Flow, level & control

Flow meter for demanding hydrogen applications

merson has introduced a new Micro Motion Coriolis flow meter designed for high-pressure hydrogen dispensing and chemical injection applications where measurement accuracy and safety are essential. The Micro Motion Coriolis HPC015 flow meter is capable of a flow accuracy margin of 0.5 per cent for gas and 0.1 per cent for liquid mass flow measurement, a significant improvement over existing meters. The meter performs under wide pressure and temperature fluctuations, ensuring security and reliability, while onboard diagnostic tools eliminate the need for pre-inspections or interim maintenance checks, saving time and money. The demand for hydrogen, an abundant and renewable energy source, is growing due to its use in fuel cells for low-emission vehicles, fertilisers, glass and metal production, as well as the energy sector. Hydrogen is stored at very high pressure – usually at around 963 bar (13,960 psi) – which creates challenges to find equipment to aid in producing, storing and dispensing the gas safely and effectively. “The HPC015 is an extremely accurate, safe and reliable solution to measure flow at high pressures,” says Tim Drost, senior Coriolis product marketing manager at Emerson. “It was


designed specifically to meet the challenges our customers face in the hydrogen fuel and chemical injection spaces.”

One of the main application uses for the HPC015 in accurately measuring the flow of hydrogen gas is to effectively manage costs in large-scale custody transfer applications, such as public transportation systems, where hydrogen fuels are used to power hybrid bus engines. A second, significant market for the HPC015 is in other high-pressure applications such as injecting methanol, corrosion inhibitors and other chemicals downhole at high pressure; an application that poses particular challenges. The HPC015 is designed to accurately and reliably dose chemicals at pressures up to 1,060 bar (15,374 psi) to ensure pipeline integrity and avoid events like plugging, which can halt production. In addition to safety concerns, offshore

platforms cannot afford to stand idle while waiting for a service call to troubleshoot an instrumentation problem, which in many instances requires an onsite visit by a technician. Space is at a premium on offshore platforms, which makes the small footprint of the HPC015 ideally suited, and when combined with the Smart Meter Verification capability of the HPC015, a facility can run meter diagnostics and

meet regulatory standards without needing to remove the meter from the process line. The HPC015 is offered in three pressure tiers – 482 bar (6,991 psi), 963 bar (13,960 psi), and 1,060 bar (15,374 psi), which offers added flexibility to setting the correct pressure range for each application.


section option for the CMA advanced mobile valve. With the capability to control two bidirectional services from one section – an industry first – the CMT valve section increases design flexibility and reduces CMA valve bank size, weight and overall system cost. Like the existing CMA mobile valve section, the new CMT section is software-configurable and features CAN communication, on-board sensors, digital flow-sharing and electronic load-sensing to provide precise flow control and high responsiveness. While the CMA section features independent metering, the CMT section utilises the twin-spool architecture to control two services instead of one. This can reduce the total number of sections needed in a valve bank by as much as 50 per cent, minimising valve-bank size and weight. CMT mobile valve sections are stackable with CMA sections, which increases the design flexibility of the CMA advanced mobile valve. Original equipment manufacturers (OEMs) can optimise the valve for all vehicle requirements by specifying sophisticated CMA sections for services that demand superior precision and control and streamlined CMT sections for standard machine functions. The availability of two stackable section options simplifies the use of the CMA valve on high-end and mid-range machines without parts proliferation, due to shared components and procedures. “The new CMT mobile valve section reduces overall system cost without sacrificing performance,” says Jiri Foukner, EMEA product manager, Advanced Mobile Valves, Eaton. “OEMs can merge the next-generation performance of CMA sections with value-oriented CMT sections to

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he power management company Eaton has announced the launch of the CMT mobile valve section, a streamlined new

create the optimal valve solution for new mobile machinery designs.” The CMA advanced mobile valve significantly improves machine

performance and operator productivity. Featuring on-board electronics and sophisticated software algorithms, the CMA valve can optimise for conditions such as oscillation and vibration to deliver better stability, controllability and fuel efficiency. The software-driven set-up eliminates hardware replacements and enables performance optimisation in minutes instead of months, speeding time to market.

Eaton October 2020 Instrumentation Monthly

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