Monitoring Hydrogen Sulfide for Personnel Safety

Deadly hydrogen sulfide (H₂S) can be present in industries such as oil & gas production and wastewater treatment. The Wikipedia Hydrogen Sulfide page highlights the danger:

Short-term, high-level exposure can induce immediate collapse, with loss of breathing and a high probability of death. If death does not occur, high exposure to hydrogen sulfide can lead to cortical pseudolaminar necrosis, degeneration of the basal ganglia and cerebral edema.[31] Although respiratory paralysis may be immediate, it can also be delayed up to 72 hours.[38]

Water Online: Avoiding The Deadly Legacy Of Hydrogen SulfideIn a Water Online article, Avoiding The Deadly Legacy Of Hydrogen Sulfide, Emerson’s Sean McLeskey is quoted:

“H₂S gas is naturally present and produced in wastewater treatment… It is found in raw sewage and throughout sludge processing stages, so it’s critical to monitor for the gas in sewers, sludge de-watering systems, anaerobic digesters, and wet/dry wells.”

As Sean indicates, continuous monitoring for H₂S is critical for personnel safety. Solutions: Continue Reading

Improving Energy Efficiency with IIoT

Think about an “Internet of Things” (IoT) device that you may use in your home life. It’s typically an ordinary device, such a thermostat, and made into an IoT device with communications and a visual interface to remotely view date & control actions from the device. For instance, my Emerson Sensi thermostats communicate through my home network and Internet to a Sensi app on my smart phone where I can monitor & control the temperature and other functions from anywhere.

In a Flow Control article, Industrial Internet of Things In Energy Management, Emerson’s Mark Menezes contrasts commercial IoT and the Industrial Internet of Things (IIoT). He then highlights examples of how IIoT devices and applications can improve energy efficiency and performance.

Unlike commercial IoT applications, IIoT must meet:  Continue Reading

Tips for Effective Ultrasonic Plastic Welding

Ultrasonic welding is:

…an industrial technique whereby high-frequency ultrasonic
acoustic vibrations are locally applied to workpieces being held together under pressure to create a solid-state weld. It is commonly used for plastics, and especially for joining dissimilar materials. In ultrasonic welding, there are no connective bolts, nails, soldering materials, or adhesives necessary to bind the materials together.

This technology goes back and was patented in the 1960s by two people, one of whom:

…was a lab manager at Branson Instruments where thin plastic films were welded into bags and tubes using ultrasonic probes.

Today, the Branson brand of material joining and cleaning solutions is part of Emerson.

In a Medical Design & Outsourcing article, 5 tips for ultrasonic plastic welding success, Emerson’s Tarick Walton and Mike Diker highlight considerations where ultrasonic welding technology is an effective solution.

The five considerations include:  Continue Reading

Minimizing Project Execution Risks for Complex Analytical Systems

Many manufacturers and producers require high-resolution analysis of liquid and process gas streams as an integral part of their production processes. A big challenge is in designing, engineering, installing, commissioning and supporting these complex analytical systems over their lifespans.

This 3-minute YouTube video, Rosemount Analytical Systems and Integration Services, highlights considerations to reduce project execution risks for the installation and commissioning of complex analytical systems.  Continue Reading

Edge and Cloud Computing Podcast

Control and Control Design magazine have a podcast series, Control Amplified, featuring thought leaders in the world of process control and automation.

Emerson's Peter ZornioIn their most recent podcast, Computing at the Edge, Executive Editor Jim Montague interview’s Emerson Chief Technology Officer, Peter Zornio, about the edge of process automation and control systems and how it’s changed from traditional distributed control. There is also a transcript of the interview in a post, Control Amplified: Computing on the edge.

Here are some of the points that Peter made in the interview. When asked if edge computing was just another name for distributed control, Peter explained:

Continue Reading