Speakers
Description
A helium liquefication process utilizing a turbine Brayton refrigerator instead of liquid nitrogen is proposed as the pre-cooling stage, and a thermodynamic system cycle flow is built up. Turbine Brayton refrigeration has the advantages of high efficiency, low maintenance costs, contact-free, and low noise. The closed-cycle Turbine Brayton refrigerator applied in the pre-cooling stage of helium liquefiers, the liquefication can avoid the continuous supply of liquid nitrogen and improve the adaptability of helium liquefiers. More importantly, we can adjust the motor’s speed to match the load and operating conditions. We utilize genetic algorithms for component optimization and conduct thermodynamic research on the system under design conditions. The results indicate that the proposed system has better cyclic performance and can provide a reference and basis for practical engineering applications.
| Submitters Country | China |
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