Development of a S-FLOW System and Control (S‑FLOW: Energy Saving Air Flow Control System)

2013 ◽  
Author(s):  
Koichi Tabei ◽  
Masashi Watanabe ◽  
Nobuyuki Doi ◽  
Kenjiro Imai ◽  
Stefan Young
Keyword(s):  
Control System ◽  
Flow Control ◽  
Energy Saving ◽  
Flow System ◽  
Air Flow ◽  
Flow Energy ◽  
Flow Control System ◽  
And Control ◽  
Air Flow Control

Object-Oriented Modeling of Intake Air Flow Control System

2001 ◽  
Author(s):  
T. Carlsson ◽  
A. Sokolov ◽  
A. Idebrant ◽  
M. Jirstrand
Keyword(s):  
Control System ◽  
Flow Control ◽  
Air Flow ◽  
Object Oriented ◽  
Flow Control System ◽  
Air Flow Control

Development of Air Flow Control System for Large-Scale Pre-Oxidation Furnace

2012 ◽  
Vol 542-543 ◽  
pp. 179-183
Author(s):  
Kuan Yu ◽  
Bo Zhu
Keyword(s):  
Control System ◽  
Flow Control ◽  
High Performance ◽  
Large Scale ◽  
Air Flow ◽  
Maximum Deviation ◽  
Cost Performance ◽  
Total Communication ◽  
Flow Control System ◽  
Air Flow Control

In this paper, we introduced a high cost performance design of air flow control system consisting of a programmable computer controller (PCC) and 72 inverters. PCC communicates with all the inverters using USS protocol via RS485 bus, and the real-time performance of USS communication was analyzed for this system. The commissioning and analysis show that the total communication cycle time of a subnet is less than 500ms and the maximum deviation of the inverter frequency is 0.01Hz. This system can meet the requirements of high performance carbon fiber production.

A Computer-Based Air Flow Control System for Aerosol and Filtration Research

2015 ◽  
Vol 771 ◽  
pp. 137-140 ◽  
Author(s):  
Muhammad Miftahul Munir ◽  
Muhammad Sainal Abidin ◽  
Abdul Rajak ◽  
Khairurrijal
Keyword(s):  
Control System ◽  
Flow Control ◽  
Flow Rate ◽  
Pulse Width Modulation ◽  
Air Flow ◽  
Flow Sensor ◽  
Air Filtration ◽  
Air Filter ◽  
Flow Control System ◽  
Air Flow Control

An airflow control system is one of important parts in the scanning mobility particle sizers system (SMPS) used in the field of aerosol and air filtration. In this paper, the air flow control system that consists of an air filter, a blower, an air flow sensor, a controller, and a computer are reported. A flow rate adjustment was performed by varying the rotation speed of the blower using a pulse width modulation (PWM) technique. The air flow sensor capable of measuring flow rate up to 20 liters / min was used to measure the air flow rate. In order to keep at a certain value of the flow rate, a proportional-integral-derivative (PID) control action was employed in which PID controller were manually tune. The results showed that the desired value of flow rate was quickly achieved with little overshoot was observed in the system output.

Compressed-air flow control system

Lab on a Chip ◽  
2011 ◽  
Vol 11 (4) ◽  
pp. 743-747 ◽  
Author(s):  
Ki Wan Bong ◽  
Stephen C. Chapin ◽  
Daniel C. Pregibon ◽  
David Baah ◽  
Tamara M. Floyd-Smith ◽  
...  
Keyword(s):  
Control System ◽  
Flow Control ◽  
Air Flow ◽  
Compressed Air ◽  
Flow Control System ◽  
Air Flow Control

Polymer Flow Control in Continuous Gravimetric Blenders

2013 ◽  
Author(s):  
Alberto L. Cologni ◽  
Simone Formentin ◽  
Fabio Previdi ◽  
Sergio M. Savaresi
Keyword(s):  
Control System ◽  
Flow Control ◽  
Plastic Flow ◽  
Flow Regulation ◽  
Polymer Extrusion ◽  
Polymer Flow ◽  
Flow Estimation ◽  
Simulation Results ◽  
Flow Control System ◽  
And Control

In this paper, the design of a plastic flow control system for continuous gravimetric blenders used in polymer extrusion processes is discussed. The considered plant is a blending machine that mixes four different polymers, bulks and additives. In order to pursue the desired behavior, three control objectives are considered: plastic flow estimation based on weight and screw speed measurements, plastic flow regulation for each meter and control of the recipe with mass constraints such that the mixer can always satisfy the plastic flow variation needed by the extruder. Simulation results are used to show the effectiveness of the proposed approach.

Design of Bulk Solid Flow Control System

2014 ◽  
Vol 898 ◽  
pp. 568-573
Author(s):  
Zhao Long Fan ◽  
Jian Hui Zhao ◽  
Fan Li ◽  
Sun Rong
Keyword(s):  
Control System ◽  
Flow Control ◽  
Control Mode ◽  
Embedded Operating System ◽  
Control Effect ◽  
Solid Flow ◽  
Stability And Control ◽  
Bulk Solid ◽  
Flow Control System ◽  
And Control

This paper introduced the hardware module, software process, and control mode and communication protocol of bulk solid flow control system based on the C8051F020. It selected the C8051F020 of transplanted uCos-II embedded operating system as the core, used the module software design idea, and realized the cooperation of collection, PID control, communication and other tasks. The industry site experiment showed that the system had good adaptability, stability and control effect, the control accuracy reached to ±1%FS, and the measuring accuracy reached to ±5.

Study on New Energy-Saving Excavator with Synthetic Positive Flow Control System

2013 ◽  
Vol 397-400 ◽  
pp. 241-247
Author(s):  
Hong Ji Zhang ◽  
Peng Fei Yu ◽  
Jian Zhuo Zhang
Keyword(s):  
Control System ◽  
Flow Control ◽  
Energy Saving ◽  
Transfer Functions ◽  
Design Method ◽  
Positive Control ◽  
Utilization Rate ◽  
Rotational Angle ◽  
Flow Control System ◽  
Power Curves

A new synthetic pilot pressure positive flow control system used in excavator was proposed in this paper, The mathematical models of this system and the positive control system were established, the transfer functions from the displacements of the regulating pressure springs to the operating cylinder piston, and the rotational angle of the right walking motor were deduced. The output power curves of these two control systems were acquired using AMEsim. The simulation results show that the synthesis pilot pressure positive flow control system is more stable and has higher power utilization rate to the traditional positive control system used in excavator. The new control system provides an new design method of energy-saving excavator control system.

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