Emerson Exchange 365
Blogs
    • 18 Aug 2017

    Selection Criteria in Compressor Anti-Surge Valves

    Some of the most consistently popular posts here on the blog involve compressor anti-surge control. It’s a condition in centrifugal and axial compressors where a flow reversal condition can occur. Wikipedia defines centrifugal compressor surge as: …the point at which the compressor cannot add enough energy to overcome the system resistance or backpressure. [26] This causes a rapid flow reversal (i.e., surge...
    • 4 Aug 2017

    Top-Entry Triple Offset Valves in LNG Applications

    The global natural gas market continues to develop as additional liquefied natural gas (LNG) facilities come online across the world. These LNG facilities have many challenges including equipment such as valves which come in contact directly with the cryogenic process . Considerations not only include fit for the application, but also how to safely and effectively perform any ongoing maintenance. Alberto Bertamoni...
    • 7 Jul 2017

    Safety Instrumented Function Valve Selection

    Valves are critical components inside of safety instrumented functions (SIFs) since they do the work of touching the process flows to bring the plant to a safe state in the event of a safety demand. In a Valve magazine article, How Valve Selection Can Impact SIS in Refining Applications , Emerson’s Janine McCormick describes the important criteria in finding the right valve for the required safety performance...
    • 5 Jul 2017

    Managing Natural Gas Distribution Networks Pressure and Flow Rates

    The role of natural gas in the global energy mix continues to expand as it displaces coal and nuclear power as a baseload source of energy for electrical power generation. It is also an energy source for heating and cooking in many homes. Emerson’s Sergio Pasquali describes the role of smart skids in the natural gas distribution network in this 3:32 YouTube video, The Solution for Tomorrow Energy Systems . It...
    • 23 Jun 2017

    Pressure Relief Valve Fugitive Emissions Testing

    Earlier this week, the Valve World Americas Expo & Conference convened in Houston, Texas. This gathering provides an opportunity for flow control industry professionals to share experiences, insights and to collaborate to resolve common challenges. Emerson’s Dr. Amr Gado , D. Emile Tezzo , and Calvin Deng prepared a presentation, Pressure Relief Valves Fugitive Emissions Testing which was given by Amr at...
    • 20 Jun 2017

    Reducing Storage Tank Thief Hatch Emissions

    Regulations on emissions for process manufacturers and producers have continued to grow ever stringent. Storage tanks in oil and gas production sites account for a sizable percentage of volatile organic compound (VOC) emissions. To address these regulations, you may have seen last week’s news, New ultra-tight thief hatch reduces storage tank emissions, conserves tank contents . I caught up with Emerson’s...
    • 3 May 2017

    5 Questions for Digital Valve Controller and Safety Expert Riyaz Ali

    Let’s continue our 5 Questions for an Emerson Expert podcast series with our guest, Riyaz Ali . You may recall Riyaz from numerous posts about digital valve controllers and final control elements in safety instrumented system applications. He has almost 40 years’ experience in process control instrumentation and holds numerous patents related to use of digital valve controllers for process industries. Please...
    • 28 Mar 2017

    Educational Video on Control Valve Cavitation

    Wikipedia defines cavitation as: …the formation of vapour cavities in a liquid – i.e. small liquid-free zones (“bubbles” or “voids”) – that are the consequence of forces acting upon the liquid. It usually occurs when a liquid is subjected to rapid changes of pressure that cause the formation of cavities where the pressure is relatively low. When subjected to higher pressure, the voids implode...
    • 27 Mar 2017

    Control Valve Condition Monitoring Connected Services

    As sensors and final control elements grow ever smarter with digital diagnostics and communications paths, the need to make sense of this data to improve safety, reliability and efficiency also grows. Not only is improved analytic software required to help spot trends and abnormalities, but also experts to help provide guidance to put this information into action. In this 5:07 video, Emerson Connected Services Valve...
    • 17 Feb 2017

    Optimizing Gas Turbine Fuel Gas Supply

    The mission of this blog has always been to bring the experts around Emerson to you. Many of these folks also share their expertise in our Emerson Exchange 365 global user community and with LinkedIn posts. I’ll highlight an example I saw today. Emerson’s Rossella Mimmi published a post, Gas Conditioning: Why, When and How . In it, she opens: Natural Gas has become the desired fuel for gas turbines...