Understand Heat-Transfer-Fluid Maximum Temperature Rating
Manufacturers of heat transfer fluids assign a maximum temperature rating to each fluid. This rating must be considered to ensure the safe and efficient operation of the fluid. This paper explains the basis of the rating, how fluids degrade, and how the temperature profile in a heat transfer system affects fluid performance and life.
Design the Heat-Transfer-System Expansion Tank Right
The design of the expansion tank plays an important role in the successful operation of a heat transfer system using organic fluids. It can contribute to longer fluid life and lower maintenance. This paper describes the proper sizing, piping and valving, instrumenting, and inerting of the tank.
Maximize Returns from Precious-Metal-Bearing Catalysts
Many catalytic reactions rely on platinum, palladium and other precious metal catalysts. When the activity of the catalyst declines to the point that it must be replaced, the used catalyst can be sent to a refiner to recover precious metal. This 8-page paper discusses the variouis factors that should be considered when using a refiner.
Major Manufacturer Integrates MatrikonOPC
A global manufacturing company needed to transfer data from their plant in Detroit, Michigan to a process data storage system in St. Paul, Minnesota. Their Control Systems Engineering Group chose OPC technology as the communication medium.
Facility Major Risk Survey
This 8-page primer describes a method for identification of major acute risks in existing process facilities that can potentially affect on-site and off-site populations and for prioritization of mitigation methods.
Why Process Safety Management Audits Fail
Most companies have completed at least three process safety management(PSM) compliance audits of their covered facilities since the promulgation of the OSHA PSM standard. These companies, however, are not seeing noticeable improvements in their PSM programs. In fact, many companies feel that their PSM programs have become less effective. What has happened and why? Are there any lessons learned from the Enron collapse and its auditing program? What needs to be done?
Management of Change or Change of Management?
Management of Change processes are subject to a variety of pitfalls. This paper highspots a variety of implementation issues that can frequently undermine the success of MOC processes.
Ziegler-Nichols Tuning Rules And Limitations
The standard reference for PID tuning seems to be the Ziegler-Nichols tuning rules developed in 1942 on a pneumatic controller. Here is how to tune a controller using these rules.
Layered Security in Plant Control Environments
Process control vendors are migrating plant control technologies to more open network and operating environments. This White Paper explains how layered security can be accomplished by adopting a "best practices" model, developing and implementing an access control plan, and compartmentalizing the network.
Nonwoven Fabric Filtration Media
This 6-page primer explains the various forms of nonwoven media, their special characteristics, as well as filter configurations and function. It discusses advantages and disadvantages, and application trends.
Edward C. Gregor
Selecting Transmitters for Safety Instrumented Systems
This paper presents best practices that allow the user to quantify the impact of real-world failure causes and to take credit for improvements in system design. Besides selection, it also covers installation and maintenance.
DuPont Fluoroproducts and Rosemount Inc
Succeed at Alarm Management
Today's control system make it easy to add alarms. The result has been a proliferation of alarms that can overwhelm an operator and actually obscure situations that really require immediate attention. This paper provides practical guidance on effective procedures that can significantly reduce nuisance alarms and improve operator effectiveness.
Properly Model and Control Batch Reactors
This paper covers key aspects for modeling and design of batch reactors, including: heat-up and cool-down performance, sensitivity analysis for reactor parameters, boil-up rate predictions, thermal stability under exothermic conditions, control system design and loop tuning parameters, condenser rating, and process emissions predictions.
Process Safety Management
This guide from the U. S. Occupational Safety and Health Administration covers pre-startup safety review, mechanical integrity, how-work permits, management of change, incident investigation, emergency planning and response and compliance audits, among other topics.
Properly Clean Organic Heat Transfer Fluid Systems
Maintaining peak performance of organic heat transfer fluids can require removal of dirt and pipe scale, oxidation, thermal degradation, and process contamination. This paper describes the appropriate cleaning techniques for dealing with solids; sludge, high-viscosity fluid and residues; process contamination; and hard coke.
Audit Your Materials Handling
This 5-page document discusses how to improve the return on investment by appropriate auditing of materials-handling operations.