Energy associated with ultrasound cleaning

[lupok2001]

Hi everybody,

I am using a ultrasonic water bath cleaner in one of my experiments.

It is basically a container filled with water. Items which need cleaning are immersed and, when the machine starts, a transducer emits waves at a frequency of 35 kHz. The ultrasounds produce water cavitation and create microscopic bubbles which release energy upon collapsing. This energy is what ultimately cleans the items.

Does anybody know how could I calculate this energy?
Is there any direct energy transfer from the ultrasounds directly to the items?

Any help is appreciated.

Fabio

 

[eljose79]

Hello Fabio,

Thank you for sharing your experiment with us. The use of ultrasonic water bath cleaners is a common practice in laboratory settings and has been proven to be effective in cleaning various items.

To calculate the energy produced by the ultrasonic waves, you can use the following formula:

E = P × t

Where:
E = Energy (in joules)
P = Power (in watts)
t = Time (in seconds)

The power of the ultrasonic waves can be determined by the following formula:

P = A × I

Where:
P = Power (in watts)
A = Amplitude (in meters)
I = Intensity (in watts per square meter)

The amplitude of the waves can be adjusted on the machine and the intensity can be measured using a power meter.

As for the direct energy transfer from the ultrasonic waves to the items, it is important to note that the energy released by the collapsing bubbles is not solely responsible for the cleaning process. The agitation and turbulence created by the bubbles also play a significant role in removing dirt and debris from the items.

I hope this information helps. If you have any further questions, please don't hesitate to ask. Best of luck with your experiment!