fuel Cells

2006 ◽  
Author(s):  
Steven G. Berenyi
Keyword(s):  
High Pressure ◽  
Control System ◽  
Fuel Cell ◽  
Basic Structure ◽  
Cell System ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Efficient System ◽  
Current Test ◽  
And Control

Rolls-Royce has designed, built, and continues to test a high pressure (HP) turbocharging system specifically designed for a hybrid solid oxide fuel cell system being developed by Rolls-Royce Fuel Cell Systems, Ltd. This turbocharger is comprised of a two-spool machine with a shaft speed motor/generator on the low speed spool. Each spool contains a centrifugal compressor driven by a radial inflow turbine. The two spools run independently, but are physically close coupled for a smaller, more efficient system. The spools are mounted into a basic structure to provide structural rigidity, as well as sound and heat isolation. In its current test rig form, the system runs on oil lubricated bearings; is equipped with a liquid fueled slave combustor; and is controlled with a digital control system. Although never intended to be a “stand alone” microturbine — it is simply a high pressure turbocharger; if one wanted to — with a proper fuel and control system installed, it is capable of operation in such a stand alone mode. However, without heat recovery it would be a highly inefficient microturbine and therefore, was not considered in this application. Multiple units have been built and continue developmental testing. Initial matching to a fuel cell stack is scheduled for operation later in 2006.

Modeling and Control Technology of the Z-Source Inverter PV Grid-Connected System in the New Energy Equipment

2013 ◽  
Vol 724-725 ◽  
pp. 110-115
Author(s):  
Xiao Li Xu ◽  
Ling Xia Meng ◽  
Qiu Shuang Liu ◽  
Xi Bin Wang
Keyword(s):  
Control System ◽  
Tracking Control ◽  
Experimental System ◽  
Current Waveform ◽  
Modeling And Control ◽  
New Energy ◽  
And Control ◽  
Pv Grid ◽  
Zero Vector ◽  
Energy Equipment

Z-source inverter is the key part of the new energy equipment. A model of Z-source inverter has been built by using the State Space Average Overall Modeling method. It can achieve the linkage control of the direct zero vector d and modulation factor m. According to the model, a control system adopted MPPT tracking control and voltage & current double loop grid-connected control is designed to realize the coordinated control. SHEPWM modulation strategy is used to ensure that the grid current waveform quality. Z-source photovoltaic grid-connected experimental system has been designed and carried out, and the experimental results verify the validity and correctness of the control system.

The Key Technology Research for Vision Inspecting Instrument of Steel Ball Surface Defect

2008 ◽  
Vol 392-394 ◽  
pp. 816-820 ◽  
Author(s):  
P. Wang ◽  
Y.L. Zhao ◽  
Xian Li Liu ◽  
Yi Wen Wang
Keyword(s):  
Control System ◽  
Machine Vision ◽  
Design Method ◽  
Experimental System ◽  
Steel Ball ◽  
Control Technique ◽  
Performance Study ◽  
Industrial Processing ◽  
Ball Surface ◽  
And Control

It has been necessary to adopting automatic detection of steel ball based on machine vision in industrial processing. The detecting instrument for surface quality of steel ball based on machine vision and embedded control technique and is applied to detecting external bug region of steel ball in bearing. Its image detection and control system require excellent real-time character and high control accuracy. This paper put forward a new design for image processing and control system of detecting instrument. Firstly, we adopted OTSU segmentation arithmetic based on image enhancement and median filtering. As a result, steel ball was detected by area character parameter. Secondly, we adopted TMS320LF2407A as main processor and integrated CPLD to develop an embedded controller. It presents a novel optimal design method for PID controller based on the ant colony optimization (ACO) algorithm to optimize traditional PID control algorithm. At last, a performance study of experimental system is conducted and it shows that the proposed method can be used in online steel ball detection applications.

scholarly journals Analysis and Control of Slotless Self-Bearing Motor

Actuators ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 57
Author(s):  
Nguyen ◽  
Nguyen ◽  
Bui ◽  
Ueno ◽  
Nguyen
Keyword(s):  
Control System ◽  
Permanent Magnet ◽  
Control Method ◽  
Experimental System ◽  
Iron Core ◽  
Radial Pulse ◽  
Magnetic Forces ◽  
Measurement Results ◽  
And Control ◽  
The Magnetic Field

A self-bearing motor (SBM) is an electric motor with a magnetically integrated bearing function, that is, it can provide levitation and rotation simultaneously as a single actuator. This paper presents the design, operating principle and control system for the slotless self-bearing motor (SSBM). In this design, the stator has no iron core but includes six-phase coils. The rotor consists of a permanent magnet and an enclosed iron yoke. Magnetic forces generated by the interaction between stator currents and the magnetic field of the permanent magnet are used to control the rotational speed and radial position of the rotor. In this paper, the torque and radial bearing forces are analyzed theoretically with the aim to develop an improved control system. In order to confirm the proposed control method, an experimental system was constructed and tested. Simulation and measurement results show that the SSBM can work stably in modes such as start, reverse, rotation load and external radial pulse forces.

Design of Measurement and Control System for Medium and High Pressure Hydraulic Pump Test Platform Based on PXI Bus Structure

2012 ◽  
Vol 516-517 ◽  
pp. 876-882 ◽  
Author(s):  
Hui Huang ◽  
Shu Mei Chen
Keyword(s):  
High Pressure ◽  
Control System ◽  
Virtual Instrument ◽  
Hydraulic Pump ◽  
Measurement And Control System ◽  
Test Platform ◽  
Pump Test ◽  
Bus Structure ◽  
And Control ◽  
Measurement And Control

Based of PXI (PCI Extensions for Instrumentation) bus structure, a measurement and control system for medium and high pressure hydraulic pump test platform is designed in this paper. This system is comprehensive testing equipment which has adopted the traditional technologies include hydraulic, computer, virtual instrument and detecting. Its measurement and control system has introduced new techniques with combining PXI bus structure and relay, which can realize manual/automatic synchronical operation and one key operation. Use graphic language Lab VIEW 9.0 as its developing platform, the system realizes synchronically display of the mechanical instrument and the virtual instrument which has increased the test accuracy and speed.

Sign in / Sign up

Export Citation Format

Share Document