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Activity

  • Are changes in pipeline pressure affecting your loop?

    Gregory K McMillan
    In the ISA Automation Week Mentor Program, I am providing guidance for extremely talented individuals from Argentina, Brazil, Malaysia, Mexico, Saudi Arabia, and the USA. We will be sharing a question and the answers each week. If you would like to provide additional answers, please send them to Susan Colwell at ISA. The tenth question [...] Read the full text.

  • Updated Backup and Recovery Product Data Sheet

    Larry Griffin
    Protect your plant data with Backup and Recovery for your DeltaV system, AMS Suite, Syncade operation Management Suite and other critical folder, files and databases and recover this information if disaster strikes. (546KB PDF) Read the full text.

  • We Interrupt This Blog Post to Bring You This Important Blog Post

    Bruce Greenwald
    I've been back in Texas since October, getting acclimated to all things uniquely Texan, like great BBQ and killer margaritas. I’m also working on my Texas-speak (y’all). While I’m back in the live music capital of the world, I’m still not sure I’m ready to go out two-stepping, but I knew it was time to start blogging again. I was in the middle of putting together by my first blog post in over 4 months (the topic was…

  • Monitoring Turbine and Compressor Operation

    Terry Blevins
    In January I posted a series of four (4) blogs that addressed the implement of an on-line compressor efficiency calculation. The example for this series was a compressor for a refrigeration system that used R134a refrigerant. If you have a similar compressor application in your plant then the information provided in these blogs may act … Continue reading » Read the full text.

  • What are the best packed column temperature(s) for control?

    Gregory K McMillan
    In the ISA Automation Week Mentor Program, I am providing guidance for extremely talented individuals from Argentina, Brazil, Malaysia, Mexico, Saudi Arabia, and the USA. We will be sharing a question and the answers each week. If you would like to provide additional answers, please send them to Susan Colwell at ISA. The ninth question [...] Read the full text.

  • Teaching the 9025 Class – Costa Rica

    Terry Blevins
    The week of January 8th, 2012 I traveled to our office in Costa Rica to teach the 9025 class. This class was created last year by Emerson’s education department to provide training on the basics of process control and instrumentation. The lecture material and student workshops included in the class are based on the book … Continue reading » Read the full text.

  • Web Seminar: Key benefits of temperature control solutions – 22 February

    Gregory K McMillan
    Please join me for the Temperature Control Solutions Web Seminar – 22 February This comprehensive 90-minute Web seminar offers a concise summary of the most important aspects of temperature control solutions including the considerations in valve and measurement...

  • Web Seminar: Key benefits of pH control solutions – 15 February

    Gregory K McMillan
    Please join me for the pH Control Solutions Web Seminar scheduled on 15 February. This comprehensive 90-minute web seminar offers a concise summary of the most important aspects of pH control solutions including the latest developments in pH sensor and...

  • What is the effect of the pump on control valves at lower rates?

    Gregory K McMillan
    In the ISA Automation Week Mentor Program I am providing guidance for extremely talented individuals from Argentina, Brazil, Malaysia, Mexico, Saudi Arabia, and the USA. We will be sharing a question and the answers each week. If you would like to provide...

  • Centrifugal Compressor Efficiency – Part 4

    Terry Blevins
    Part 1 of the centrifugal compressor efficiency series addressed the measurements and parameters that must be calculated to determine compressor efficiency. In Part 2-3 of this series we examined one way of calculating the enthalpy and entropy of the gas stream at the compressor suction and discharge and isentropic enthalpy for the refrigerant R134a. Once … Continue reading » Read the full text.

  • Radar Love

    Gregory K McMillan
    Control Talk Editors McMillan & Weiner ask Industrial Measurement Device Expert Ram Ramachandran to Talk about the Use of Radar and Its Dramatic Increase on the Plant Floor Read the full text.

  • What are the opportunities in distillation and reactor control modernization projects?

    Gregory K McMillan
    In the ISA Automation Week Mentor Program, I am providing guidance for extremely talented individuals from Argentina, Brazil, Malaysia, Mexico, Saudi Arabia, and the USA. We will be sharing a question and the answers each week. If you would like to provide...

  • Compressor Surge and Stall Detection and Prevention

    Gregory K McMillan
    A compressor going into stall is like jumping off a cliff with a bungee cord. If the bungee cord has no losses to dampen the oscillation, we have something akin to surge. A 0.5% drop in efficiency can occur for each surge cycle. Several surge cycles can occur due to delays and lags in high … Continue reading » Read the full text.

  • Centrifugal Compressor Efficiency – Part 3

    Terry Blevins
    Part 1 of the centrifugal compressor efficiency series addressed the measurements and parameters that are used to calculate compressor efficiency. In Part 2 of this series we examine how these measurements are used to calculate the enthalpy of the gas stream at the compressor suction and discharged for the refrigerant R134a. This calculation utilized bilinear … Continue reading » Read the full text.

  • What is an automation migration project best path forward?

    Gregory K McMillan
    In the ISA Automation Week Mentor Program, I am providing guidance for extremely talented individuals from Argentina, Brazil, Malaysia, Mexico, Saudi Arabia, and the USA. We will be sharing a question and the answers each week. If you would like to provide...

  • Updated S-series IS Electronic Marshalling Product Data Sheet

    Larry Griffin
    The addition of Intrinsically Safe (IS) CHARMs provides significant savings in system design, installation cost and ease of maintenance expected with Electronic Marshalling. (1MB PDF) Read the full text.

  • How to Succeed – Part 10

    Gregory K McMillan
    We conclude with a summary on how you can avoid bursts of oscillations, get to setpoint faster, choose the right execution time and filter, coordinate the speed of loops, optimize operations without while protecting equipment, provide a consistent flow response for model predictive control, eliminate limit cycles, and improve analyzer and wireless control loops (all … Continue reading » Read the full text.

  • Updated DeltaV Workstation Hardware Product Data Sheet

    Larry Griffin
    The selection of DeltaV workstation hardware provides the performance you need to engineer your control strategy and operate your process. This data sheet is applicable for version v11.3, v11.3.1, and v10.3 and earlier. (260KB PDF) Read the full text...

  • Centrifugal Compressor Efficiency – Part 2

    Terry Blevins
    As addressed in Part 1 of the centrifugal compressor efficiency series, the enthalpy of the gas stream at the compressor suction and discharge must be known to determine the compressor efficiency. Also, the isentropic enthalpy must be determined based on the gas stream entropy at the compressor suction and the compressor discharge pressure. These properties … Continue reading » Read the full text.

  • What is the best way to document the control system?

    Gregory K McMillan
    In the ISA Automation Week Mentor Program, I am providing guidance for extremely talented individuals from Argentina, Brazil, Malaysia, Mexico, Saudi Arabia, and the USA. We will be sharing a question and the answers each week. If you would like to provide...

  • How to Succeed – Part 9

    Gregory K McMillan
    To support the check list in part 8 to get the most out of your PID, we offer some of the considerations in the use of PID features. The number of PID options and parameters can seem overwhelming at first. Hopefully the knowledge gained here will foster an appreciation of the flexibility and capability leading to a … Continue reading » Read the full text.

  • Gas Chromatographs Rule

    Gregory K McMillan
    What Comes First�the Analyzer or the Analyzer Application? Read the full text.

  • Centrifugal Compressor Efficiency – Part 1

    Terry Blevins
    Centrifugal compressors play an important role within the process industry. In some cases compressor capacity may determine the throughput of a plant. If a compressor is used for refrigeration then any variation in compressor operation may directly impact the temperature control in key unit operations such as flash vessels and exothermic reactors. Also, the compressor … Continue reading » Read the full text.

  • How to Succeed – Part 8

    Gregory K McMillan
    The missing piece for success is the center piece of the loop, the PID controller. There is an incredible offering of PID features and options. To help utilize the full potential of the PID, here is a check list as a guide. While the full aspects of the PID capability are book worthy, the following … Continue reading » Read the full text.

  • Field Device Integration (FDI)

    Terry Blevins
    In June, 2100 the International Electrotechnical Commission (IEC)  distributed a new project proposal 65E/199/NP, Devices and integration in enterprise systems; Field Device Integration (FDI) – Part 1 to 7. Voting on this proposal was completed in October, 2011 and the new project was approved. Within IEC the SC65E WG7 committee will address converting the draft FDI … Continue reading » Read the full text.

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