Image Thermal engines
Image Swirl-free on the move...
Image Cryogenic liquid piston pumps for cold liquefied gases like LIN, LOX, LHe, LH2, LNG, LAr
Image In-situ investigation concerning the swelling behaviour of polymer materials under elevated pressures and temperatures
Image High Capacity Pulse Tube Cooler
Image Air-water heat pumps
Image Brine (water)-water heat pump
Image 3D - Air flow sensor
Image Humidifier System for High-Purity Gases
Image Innovative Parahydrogen Generator Based on Magnets
Image Software for technical building equipment
Image Performance tests of condensing units
Image Non- invasive flow measurements
Image Filter Tests
Image Preformance measurements of heat exchangers
Image Behavior of multiphase cryogenic fluids

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Innovative Manufacturing Technologies for Cryosorption Systems

Euronorm, R&D

Sandra Tippmann

+49-351-4081-614

Vacuum Pumps for UHV and XHV

A cryosorption system is defined as a vacuum pump that captures gas on cryogenic surfaces (gas-binding vacuum pump). Thus pressures lower than 5-12 mbar are obtainable (realisation of UHV - ultrahigh vacuum and XHV - extremely high vacuum). Cryosorption systems rely on very good heat transfer performance. This is currently being achieved with a complex, cost-intensive and risky manufacturing process. Therefore the aim of this project is to develop a new manufacturing technology that does not have this disadvantage.

 

For this purpose, thermodynamically important variables, such as sorption heat and heat transfer resistance were determined mathematically. A test sample was developed and constructed based on these results.

After completion of the design the test sample will be produced.

In the further course of the R&D project a test stand will be set up on which the test sample can be measured. These measurements will be checked and validated in a CFD simulation. With the help of the CFD model, various simulations for future cryosorption systems can be carried out. For example cooling times for different activated carbon masses or the thermal performance under different conditions for the cooling medium can be determined using this method.

Finally the sample production (functional sample) of a cryosorption system made of stainless steel with a precisely defined heat transfer behaviour takes place. The functional model is measured in relation to the cooling performance and pressure loss of the cooling medium and the results obtained will be included into the creation of a process instruction for manufacturing future cryosorption systems.


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Further Projects

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Cryostats, Non-Metallic and Metallic

position indenpendent, highest endurance, tiltable for liquid helium and liquid nitrogen

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Calibration of Low Temperature Sensors

According to the comparative measurement method

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High Capacity Pulse Tube Cooler

for Cryogenic High-Power Applications

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Thermal engines

Power Generation from Waste Heat


Contact

Institut für Luft- und Kältetechnik - Gemeinnützige Gesellschaft mbH
Bertolt-Brecht-Allee 20, 01309 Dresden


Secretary to the Management

+49-351-4081-520

+49-351-4081-525

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