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Research on energy saving of ultrasonic wave in the process of making sea-slurry ice

机译：Research on energy saving of ultrasonic wave in the process of making sea-slurry ice

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摘要

In order to reduce the energy consumption in the process of making sea-slurry ice, this research is based on the related theory of the promotion of solution crystallization by ultrasonic wave, and conducts an experimental study on the energy-saving effect of the process of making sea-slurry ice from seawater under the action of ultrasonic wave. The orthogonal experimental study was carried out on the production of sea-slurry ice from seawater solution by using ultrasonic waves of different frequencies under a specific power. The results show that the process of making sea-slurry ice with specific parameters (power/frequency) can increase the seawater crystallization speed and reduce the subcooling degree during seawater crystallization. When the experimental working condition is 33 kHz and 600 W, its overall performance is the best. Compared with the no ultrasonic condition its subcooling degree is effectively reduced by 8.6 degrees C, the preparation process time is shortened by 90 s, the average crystal size of sea-slurry ice is refine to 20 mu m, the actual energy consumption rate is effectively reduced by 40, and the evaporator temperature is risen to -5 degrees C.

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