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CSEM to develop 3D printed pipes with embedded sensors

These pipes, as part of the AHEAD project, will potentially open new avenues of fundamental research for CERN and the European space industry

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CSEM is coordinating a high-profile EU-funded project to enhance the performance of thermal control systems by developing 3D printed pipes with embedded sensors. In addition to potentially opening up new avenues of fundamental research for both CERN and the European space industry, these smart pipes could have uses in areas ranging from industrial heating and cooling systems to irrigation mechanisms for Industry 4.0. The project, Advanced Heat Exchange Devices (AHEAD), will reinforce Switzerland’s strengths in 3D printing and help anchor the country’s position at the forefront of innovation.

The project kicked off this summer and aims to revolutionize thermal control systems – critical components of several high-performance devices like satellites and space rockets. Most thermal control systems in use today are heavy, bulky, and require a myriad of connection cables. With AHEAD, the goal is to develop systems that are compact, less expensive, and wireless – allowing for real-time data collection and improved efficiency.

The project consortium, which consists of six partner organizations, intends to develop a new kind of 3D printed pipe with temperature sensors and heating elements embedded in the pipe’s inner surface. The system will also include an energy recovery device to power the embedded electronics and enable automatic, wireless data transfer.

CSEM to develop 3D printed pipes with embedded sensors as part of the AHEAD project, for CERN and the European space industry research.
3D printed metal pipe featuring pressure fittings, electrical feed trough, and Aerosol Jet Printed temperature sensor.

“Broadly speaking, we aim to develop technology bricks that can be used to integrate electronic components like cables, connectors, and sensors into many different kinds of 3D printed objects,” said Hervé Saudan, a project coordinator at CSEM. “The ability to embed sensors into process equipment will be an important feature of Industry 4.0. The data collected by these sensors can be used to feed artificial intelligence algorithms for process control, process optimization, and predictive maintenance.”

The consortium hopes to bring its technology to the pre-industrial stage and make it suitable for a broad range of applications including industrial heating and cooling systems, irrigation mechanisms, surgical instruments and implants, machine tooling, robotics, and automotive parts.

The two applications that the project engineers are currently targeting are space modules and the CERN’s new particle detectors.

CERN plans to use the sensor-equipped pipes in the thermal control systems for the silicon detectors its engineers are currently developing. The detectors will be used to identify particles released from a multitude of collisions. Thanks to the pipes being created under AHEAD, the detectors’ thermal control systems will be able to run without the complicated cable set-up that’s usually required – saving space and allowing for better thermal control through temperature readings taken directly at strategic points. The new technology will also let engineers replace existing coolants with ones that are more effective and less damaging to the environment.

CSEM to develop 3D printed pipes with embedded sensors as part of the AHEAD project, for CERN and the European space industry research.
3D printed metal pipe featuring pressure fittings, electrical feed trough, and Aerosol Jet Printed temperature sensor.

“Technological breakthroughs are often needed before particle detectors can deliver the extraordinary performance that’s expected of them,” said Paolo Petagna, a project manager at CERN. “These breakthroughs could lead to a totally new concept with applications well beyond the one originally intended, bringing benefits to important industries. That’s what we’re seeing with AHEAD.”

One of the project’s key partners – Thales Alenia Space (TAS) – is studying how the sensor-equipped pipes could be employed in the International Space Station’s pressurized modules and NASA’s future Lunar Gateway space station. TAS also plans to install the pipes in two-phase mechanically pumped fluid loops, which are a type of thermal control system used in its telecommunications satellites.

“The lighter, more compact design enabled by the pipes, along with improved precision in temperature measurements and faster assembly, are key benefits for us. They allow for better thermal control, which is a critical factor in all space systems. That gives us a significant competitive advantage over rivals in Europe and the US,” explained Martin Raynaud, a thermal specialist at TAS.

The AHEAD project is slated to last two years. It reflects Switzerland’s prominent position in innovation and its know-how in 3D printing technology. “Switzerland is the European country with the most 3D printing patent applications filed per capita,” said Hervé Saudan. “And Europe, in general, is at the top of this field. The number of patent applications has surged over the past few years, growing by 36% per annum between 2015 and 2018 according to a study by the European Patent Office. Today, Europe leads the ranking, ahead of China and the US. This trend is a real boon to the Swiss economy, as the country’s competitiveness and ability to attract skilled workers depend largely on its capacity for innovation.”

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