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Updated: Jul 13, 2026
08:16
Ice Generation and the Heat and Mass Transfer Phenomena of Introducing Water to a Cold Bath of Brine
Published on: March 13, 2017
How high can the temperature of a liquid be raised without boiling?
Das1, Chatterjee, Roy
1Department of Physics, Bose Institute 93/1 APC Road, Calcutta 700009, India.
Summary
This study introduces a novel acoustic method to determine the limit of superheat in liquids. This technique accurately measures the maximum temperature a liquid can reach above its boiling point before boiling occurs.
Area of Science:
- Thermodynamics
- Fluid Dynamics
- Physical Chemistry
Background:
- The limit of superheat is a critical parameter in understanding liquid behavior above its boiling point.
- Existing methods for determining the limit of superheat have limitations in accuracy and proximity to critical temperature.
Purpose of the Study:
- To present a novel and more accurate method for determining the limit of superheat in liquids.
- To investigate the nucleation rate of superheated liquids as a function of time.
Main Methods:
- Utilizing liquid drops suspended in a dust-free gel medium.
- Employing acoustic detection via a piezoelectric transducer to identify nucleation events.
- Measuring nucleation rate over time with a multichannel scaler.
Main Results:
- The developed method successfully determines the limit of superheat for liquids.
- Acoustic detection provides a sensitive measure of nucleation onset.
- Measurements closely approach the critical temperature of the liquids, surpassing previous methods.
Conclusions:
- The novel acoustic method offers a superior approach to measuring the limit of superheat.
- This technique provides more accurate superheating data, especially near the critical temperature.
- The findings advance the understanding of liquid phase transitions and nucleation phenomena.
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