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Green Hydrogen Measurement with Coriolis Technology by Emerson

Here’s an article posted in Control Global.

According to the article,

Top management consulting experts for Bio-energy, EV, Solar, Green Hydrogen

  • Emerson’s Micro Motion Coriolis technology tackles green hydrogen measurement challenges
  • High-pressure Coriolis flow meters for hydrogen dispensing operations
  • HPC020 flow meter: Ideal solution for hydrogen dispensing and truck loading
  • Fully-welded assembly for hydrogen embrittlement resistance

What is Coriolis Flow Technology?

Coriolis flow technology relies on the Coriolis effect, where a vibrating tube is used to measure the mass flow rate of a fluid. As the fluid flows through the vibrating tube, it causes a phase shift in the oscillation, which can be measured to determine the mass flow rate. This method is highly accurate and can measure a wide range of fluid properties, making it suitable for various applications, including hydrogen production.

Process of Green Hydrogen Production

  1. Electrolysis: Green hydrogen is typically produced through the process of electrolysis, where water (H2O) is split into hydrogen (H2) and oxygen (O2) using electricity. This electricity is sourced from renewable energy sources like solar or wind power, ensuring that the hydrogen produced is environmentally friendly.
  2. Feedstock and Water: The feedstock for green hydrogen production is water. Electrolyzers use electricity to split water molecules into hydrogen and oxygen atoms. The equation representing this process is:
    • 2H2O(l) → 2H2(g) + O2(g)
  3. Hydrogen Separation: Once the hydrogen is produced, it needs to be separated from the oxygen and any remaining water vapor. This is typically done through processes like pressure swing adsorption (PSA) or membrane separation.
  4. Measurement with Coriolis Flow Technology: Emerson’s Coriolis flow meters are installed in the hydrogen production line to accurately measure the flow rate of hydrogen gas. These flow meters utilize the Coriolis effect to measure the mass flow rate of hydrogen, providing precise readings even in challenging conditions.

Advantages of Coriolis Flow Technology in Green Hydrogen Measurement

  1. Accuracy: Coriolis flow meters offer high accuracy in measuring mass flow rates, ensuring precise control over the production process.
  2. Wide Range: These meters can handle a wide range of flow rates, making them suitable for both large-scale industrial hydrogen production plants and smaller-scale applications.
  3. Reliability: Emerson’s Coriolis flow meters are known for their reliability and robustness, providing continuous and accurate measurements even in harsh operating environments.
  4. Real-time Monitoring: With advanced digital capabilities, these flow meters can provide real-time monitoring of hydrogen production, allowing operators to quickly detect any issues and optimize the process for maximum efficiency.

Specific Data Points and Informative Facts

  • Emerson’s Coriolis flow meters can achieve accuracies of up to 0.1% of the measured value, ensuring precise measurement of hydrogen flow rates.
  • These meters have a turndown ratio of up to 1000:1, meaning they can accurately measure flow rates from very low to very high values, offering flexibility in various operating conditions.
  • Coriolis flow technology is not affected by changes in temperature, pressure, or fluid properties, ensuring consistent and reliable measurements over time.
  • Emerson offers a range of Coriolis flow meters specifically designed for hydrogen applications, including models suitable for high-pressure and high-temperature environments.

By employing Emerson’s Coriolis flow technology for measuring green hydrogen production, operators can optimize their processes, ensure product quality, and contribute to the transition towards a more sustainable energy future.

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Narsi, a Director at EAI, Co-founded one of India's first climate tech consulting firm in 2008.

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Narsi works closely with senior and top management corporates and helps then devise strategy and go-to-market plans to benefit from the fast growing Indian Climate tech market.


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