Process Engineering White Papers

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  • Technology expands flowmeter capabilities, reduces costs

    Capacitance-type magnetic flowmeters have traditionally offered the advantage of having non-wetted electrodes and the ability to measure low conductivity fluids. However, they suffered from a sensitivity to flow noise and zero instability. Innovative technology overcomes these limitations and drives magnetic flowmeters into new areas of application, while reducing installed costs.

    Yokogawa
    07/18/2005
  • Bearing isolators 101

    A bearing isolator is a non-contact, non-wearing, permanent bearing protection device. It has a rotor and a stator, and the two are unitized, so that they don’t separate from one another while in use. Typically, the rotor turns with a rotating shaft, while the stator is pressed into a bearing housing. The two components interact to keep contamination out of the bearing enclosure and the lubricant in.

    Inpro
    05/17/2005
  • Fisher control valve handbook

    This 295-page PDF whitepaper is a control valve resource that has been consistently updated for 30 years. It contains vital information on control valve performance and latest technologies.

    Fisher
    04/04/2005
  • 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
  • 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
  • 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
  • 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
  • Design Guidelines for Distillation Columns in Fouling Service

    This 33-page paper discusses the wide variety of factors that can cause fouling and the impact of this fouling on the performance of a distillation column. It then provides details on practical methods for mitigating fouling, including equipment design, surface treatment, and use of additives.

    10/15/2004
  • Design Guidelines for Distillation Columns in Fouling Service

    This 33-page paper discusses the wide variety of factors that can cause fouling and the impact of this fouling on the performance of a distillation column. It then provides details on practical methods for mitigating fouling, including equipment design, surface treatment, and use of additives.

    10/15/2004
  • Achieve 21 CFR Part 11 Compliance

    This technical white paper discusses Yokogawa’s CENTUM CS 3000 R3 DCS (Distributed Control System) product and the extent of its compliance with Part 11 of Title 21 of the Code of Federal Regulations (21 CFR Part 11), the Electronic Records/Electronic Signatures Rule.

    10/12/2004
  • 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.

    Solutia
    10/11/2004
  • 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.

    D. Shook, PhD, P.Eng., Matrikon, Inc.
    10/11/2004
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