37. Using PCs and the Internet for Fume Hood and Laboratory Air Flow Control System Performance Monitoring and Alarming, and Laboratory Energy Cost Billing

2003 ◽  
Author(s):  
S. Anderson ◽  
J. Rock
Keyword(s):  
Control System ◽  
Flow Control ◽  
Energy Cost ◽  
System Performance ◽  
Performance Monitoring ◽  
Air Flow ◽  
The Internet ◽  
Fume Hood ◽  
Flow Control System ◽  
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 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

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
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