process control system Articles
-
Addressing the shortfall in process control systems
There is a shortfall or imbalance between the steady increase in the complexity of process-related technologies, and the much slower rate of increase in the sophistication of process control systems. This paper explores two avenues along which this imbalance can be attacked. The first would more aggressively exploit opportunities for incremental instrumental improvements, while the second ...
-
Steps to Debug the Process Control System
From the current month's installment of Plant Engineering, we've solidified this eight-step plan intended to assist you with discovering and debugging your procedure control framework which can be developed and applied as time passes by. It initially begins with just a pencil and paper and with the assistance of some regularly accessible devices; you'll pick up the correct spotlight on a single ...
-
The Future Potential of Process Control Systems
Thanks to developments like Industry 4.0, digitisation, and the cloud, together with improvements in process control and communication technology, it is easier than ever to offer remote assistance and monitoring. The restrictions on travel and face-to-face working imposed the Coronavirus pandemic highlighted the benefits of remote commissioning to companies, many of whom are now looking to ...
-
Developments in electric actuation for process control
Actuators are among the most universal process control system elements used in today’s industrial processes. Advancements in DC motor technology which have removed restrictions on modulation rates have created a comprehensive market for electric actuation in new areas, where the benefits and economies associated with electrical operation have not been previously ...
By Rotork plc
-
Airnet® OPC Set Up Guide
Abstract Airnet® OPC provides data via an OPC Server. The server supports OPC Data Access Custom Interface Standard 2.05a. Information on the OPC specifications and standards can be found at http://www.opcfoundation.org/. These specifications and standards are essential for understanding how to use OPC. OPC (OLE for Process Control) is an industry standard created with the collaboration of ...
-
Mass flow measurement of Waelz oxide
Customer: Manufacturer of Waelz oxide (Germany) Material: Waelz oxide Quantity: Approx. 5 t/h Installation: In the pipe Function: Precise measurement of the flow rate Evaluation unit: DIN Rail Application Residual materials containing zinc are processed using the Waelz process method which utilizes a rotary kiln. Waelz oxide is the main recovered product from this process. Up to now, ...
By ENVEA
-
Automatic salt dosing in food manufacture - Case Study
Industry: Food Manufacture Material/Qty: Salt flow up to 200 kg/hr Installation: (In-line) transfer line Function: Flow Measurement of ingredient addition APPLICATION Salt is blown from a silo, via a sieve and rotary valve, into the process. The salt flow is determined by a recipe setting and the speed of the rotary valve is linked to the depth of the product on a ...
By ENVEA
-
ZE: 908 Acoustic Interface - The simple way to integrate noise measurements in industrial settings
The ZE: 908 allows users to add a noise measurement capability to an existing process control system. The ZE:908 is a small, lightweight power supply and acoustic conditioning unit for microphone preamplifiers, it is ideal as a front-end for data logging and analysis systems where a simple and accurate acoustic input is required as an interface between an acoustic transducer and a process ...
-
How Does an Electric Valve Actuator Work?
Electric valve actuators control the opening and closing of valves. They can provide either linear or rotary motion and work with different types of valves, including ball and butterfly valves. Electric valve actuators respond to prompts through remote control or centralized process control systems, which make them invaluable for managing systems that are hard to reach or spread across a large ...
-
Teron SL670e and Teron SL670e XP: EUV Reticle Quality Control
Extreme ultraviolet (EUV) lithography is a key technology inflection for the semiconductor industry. While shifting the scanner wavelength to EUV has enabled printing of the smaller pattern features required for ≤5nm design node chips, it has also added tremendous complexity to the equipment, reticles, resists and other infrastructure required to support EUV lithography. New defect mechanisms ...
-
Absolute Ozone History
Absolute Systems Inc. has a significant experience in R&D, industrial mechanical and electronic design, motion and process control systems fabrication, robotics, high tech, high precision systems fabrication, and assembly. Since 1995 developed and produced a whole range of high-efficiency ozone generators under the trade name Absolute Ozone. The Absolute Ozone Atlas Series ozone generator ...
-
Multivariate statistical monitoring of a continuous slab caster. Proceedings American Control Conference 2002
Abstract: Principal components analysis (PCA) is a multivariate statistical (MVS) technology that can be applied in process monitoring and fault diagnosis. Dofasco has developed on-line multivariate statistical process control (SPC) monitoring systems for both its #1 and #2 continuous casters (#1CC & #2CC) based on this technology. The paper introduces the reader to the basic process of steel ...
-
TurbEx® COOLING TOWER - Case Study
This article is about the case study of the TurbeEx® Cooling Tower in operation at a Huhtamaki U.S. pulp & paper facility. Commissioned in late Spring 2016 this TurbEx® COOLING TOWER cools process water at a Huhtamaki U.S. pulp & paper facility using TurboScrubber® fluidized packing to ensure continuous non-clogging operation even with sticky pulp & solids laden white ...
-
Why many control systems fail. Water Environment and Technology
Abstract: When implementing real-time process control systems at wastewater treatment plants (WWTPs), several technical problems may have to be addressed. Sensors have to be reliable. Controllers should be properly designed and tuned. Fault detection should be implemented and safety nets designed. Actuators must have adequate control authority to deal with changing influent quality and quantity. ...
-
Process Control Systems at Water Resource Recovery Facilities: Use of Process Simulation to Assist with Controller Design and Tuning. Proceedings ISA2017
Abstract: Process simulation is a useful tool to assist with control design and tuning at water resource recovery facilities (WRRFs). Simulation models serve as virtual WRRFs which can be used to design, tune, and test control systems. In addition, simulation models can be used as a basis for generating the models used in model-predictive control systems. Most WRRF simulation platforms provide ...
-
Nitrification processes in scrubbing liquid of an exhaust air treatment system of a large-scale pig housing facility
The use of multi-staged exhaust air treatment systems is an effective method of substantially reducing the emission of ammonia, dust particles and odorous substances. Wet filter walls are able to absorb large amounts of ammonia when scrubbing fluid containing sulphuric acid is used. In addition, due to their large surface areas and the permanent supply of oxygen and nutrients, wet filter walls ...
-
Largest Hofstetter Installation
Type HOFGAS®- LPM 7000 Commissioning 2003 Site Landfill Pinto (ES) SituationOne of the Europe’s largest landfill sites is located in the Pinto region, south of Madrid, where a modern waste treatment and energy recovery system is currently being developed. Urbaser S. A. is implementing a new plant for U.T.E. Planta R.S.U. Pinto. The works consists of two different divisions; waste ...
-
Aire-O2’s Cold Weather Legacy - Municipal Wastewater Treatment System - Dawson, MN - Case Study
Project Background Process control is key to maximizing wastewater treatment efficiency while minimizing operating costs. Implementing the right process control system in conjunction with the right equipment can save money on electrical costs and equipment maintenance. The wastewater plant for the city of Dawson, MN, uses a Tri-Oval oxidation ditch from Aire-02 for primary treatment of its ...
-
Effect of calcium oxide on the efficiency of ferrous ion oxidation and total iron precipitation during ferrous ion oxidation in simulated acid mine drainage treatment with inoculation of Acidithiobacillus ferrooxidans
Calcium oxide was added into ferrous ion oxidation system in the presence of Acidithiobacillus ferrooxidans at concentrations of 0–4.00 g/L. The pH, ferrous ion oxidation efficiency, total iron precipitation efficiency, and phase of the solid minerals harvested from different treatments were investigated during the ferrous ion oxidation process. In control check (CK) system, pH of the ...
-
The investigation of the sludge reduction efficiency and mechanisms in oxic–settling–anaerobic (OSA) process
This paper aims to provide a full understanding of the sludge reduction mechanisms in the oxic–settling–anaerobic (OSA) process and presents an evaluation of the sludge reduction efficiencies and sludge characteristics in this process compared to the conventional activated sludge process. Fifty-eight percent reduction in observed yield in the OSA process was achieved compared to the control ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you