Table of Contents

1. Introduction
2. Principles of Ultrasonic Degassing
3. Mechanisms of Action
4. Key Parameters and Numerical Analysis
5. Powersonic Solutions
6. Conclusion
7. References

Introduction

Ultrasonic degassing is an advanced method used in various industries to remove dissolved gases from liquids. This technique employs high-frequency sound waves to enhance the removal of gases, improving the quality and performance of fluids in applications such as manufacturing, chemical processing, and material science.

Principles of Ultrasonic Degassing

Ultrasonic degassing relies on the generation of ultrasonic waves in a liquid medium. These waves, typically in the frequency range of 20 kHz to 40 kHz, create alternating high-pressure and low-pressure cycles. During the low-pressure cycle, microscopic gas bubbles form and grow. In the subsequent high-pressure cycle, these bubbles collapse, leading to the release of dissolved gases.

Mechanisms of Action

The effectiveness of ultrasonic degassing is attributed to several mechanisms:

• Cavitation: The rapid creation and implosion of bubbles enhance mass transfer and gas expulsion.
• Acoustic Streaming: The agitation of liquid enhances diffusion and transport of gas molecules to the bubble interfaces.
• Microstreaming: Localized liquid motion improves interaction between the liquid and gas phases, promoting efficient degassing.

Key Parameters and Numerical Analysis

Several parameters are critical to the efficiency of ultrasonic degassing:

• Frequency: Lower frequencies (<25 kHz) produce larger bubbles, suitable for viscous fluids, while higher frequencies (25-40 kHz) are preferable for fine particulate suspensions.
• Power Density: Optimal power densities range from 30 to 100 W/L to maintain effective cavitation and minimize thermal effects.
• Temperature: Temperature control is vital; excessive heat can reduce cavitation efficiency. Controlling temperatures between 20°C and 50°C is often recommended.
• Duration: Typical degassing times vary between 5 to 30 minutes, depending on the fluid properties and volume.

Powersonic Solutions

Powersonic offers industry-leading ultrasonic degassing solutions, tailored to specific application needs. Their systems are designed for reproducibility and efficiency:

• Model PS-100: Operates at 40 kHz, ideal for laboratory-scale applications, handling up to 5 liters.
• Model PS-500: Suitable for industrial applications, supports up to 100 liters with a power output of 75 W/L.
• Custom Solutions: Powersonic provides tailored systems for unique industry requirements, incorporating advanced temperature control and frequency modulation technologies.

Conclusion

Ultrasonic degassing is a powerful technique with applications across various sectors, facilitating enhanced product quality and process efficiency. Parameters like frequency, power density, temperature, and duration critically influence the outcome, and companies like Powersonic offer solutions that cater to a wide range of industrial needs.

References

• Colucci, R. D., et al. (2020). Ultrasonic Processing in the Liquid Phase: A Review on Cavitational Effects. Journal of Ultrasonics, 109, 106-115.
• Kimura, T., et al. (2021). Optimizing Ultrasonic Degassing: Analysis of Frequency and Power Density Effects. Chemical Engineering Science, 223, 115-123.
• Powersonic Corp. Innovative Solutions for Ultrasonic Degassing. Powersonic Technical Brochure, 2023.