Process Engineering White Papers

281-300 of 332 < first | | | last >
  • How to control a process with long dead time

    A process with a large dead time presents a special challenge for a controller --  any controller. This short paper explains how to get the best control of large dead time processes.

    ExperTune
    01/11/2005
  • Theory and practice of pH measurement

    This 43-page guide covers the basic mechanism of pH measurement, the structure of the sensor and its fundamental limitations, and also provides installation, maintenance and troubleshooting guidance.

    Rosemount Analytical
    01/04/2005
  • Level measurement of bulk solids and powders

    This 26-page white paper from Monitor Technologies discusses the difficulties in measuring bulk solids and powders in bins, silos and hoppers.  Download this document to learn which technologies are out there that can make this job easier.

    Monitor Technologies
    01/03/2005
  • Tracing the accuracy of calibration gases

    Calibrating your instruments using specialty gas will only yield results as accurate as your gas mixture. This three-page white paper discusses analytic traceability and how it relates to gas mixture accuracy.

    12/29/2004
  • Understand the hazards of flammable liquid spills

    This short paper discusses the risks of flash fires and pool fires from spills of flammable liquids, preventative measures, as well as how to avoid hazards during the clean up of such spills.

    Chilworth Technology
    12/09/2004
  • 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.

    ioMosaic
    12/03/2004
  • Continuous PHA Revalidation

    A process hazard analysis must be revalidated every five years. This paper discusses the merits of a new approach aimed at increasing the effectiveness of PHAs, called Continuous PHA revalidation.

    12/03/2004
  • 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.

    ioMosaic
    12/02/2004
  • Security Vulnerability Analysis

    Plant security is a key priority at many plants. This 10-page paper provides background what the methodology for a plant vulnerability analysis involves. It covers topics such as how to get started, available tools, and risk assessment.

    12/02/2004
  • Relief Design for Reactive Systems – Get the Facts

    This 15-page paper focuses on the additional degrees of complexity that reactive systems pose for emergency relief systems. It covers topics such as how to screen for reactivity and what practices, standards and regulations should be followed, as well as a host of other issues.

    12/02/2004
  • 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.

    ExperTune
    11/19/2004
  • How to Choose a Vacuum Dryer

    Vacuum drying can be applied in a range of processes in several industries, including chemical, pharmaceutical, food, plastics, and metal powders. This article first discusses vacuum drying benefits and limitations and dryer components and operation, then explains the differences between tumble and agitated vacuum dryers and how you can select one for your application.

    11/19/2004
  • Understand Pump Lifecycle Costs

    This 22-page paper from the Dept. of Energy, Hydraulic Institute and Europump explains the importance of understanding the total costs of ownership to achieve savings in energy, and operational and maintenance costs. It discusses what lifecycle cost is, what should be considered in a lifecycle cost analysis, and the role of proper pump system design.

    11/08/2004
  • 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?

    ioMosaic
    10/22/2004
  • Risk-Based Process Safety Design

    Safe design has long been a priority in the process industries. A safe design basis, together with a formal safety management system and safety practices, procedures, and training, is critical for providing that level of confidence required for risk management. The goal of process safety management is to consistently reduce risk to a level that can be tolerated by all concerned. A systematic, risk-based approach to safety design can help eliminate hazards that pose intolerable risk from the process and mitigate the potential consequences of hazards.

    10/22/2004
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